UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934 (Amendment No.            )

COMFORT SYSTEMS USA, INC.

675 Bering Drive, Suite 400

Houston, Texas 77057

April [    ], 201613, 2018

To Our Stockholders:

You are cordially invited to attend the Annual Meeting of the Stockholders of Comfort Systems USA, Inc., which will be held on Thursday,Tuesday, May 19, 201622, 2018 at The Houstonian, 111 North Post Oak Lane, Houston, Texas 77024 at 11:00 a.m. local time.

Information about the meeting is presented on the following pages. At this meeting you are being asked to elect the nine directors nominated by the board to serve until the next annual meeting; to ratify the appointment of Ernst & Young LLP, independent auditors, as the Company'sCompany’s auditors for 2016;2018; and to approve, by stockholder non-binding advisory vote, the compensation paid by the Company to its named executive officers, commonly referred to as a "Say“Say on Pay" proposal; and to approve an amendment to Article Five of the Company's Second Amended and Restated Certificate of Incorporation to provide that any of the Company's directors may be removed, with or without cause, by the holders of a majority of the Company's outstanding shares then entitled to vote in an election of directors.Pay” proposal.

Please read the proxy statement, which presents important information about the Company and each of the items being presented for stockholder vote. Whether or not you intend to be present in person, when you have finished reading the statement, please submit your vote promptly by telephone or internet, which saves the Company money, or by marking, signing, and returning your proxy card in the enclosed envelope so that your shares will be represented.

We hope that many of you will be able to attend the meeting in person. We look forward to seeing you there.

Sincerely yours,

COMFORT SYSTEMS USA, INC.

675 Bering Drive, Suite 400

Houston, Texas 77057

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

TO BE HELD MAY 19, 201622, 2018

Notice is hereby given that the 20162018 Annual Meeting of Stockholders (the "Annual Meeting"“Annual Meeting”) of Comfort Systems USA, Inc., a Delaware corporation (the "Company"“Company”), will be held at The Houstonian, 111 North Post Oak Lane, Houston, Texas 77024, at 11:00 a.m. local time on Thursday,Tuesday, May 19, 201622, 2018 for the following purposes:

1.

To

1.To elect nine (9) directors nominated by the board of directors to serve until the 20172019 Annual Meeting of Stockholders;



2.

To

2.To ratify the appointment of Ernst & Young LLP, independent auditors, as the Company'sCompany’s auditors for 2016;



3.

To2018;

3.To approve, by a stockholder non-bindingnon‑binding advisory vote, the compensation paid by the Company to its named executive officers, commonly referred to as a "Say“Say on Pay"Pay” proposal;



4.

To approve an amendment to Article Five of the Company's Second Amended and Restated Certificate of Incorporation to provide that any of the Company's directors may be removed, with or without cause, by the holders of a majority of the shares then entitled to vote in an election of directors; and



5.

To

4.To transact any other business that may properly come before the Annual Meeting or any adjournment or postponement thereof.

We are not aware of any other business to come before the Annual Meeting. Any action may be taken on any one of the foregoing proposals at the Annual Meeting on the date specified above, or on any date or dates to which the Annual Meeting may be adjourned or postponed. Stockholders of record at the close of business on March 21, 201623, 2018 are entitled to notice of and to vote at the Annual Meeting. In the event there are not enough votes for a quorum or to approve or ratify any of the foregoing proposals at the time of the Annual Meeting, the Annual Meeting may be adjourned or postponed in order to permit our further solicitation of proxies.

Houston, Texas
April [    ], 2016

TO ASSURE YOUR REPRESENTATION AT THE MEETING, PLEASE EITHER FOLLOW THE DIRECTIONS FOR PHONE OR INTERNET VOTING ON YOUR PROXY CARD OR SIGN, DATE AND RETURN YOUR PROXY AS PROMPTLY AS POSSIBLE. AN ENVELOPE, WHICH REQUIRES NO POSTAGE IF MAILED IN THE UNITED STATES, IS ENCLOSED FOR THIS PURPOSE.

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COMFORT SYSTEMS USA, INC.

Annual Meeting of Stockholders

May 19, 201622, 2018

PROXY STATEMENT

GENERAL MEETING INFORMATION

Why am I receiving this proxy statement?

The enclosed proxy is solicited by the Board of Directors (the "Board"“Board”) of Comfort Systems USA, Inc. (the "Company"“Company”) for the 20162018 Annual Meeting of Stockholders (the "Annual Meeting"“Annual Meeting”), to be voted at the Annual Meeting. This proxy statement and the enclosed proxy are first being provided to stockholders on or about April [    ], 2016.13, 2018.

When and where is the 20162018 Annual Meeting of Stockholders?

The Annual Meeting will be held at The Houstonian, 111 North Post Oak Lane, Houston, Texas 77024, at 11:00 a.m. local time on Thursday,Tuesday, May 19, 2016,22, 2018, and at any reconvened meetings after any adjournments or postponements thereof.

Who can vote?

The holders of record of shares of the Company'sCompany’s common stock, $.01 par value per share (the "Common Stock"“Common Stock”), at the close of business on March 21, 201623, 2018 (the "Record Date"“Record Date”) are entitled to notice of and to vote at the Annual Meeting.

How do I vote?

If you are a record stockholder, you may vote in person at the Annual Meeting or by proxy. You may submit your vote by proxy by providing your voting instructions by internet or telephone or by signing, dating and returning a proxy card. The instructions for each method of voting are on the proxy card. If you wish to vote in person at the meeting, be sure to bring a form of personal picture identification with you.

If your stock is held by a broker, bank or other nominee (in "street name"“street name”) and you wish to vote in person at the meeting, in addition to picture identification, you should bring both (i) an account statement or a letter from the record holder indicating that you owned the shares as of the record date, and (ii) a proxy issued in your name, which you must obtain from the record holder.

What are the voting rights of holders of Common Stock?

Each share of Common Stock is entitled to one vote on each matter before the Annual Meeting.

What are my voting choices and what is the required vote?

By giving us your proxy, you authorize the persons named on the proxy card to vote your shares in the manner you indicate at the Annual Meeting or at any adjournments or postponements thereof.

Proposal 1: Election of Directors

In the vote on the election of director nominees nominated by the board of directors to serve until the 20172019 Annual Meeting, stockholders may:

(a)

vote for all nominees;



(b)

withhold authority from the proxy holders to vote for all nominees; or



(c)

vote for all nominees except those specified.

The Board recommends a vote FOR all nominees. If a quorum is present, the nine nominees for election as directors receiving the greatest number of votes properly cast at the Annual Meeting or at any adjournments or postponements thereof will be elected. AsThe Company has a result, a votepolicy to withhold authority will beaddress the resignation of an incumbent director who receives more votes “withheld” than votes “for” his or her election. See “Proposal Number 1: Election of Directors – Director Resignation Policy” below. Votes withheld from any director are counted towardfor purposes of determining the presence or absence of a quorum but will not affectfor the outcometransaction of the vote on the election of a director.business. Broker non-votesnon‑votes will be counted toward a quorum, but will not be taken into account in determining the outcome of the election.

Proposal 2: Ratification of Auditors

In the vote on whether to ratify the selection of Ernst & Young LLP as independent auditors for the Company for the year ending December 31, 2016,2018, stockholders may:

(a)

vote for ratification;



(b)

vote against ratification; or



(c)

abstain from voting on ratification.

The Board recommends a vote FOR ratification. If the stockholders do not ratify the selection, the Audit Committee will reconsider whether to retain Ernst & Young LLP, but still may retain them. Even if the selection is ratified, the Audit Committee, in its discretion, may change the appointment at any time during the year if it determines that such a change would be in the best interests of the Company and its stockholders. The affirmative vote of a majority of the votes cast by stockholders represented at the Annual Meeting and entitled to vote on this proposal will be required to ratify the appointment of the independent auditors. Abstentions will be counted toward a quorum, but will not be taken into account in determining the outcome of this vote.

Proposal 3: Non-BindingNon‑Binding Advisory "Say“Say on Pay"Pay” Vote

In the non-bindingnon‑binding advisory vote on whether to approve the compensation paid by the Company to its named executive officers, stockholders may:

(a)

vote for approval;



(b)

vote against approval; or



(c)

abstain from voting on the approval.

The Board recommends a vote FOR approval. The affirmative vote of a majority of the votes cast by stockholders represented at the Annual Meeting and entitled to vote on this proposal will constitute the stockholders' non-bindingstockholders’ non‑binding approval with respect to the Company'sCompany’s executive compensation programs. The Board and the Compensation Committee will review the voting results and take them into consideration when making future decisions regarding executive compensation. Abstentions and broker non-votesnon‑votes will be counted toward a quorum, but will not be taken into account in determining the outcome of this vote.

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Proposal 4: Approval of Amendment to Article Five of the Company's Second Amended and Restated Certificate of Incorporation

        In the vote on whether to approve the amendment to Article Five of the Company's Second Amended and Restated Certificate of Incorporation, stockholders may:

(a)

vote for approval;



(b)

vote against approval; or



(c)

abstain from voting on the approval.

        The Board recommends a vote FOR this proposal. The affirmative vote of a majority of the outstanding stock entitled to vote thereon will be required to adopt Proposal 4. Abstentions and broker non-votes will be counted toward a quorum, and will have the effect of a vote against this proposal.

What constitutes a quorum?

A quorum is the minimum number of shares required to hold a meeting. Consistent with Delaware law and the Company'sCompany’s Bylaws, the holders of a majority in number of the total outstanding shares of stock of the Company entitled to vote at the meeting, present in person or represented by proxy, constitutes a quorum as to that matter. As of the Record Date, 37,345,79937,134,435 shares of Common Stock, representing the same number of votes, were outstanding. Therefore, the presence of holders of Common Stock representing at least 18,672,90018,567,218 votes will be required to establish a quorum.

What is the difference between holding shares as a stockholder of record and as a beneficial owner of shares held in street name?

If your shares are registered directly in your name with our transfer agent, American Stock Transfer & Trust Company, you are considered the stockholder of record with respect to those shares, and the accompanying Notice of Annual Meeting was sent directly to you by the Company.

If your shares are held in an account at a brokerage firm, bank, broker-broker‑ dealer, or other similar organization, then you are the beneficial owner of shares held in "street“street name,"” and the Notice of Annual Meeting was forwarded to you by your bank, broker, or other intermediary. The organization holding your account is considered the stockholder of record for purposes of voting at the Annual Meeting. As a beneficial owner, you have the right to direct that organization on how to vote the shares held in your account.

What happens if I do not give specific voting instructions?

If you are a stockholder of record and you sign and return a proxy card without giving specific voting instructions, then the proxy holders will vote your shares FOR the nominees listed in Proposal 1, FOR the ratification of the appointment of Ernst & Young LLP as the Company'sCompany’s auditors for 20162018 in Proposal 2, and FOR approval with respect to the Company'sCompany’s executive compensation programs in Proposal 3, and FOR approval of the amendment to Article Five of the Company's Second Amended and Restated Certificate of Incorporation in Proposal 4.3.

If you are a beneficial owner of shares held in street name and do not provide the organization that holds your shares with specific voting instructions, under New York Stock Exchange ("NYSE"(“NYSE”) rules, the organization that holds your shares may generally vote on routine matters but cannot vote on non-routinenon‑routine matters (including uncontested director elections and "Say“Say on Pay"Pay”). If the organization that holds your shares does not receive instructions from you on how to vote your shares on a non-routinenon‑routine matter (including uncontested director elections and "Say“Say on Pay"Pay”), the organization that holds your shares will inform our election inspectors that it does not have the authority to vote on this matter with respect to your shares and your shares will not be voted. This is generally referred to as a

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"broker non-vote." “broker non‑vote.” When our election inspectors tabulate the votes for any particular matter, broker non-votesnon‑votes will be counted for purposes of determining whether a quorum is present, but will not otherwise be counted. We encourage you to provide voting instructions to the organization that holds your shares.

Can I change my vote after I return my proxy card?

Yes. A proxy may be revoked by a record stockholder at any time before it is voted by (i) returning to the Company another properly signed proxy bearing a later date, (ii) delivering a written revocation to the Secretary of the Company no later than the close of business on May 18, 2016,21, 2018, or (iii) attending the Annual Meeting or any adjourned session thereof and voting the shares covered by the proxy in person. If your stock is held in street name, you must follow the instructions of the broker, bank, or nominee as to how to change your vote.

Who pays to prepare, mail, and solicit the proxies?

The Company will pay the expense of soliciting proxies. In addition to the solicitation of proxies by use of the mails, the Company may use the services of its officers, directors, and regular employees as well as brokerage houses and other stockholders to solicit proxies personally and by mail, telephone, or email communication. The Company will reimburse brokers and other persons for their reasonable charges and expenses in forwarding soliciting materials to their principals. Officers and employees of the Company will receive no compensation in addition to their regular salaries to solicit proxies.

Who tabulates the votes?

Votes cast by proxy or in person at the Annual Meeting will be counted by two people appointed by the Company to act as election inspectors for the Annual Meeting.

Could other matters be decided at the Annual Meeting?

We do not know of any matters that may be properly presented for action at the Annual Meeting other than Proposals 1, 2, 3, and 4.3. If other business does properly come before the Annual Meeting, the persons named in the proxy intend to act on those matters as they deem advisable. With respect to shares held in street name, the nominee may vote on those matters, subject to the NYSE'sNYSE’s rules on the exercise of discretionary authority.

What happens if the Annual Meeting is postponed or adjourned?

Your proxy may be voted at the postponed or adjourned Annual Meeting. You will still be able to change your proxy until it is voted.

How can I find the Company'sCompany’s governance documents, such as its corporate Governance Standards, director Independence Guidelines, Corporate Compliance Policy, and Board committee charters?

All these documents can be found on our website athttp://governance.comfortsystemsusa.cominvestors.comfortsystemsusa.com. under the “Governance” tab. Please note that documents and information on our website are not incorporated into this proxy statement by reference. These documents are also available in print by writing to the Office of the General Counsel, 675 Bering Drive, Suite 400, Houston, Texas 77057.

How can I receive a copy of the Annual Report?

The Annual Report to Stockholders, which includes the Company'sCompany’s Annual Report on Form 10-K10‑K for the year ended December 31, 2015,2017, accompanies this proxy statement and may also be accessed through our website—http://investors.comfortsystemsusa.com.

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Where can I find the voting results of the Annual Meeting?

We plan to announce the preliminary voting results at the Annual Meeting and to publish the final results in a current report on Form 8-K,8‑K, which we will file with the United States Securities and Exchange Commission (the "SEC"“SEC”) and make available on our website—http://investors.comfortsystemsusa.com.

When and where will a list of stockholders be available?

A list of stockholders of record will be available for examination at the Company'sCompany’s headquarters during ordinary business hours for the ten days prior to the Annual Meeting.

PROPOSAL NUMBER 1

ELECTION OF DIRECTORS

Board of Directors

Nine directors will be elected at the Annual Meeting to serve for a one-year term expiring at the Annual Meeting of Stockholders expected to be held in May 2017.2019. Mr. Giardinelli will not stand for reelection at the Annual Meeting and his term will expire at the conclusion of the Annual Meeting.

Information with Respect to Nominees for Director

The nominees for election at the Annual Meeting are Darcy G. Anderson, Herman E. Bulls, Alfred J. Giardinelli, Jr., Alan P. Krusi, Brian E. Lane, Franklin Myers, William J. Sandbrook, James H. Schultz, Constance E. Skidmore, and Vance W. Tang (collectively the "Nominees"“Nominees”).

If elected, each Nominee has agreed to serve for a term of one year expiring at the 20172019 Annual Meeting of Stockholders. It is expected that all of the Nominees will be able to serve, but if any Nominee is unable to serve, the proxies reserve discretion to vote, or refrain from voting, for a substitute nominee.

Nominees

Set forth below are the names, ages as of March 31, 2016,2018 and principal occupations for at least the past five years of each of the Nominees and the names of any other public companies on which each is currently serving, or has served in the past five years, as a director:

DARCY G. ANDERSON, 59
Director
61

Director

Darcy G. Anderson has served as a Director of the Company since March 2008. Since April 2009, Mr. Anderson has served as Vice Chairman of Hillwood, a real estate, oil and gas, and investments company. From November 2000 until April 2009, Mr. Anderson served as Chief People Officer and Vice President for Perot Systems Corporation, an information technology services and consulting firm. Prior to joining Perot Systems, Mr. Anderson held various positions at Hillwood Development Corporation beginning in 1987, including Senior Vice President for Corporate Affairs and Chief Operating Officer. Mr. Anderson also served as president of Hillwood Urban, overseeing all of the operations and development for the company'scompany’s Victory project and the new American Airlines Center in downtown Dallas. He also served in various leadership roles for the Perot '92‘92 Presidential Campaign. Mr. Anderson joined Electronic Data Systems (EDS) in 1983 working in recruiting management. Prior to his employment with EDS, Mr. Anderson completed five years of active duty in the United States Army Corp of Engineers. He is a Director for the West Point Association of Graduates and a Member of the Executive Committee of the Board of Directors of the Dallas World Affairs Council. Mr. Anderson is a graduate of the United States Military Academy at West Point.

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Mr. Anderson has significant experience and knowledge of real estate development, human resources and leadership development practices, energy efficiency, corporate facilities management, and information technology services.

HERMAN E. BULLS, 60
Director
62

Director

Herman E. Bulls has served as a Director of the Company since February 2001. Mr. Bulls serves as Vice Chairman, Americas and International Director of JLL, an international full-service real estate firm. He is the founder of JLL'sJLL’s Public Institutions and served as Chairman and Chief Executive Officer from January 2002 until January 2014. From September 2000 until August 2001, Mr. Bulls served as Executive Vice President and Chief Operating Officer of one of the nation'snation’s largest Fannie Mae multifamily lenders. From March 1998 to September 2000, Mr. Bulls was a Managing Director for JLL. From 1989 until 1998, he held several positions with the predecessor organization,

LaSalle Partners. Prior to his employment with JLL, he served over eleven years of active duty service with the United States Army. Mr. Bulls was the Co-Founder, President, and Chief Executive Officer of Bulls Capital Partners, a commercial mortgage firm. He sold the firm to a Wall Street entity in 2010. Mr. Bulls retired as a Colonel from the Army Reserve. Mr. Bulls is a member of the Board of Directors of the West Point Association of Graduates, serves as a member of the Real Estate Advisory Committee for New York State Teachers'Teachers’ Retirement System, and serves on the Board of Directors of Rasmussen College USAA, Tyco International and Computer Sciences Corporation.USAA. Mr. Bulls also currently serves on the Board of Governors for the American Red Cross and the Military Bowl. Mr. Bulls previously served on the Board of Directors of Computer Sciences Corporation (CSC) from 2015 to 2017, Exelis Inc., from 2011 until its 2015 merger with Harris Corporation.Corporation, and Tyco International from 2014 until its 2016 merger with Johnson Controls International PLC. Mr. Bulls is a graduate of the United States Military Academy at West Point and of the Harvard Business School.

Mr. Bulls has decades of real estate and finance experience with a particular knowledge of team building,team-building, marketing, and strategic development.

ALFRED J. GIARDINELLI, JR., 68
Director

        Alfred J. Giardinelli, Jr., one of the original founders of the Company, has served as a Director of the Company since June 1997. Since 1982, Mr. Giardinelli has been the President of Eastern Heating & Cooling, Inc., a New York corporation that is a wholly owned subsidiary of the Company. Mr. Giardinelli is a graduate of Florida State University.

        Mr. Giardinelli has forty years of experience in the construction industry and has been involved in the formation and growth of the Company since its inception. As President of one of the Company's operating subsidiaries, Mr. Giardinelli provides the Board a unique and valuable perspective on the construction business.

ALAN P. KRUSI, 61
Director
63

Director

Alan P. Krusi has served as a Director of the Company since March 2008. Mr. Krusi has beenwas President, Strategic Development of AECOM Technology Corporation, a global provider of professional technical and management support services, sincefrom October 2011 anduntil his retirement in March 2015. He served as Executive Vice President for Corporate Development of AECOM Technology Corporation from August 2008 until October 2011. From 2003 until 2008 Mr. Krusi served as President of Earth Tech, Inc., an engineering, consulting, and construction services firm owned by Tyco International. From 2002 to 2003, Mr. Krusi served as CEO of RealEnergy, Inc., a company providing on-siteonsite cogeneration to commercial and industrial customers. From 1999 to 2002, Mr. Krusi served as President of the Construction Services division of URS Corporation, where he oversaw an international construction services business specializing in construction management and

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program management. Prior to his employment with URS, and over a period of twenty- twenty‑two years, Mr. Krusi held a number of technical and management positions within the engineering and construction industries. Mr. Krusi currently also serves on the Board of Directors of Alacer Gold Corp, Layne Christensen Company and Lithko Contracting, LLC. Mr. Krusi served on the Board of Directors of Blue Earth, Inc., Alacer Gold Corp and Layne Christensen Company. from September 2014 to June 2016. Mr. Krusi is a graduate of the University of California at Santa Barbara and is a Registered Geologist, Certified Engineering Geologist, and Licensed General Contractor in the State of California.

Mr. Krusi has more than thirty-fivenearly forty years of experience in the construction and engineering industries, including experience in executive management positions for public companies.

BRIAN E. LANE, 59
61

Director, President, and Chief Executive Officer

Brian E. Lane has served as Chief Executive Officer and President of Comfort Systems since December 2011 and as a director since November 2010. Mr. Lane served as Comfort Systems'Systems’ President and Chief Operating Officer from March 2010 until December 2011. Mr. Lane joined Comfort Systems in October 2003 and served as Vice President and then Senior Vice President for Region One of the Company until he was named Executive Vice President and Chief Operating Officer in January 2009. Prior to joining Comfort Systems, Mr. Lane spent fifteen years at Halliburton, the global service and equipment company devoted to energy, industrial, and government customers. During his tenure at Halliburton, he held various positions in business development, strategy, and project initiatives. He departed as the Regional Director of Europe and Africa. Mr. Lane'sLane’s additional experience included serving as a Regional Director of Capstone Turbine Corporation, a distributed power manufacturer. He also was a Vice President of Kvaerner, an international engineering and construction company where he focused on the chemical industry. Mr. Lane is a member of the Board of Directors of Griffen Dewatering Corporation and Main Street Capital Corporation. Mr. Lane earned a Bachelor of Science in Chemistry from the University of Notre Dame and his MBA from Boston College.

Mr. Lane has more than thirty years of experience in the construction and engineering industries. As the Company'sCompany’s Chief Executive Officer and President, Mr. Lane provides the Board a valuable perspective on the Company's day- to-dayCompany’s day‑to‑day operations and on current trends and developments in the industry.

FRANKLIN MYERS, 63
65

Director and Chairman of the Board

Franklin Myers has served as a Director of the Company since May 2005 and as Chairman of the Board since May 2014. Mr. Myers has been a Senior Advisor and advisory director of Quantum Energy Partners, a private equity firm, since February 2013 and was an operating advisor to Paine and Partners, a private equity firm, from October 2009 until December 2012. From April 2008 until March 2009, Mr. Myers served as Senior Advisor to Cameron International Corporation, a global provider to the oil & gas and process industries. Mr. Myers served as the Senior Vice President of Finance and Chief Financial Officer of Cameron International Corporation from 2003 to 2008. From 1995 to 2003, Mr. Myers served at various times as Senior Vice President and President of a division within Cooper Cameron Corporation as well as General Counsel and Secretary. Prior to joining Cooper Cameron Corporation in 1995, Mr. Myers served as Senior Vice President and General Counsel of Baker Hughes Incorporated, and an attorney and partner at the law firm of Fulbright & Jaworski, now known as Norton Rose Fulbright. Mr. Myers currently serves on the Board of Directors of Ion Geophysical Corporation, HollyFrontier Corporation, Forum Energy Technologies and NCS Multistage, and Mr. Myers also serves on the boards of the following privately-owned companies: WireCo WorldGroup a privately owned company.and EPIC Industrial. Mr. Myers served on the Board of Directors of Seahawk Drilling Company from 2009 until 2011, and of Frontier Oil Corporation—a predecessor of HollyFrontier Corporation—from 2009 until its 2011 merger with Holly Corporation.Corporation, and Forum Energy Technologies from 2011 until March 2018. Mr. Myers holds a Bachelor of Science,

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Industrial Engineering, from Mississippi State University and a J.D. degree, with honors, from the University of Mississippi.

Mr. Myers has several decades of public company experience, with a particular knowledge of operations, financial management, and legal affairs. Additionally, Mr. Myers has significant experience serving on other public company boards and has served as an adjunct professor at the University of Texas School of Law where he taught a course on mergers and acquisitions.

WILLIAM J. SANDBROOK, 60

Director

Mr. Sandbrook has served as a Director of the Company since April 2018. Since August 2011, Mr. Sandbrook has served as President and Chief Executive Officer of U.S. Concrete, Inc. From June 2008 until August 2011, Mr. Sandbrook was Chief Executive Officer of Oldcastle Inc.’s Products and Distribution Group. From 2006 to June 2008, Mr. Sandbrook was Chief Executive Officer of Oldcastle Architectural Product’s Group responsible for Oldcastle’s U.S. and Canadian Operations, as well as CRH plc’s business in South America. From 1996 to 2006, Mr. Sandbrook served in various roles at Oldcastle Materials, including most recently as President of Oldcastle Materials West Division. From 1995 to 1996, Mr. Sandbrook served as President and Chief Executive Officer of Tilcon New York, and as Vice President from 1992 to 1995. Prior to 1992, Mr. Sandbrook spent thirteen years in the U.S. Army. Mr. Sandbrook currently serves on the Board of Directors of U.S. Concrete, Inc. In recognition of his efforts at Ground Zero after the September 11th bombing of the World Trade Center, Mr. Sandbrook was named the Rockland County, New York 2002 Business Leader of the Year, the Dominican College 2002 Man of the Year and the American Red Cross 2003 Man of the Year for Southern New York. Mr. Sandbrook holds an MBA from Wharton, a Master of Science in Systems Engineering from the University of Pennsylvania, a Master in Public Policy from the Naval War College, a Master of Arts in International Relations from Salve Regina University, and a Bachelor of Science from the United States Military Academy.

Mr. Sandbrook has over twenty-five years of operations experience in the building materials and construction industries, including significant experience as a Chief Executive Officer and experience as a public company board member.

JAMES H. SCHULTZ, 67
Director
69

Director

James H. Schultz has served as a Director of the Company since November 2002. He retired from the American Standard Companies in 2001, where he had worked for thirty-onethirty‑one years. Mr. Schultz served as President of the Trane Commercial Air Conditioning Group, a division of the American Standard Companies, from 1998 to 2001. Prior to that

time he served in various other capacities, including Executive Vice President. Mr. Schultz served on the Board of Directors of Goodman Global, Inc. from 2006 to 2008. Mr. Schultz has been Chair and a Board member of the Air Conditioning and Refrigeration Institute, and serves on The Iowa State University Foundation Board of Governors. Mr. Schultz is also a Board Member of Twin City Fan. Mr. Schultz is a graduate of Iowa State University.

Mr. Schultz has extensive experience related to the manufacture, sale, service, and installation of HVAC equipment and performance contracting.contracting and building energy management. As President of the Trane Commercial Air Conditioning Group, Mr. Schultz was responsible for the division'sdivision’s profit and loss statements. As a result of his experience, Mr. Schultz is very knowledgeable about the Company'sCompany’s industry.

CONSTANCE E. SKIDMORE, 64
Director
66

Director

Constance E. Skidmore has served as a Director of the Company since December 2012. Ms. Skidmore retired from PricewaterhouseCoopers, a public accounting firm, in 2009, after serving for more than two decades as a partner, including a term on its governing board. Ms. Skidmore serves on the Board of Directors and chairs the Audit Committee of ShoreTel, Inc. (NASDAQ: SHOR)Sensata Technologies (NYSE: ST) and on the boards of several other privately-held and non-profit companies: Ivis Technologies, The V Foundation for Cancer Research and Viz Kinect,Kinect. Ms. Skidmore previously served on the Board of Directors and First Warning Systems.Audit Committee of Shortel, Inc. (NASDAQ: SHOR) from 2014 until 2017 when it was acquired by Mitel Networks Corporation. Ms. Skidmore is a graduate of Florida State University and earned a masterMaster of scienceScience in taxationTaxation from Golden Gate University.

Ms. Skidmore has more than thirty years of experience in accounting and finance, including in the construction industry, and significant experience and knowledge in talent management and strategic planning.

VANCE W. TANG, 49
Director
51

Director

Vance W. Tang has served as a Director of the Company since December 2012. Mr. Tang has been President and Owner of VanTegrity Financial, LLC, a wealth management firm, since February 2012, and VanTegrity Consulting, a strategy and leadership consulting services and executive coaching provider, since August 2012. Mr. Tang previously owned a wealth management business, VanTegrity Financial, LLC, from February 2012 to December 2016. He served as President and Chief Executive Officer of the U.S. subsidiary of KONE OY, a public company and a leading global provider of elevators and escalators, and Executive Vice President of KONE Corporation from February 2007 until August 2012. In this role he led the organization through a major transformation around customer focus and profitable growth. Prior to joining KONE, he was Vice President and General Manager at Honeywell Building Control Systems. Previously, he spent more than a decadeover fourteen years at Trane, a supplier of heating, ventilation, and air conditioning systems to both the residential and commercial markets. He serves on

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the Board of Directors of American Woodmark Corporation (NASDAQ:AMWD) and previously on the Board of Governors of the Center for Creative Leadership. Mr. Tang has a Bachelor of Science degree in Electrical Engineering and an MBA degree from the University of Wisconsin.

Mr. Tang has deep operations experience in the construction and service industries, including experience as a Chief Executive Officer, and he also has experience serving on other public company boards. Additionally, Mr. Tang is currently serving as our Board Liaison for Cybersecurity, leveraging his engineering background and business leadership experience.

The Board of Directors recommends that stockholders voteFOR

the Directors listed above in Proposal Number 1.

Meetings of the Board and Committees

During the year ended December 31, 2015,2017, the Board held five regular meetings and fourfive special meetings. At each regularly scheduled meeting of the Board, the non-managementnon-employee directors, each of whom is independent, met separately from management in executive session under the direction of Mr. Myers, the Chairman of the Board.

Members of the Board are encouraged to attend the Annual Meeting and all members of the Board attended the Annual Meeting in 2015.2017. Additional information regarding the determination of director independence is set forth below under "Corporate“Corporate Governance—Independence."” Each director has attended at least 75% of the aggregate of the number of meetings of the Board and the Board committees of which he or she was or is a member that took place during his or her term of office.

The Board has several committees. Each of these committees and their members are described below. The Board has adopted a written charter for each of these committees which, together with the Board'sBoard’s Governance Standards and Independence Guidelines, are available on the Company'sCompany’s website athttp://governance.comfortsystemsusa.cominvestors.comfortsystemsusa.com, under the “Governance” tab, or by writing to Comfort Systems USA, Inc., Office of the General Counsel, 675 Bering Drive, Suite 400, Houston, Texas 77057.

Audit Committee

The Audit Committee, which held eight regular meetings during 2015,2017, reviews with management and the independent auditors the Company'sCompany’s quarterly and annual financial statements, the scope of the audit, any comments made by the independent auditors and such other matters as the committee deems appropriate. In addition, the Audit Committee reviews the performance and retention of the Company'sCompany’s independent auditors and reviews with management those matters relating to compliance with corporate policies, as the committee deems appropriate. The Audit Committee reviews and reassesses the adequacy of its charter every year and has done so for 2016.2018.

The current members of the Audit Committee are Ms. Skidmore and Messrs. Myers, Krusi, Schultz and Tang, none of whom is or has been an executive officer or employee of the Company at any time. The Board has determined that the committee consists entirely of directors who meet the independence requirements of the NYSE'sNYSE’s listing standards, the Board'sBoard’s Independence Guidelines (discussed below at "Corporate“Corporate Governance—Independence"Independence”) and the rules and regulations under the Securities Exchange Act of 1934, as amended (the "Exchange Act"“Exchange Act”). In addition, the Board has determined that each member of the Audit Committee is financially literate, and based on accounting or related financial management expertise, that each of Ms. Skidmore and Messrs. Myers, Krusi, Schultz and Tang are audit committee financial experts.

Compensation Committee

The Compensation Committee, which held five regular meetings and one special meeting during 2015,2017, establishes and administers the Company'sCompany’s executive compensation program and reviews and

appropriate with an emphasis on diversity of viewpoint and professional experience, reviews the compensation structure for the non-employee directors and the frequency and content of meetings, establishes and reviews the Company'sCompany’s succession plan for its Chief Executive Officer, and makes recommendations to the Board on all such matters. Although the committee does not have a formalThe committee’s diversity policy values diversity in its broadest sense, reflecting, but not limited to, an individual’s profession, geography, gender, ethnicity, race, skills, background and experience, and endeavors to include candidates who are diverse, including in terms of race and gender, in the committee works to maintain aqualified pool from which Board that is diverse in viewpoint and professional experience.candidates are chosen. The committee periodically examines the composition of the Board to ensure that the Board, taken as a whole, has the necessary skills and experience to steer the Company toward its stated objectives, as well as the necessary skills and experience to set the Company'sCompany’s future strategies. Directors are nominated or elected by the Board, and stockholders may nominate directors as described further in "Corporate“Corporate Governance—Director Nomination by Stockholders."” The committee identifies Board candidates through a variety of formal and informal channels. The committee has the authority to hire a professional search firm to help identify candidates with specific qualifications. Itqualifications; although it has no current engagement with any such firm.firm, the committee worked with a third party search firm in 2017 and early 2018 to identify a potential new director. The third party search firm retained by the committee recommended William J. Sandbrook as a new director based on criteria established by the Committee. The current members of the committee are Messrs. Schultz,Tang, Anderson, Bulls, and TangSchultz and Ms. Skidmore, each of whom the Board has determined to meet the independence requirements of the NYSE listing standards, the Board'sBoard’s Independence Guidelines, and the rules and regulations under the Exchange Act.

Corporate Governance

The Board believes the purpose of corporate governance is to maximize stockholder value in a manner consistent with legal requirements and the highest standards of integrity. The Board has adopted and adheres to corporate governance practices that the Board believes promote this purpose, are sound practices, and represent best practices. The Board continually reviews these governance practices, Delaware law (the state in which the Company is incorporated), the rules and listing standards of the NYSE and SEC regulations, and best practices suggested by recognized governance authorities. The corporate Governance Standards are posted on the Company'sCompany’s website athttp://governance.comfortsystemsusa.cominvestors.comfortsystemsusa.com under the “Governance” tab and are also available upon request to Comfort Systems USA, Inc., Office of the General Counsel, 675 Bering Drive, Suite 400, Houston, Texas 77057.

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Code of Ethics

The Company adopted the Compliance Policy in 1997, the year the Company was founded. That policy, with subsequent amendments discussed, approved and adopted by the Board, remains in effect and applies to the Company'sCompany’s directors, officers and employees who are subject to disciplinary action, including termination, for violations of the policy. The policy forms the basis of the Company'sCompany’s ethics and compliance program and covers a wide range of areas. Many Company policies are summarized in the Compliance Policy including conflict of interest, insider trading, confidentiality, and compliance with all laws and regulations applicable to the conduct of the Company'sCompany’s business. The Compliance Policy is regularly reinforced to the Company’s employees and management through periodic ethics, equal opportunity employment and anti-corruption trainings. Any amendments to the Compliance Policy or the grant of a waiver from a provision of the policy requiring disclosure under applicable SEC rules will be disclosed to the public. The Compliance Policy is posted under the "Governance"“Governance” tab of the Company'sCompany’s website athttp://governance.comfortsystemsusa.cominvestors.comfortsystemsusa.com and is also available upon request to Comfort Systems USA, Inc., Office of the General Counsel, 675 Bering Drive, Suite 400, Houston, Texas 77057.

Independence

Independence

The Board has adopted Independence Guidelines to assist the Board in making independence determinations relating to members of the Board. The criteria are consistent with the NYSE listing standards regarding director independence. For a director to be considered independent, the Board must determine that the director does not have a material relationship, directly or indirectly, with the Company. The Independence Guidelines are published on our website,http://governance.comfortsystemsusa.cominvestors.comfortsystemsusa.com, under the “Governance” tab, and are also available by written request to Comfort Systems USA, Inc., Office of the General Counsel, 675 Bering Drive, Suite 400, Houston, TX 77057.

The Board has considered the independence of its members in light of the Independence Guidelines and the rules and regulations under the Exchange Act and NYSE, including each director'sdirector’s affiliations and relationships, and has determined that Ms. Skidmore and Messrs. Anderson, Bulls, Krusi, Myers, Sandbrook, Schultz and Tang, who together constitute a majority of the Board, qualify as independent directors of the Company.

Director Nomination by Stockholders

The Board will consider director candidates recommended by stockholders for inclusion on the slate of directors nominated by the Board. Any stockholder may submit a candidate or candidates for consideration in conformity with the Bylaws and as set forth hereafter under the caption "Stockholder“Stockholder Proposals."” Stockholders desiring to recommend a candidate must submit the recommendation to the Governance and Nominating Committee c/o the Corporate Secretary, Comfort Systems USA, Inc., 675 Bering Drive, Suite 400, Houston, Texas 77057. If a nominating stockholder is not a record holder, the stockholder must provide the same evidence of eligibility as set forth in Exchange Act Rule 14a-14a‑ 8(b)(2).

At the time the nominating stockholder submits the recommendation, the candidate must submit all personal information that the Company would be required to disclose in a proxy statement in accordance with Exchange Act rules. In addition, at that time the candidate must:

•

Certify that he or she meets the requirements to be: (a) independent under the NYSE's listing standards and the Board's Independence Guidelines, (b) a non-management director under Rule 16b-3 of the Exchange Act, and (c) an outside director under Section 162(m) of the Internal Revenue Code of 1986, as amended from time to time, and pertinent regulations promulgated thereunder by the Internal Revenue Service (collectively, the "Code");



•

Consent to serve on the Board, if nominated and elected; and



•

Agree to complete, upon request, a customary director's questionnaire.

Board Leadership Structure and Self-EvaluationSelf‑Evaluation Process

The Board does not have a formal policy regarding whether the position of Chairman of the Board may be filled by the Company'sCompany’s Chief Executive Officer. Instead, the Board has adopted a fluid approach to the Board'sBoard’s leadership structure that allows for variations depending on the circumstances and changing needs of the Company over time.

Mr. Myers has served as a director since 2005 and has served as the Company'sCompany’s Chairman of the Board since May 2014. The Board has determined that Mr. Myers meets the independence requirements of the NYSE listing standards, the Board'sBoard’s Independence Guidelines, and the rules and regulations under the Exchange Act. The Board has carefully considered its leadership structure and determined that currently it is in the best interest of the Company and its stockholders for the roles of Chairman of the Board and Chief Executive Officer to be filled by different individuals. This structure allows the Chief Executive Officer to focus on the Company's day-to-dayCompany’s day‑to‑day operations.

Since the Company has an independent, non-executivenon‑executive Chairman of the Board, the Company has determined that the role of a Lead Director is not currently necessary. The Board may appoint a Lead Director to coordinate the activities of the independent directors in the future at its discretion.

Pursuant to the Board'sBoard’s policy, the Board conducts an annual self-evaluation process as follows: (i) each director evaluates the Board as a whole; (ii) each member of the Audit Committee, the Compensation Committee and the Governance and Nominating Committee evaluates the respective committeescommittee(s) on which he or she serves; and (iii) each director prepares an individual self-evaluation.performance-related self-evaluation of himself or herself. In connection with this annual self-evaluation, the Board considers whether the current leadership structure continues to be appropriate for the Company. The Board believes that directors should be responsive to the Company'sCompany’s evolving circumstances and objectives, and adaptthat the Board'sBoard’s leadership structure should adapt when necessary.

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The Board'sBoard’s Role in Risk Oversight

The Company'sCompany’s full Board is actively involved in overseeing the Company'sCompany’s risk management process and the Company'sCompany’s risk appetite. These activities are aligned with the Company'sCompany’s strategy. Additionally, the Audit Committee, Compensation Committee, and Governance and Nominating Committee consider risks that fall within their respective areas of responsibilities. A group of the Company's top executivesCompany’s executive officers serve on a committee (the "Risk Committee"“Risk Committee”) that is directly responsible for the Company'sCompany’s risk management process. The Company'sCompany’s President and Chief Executive Officer, a member of the Board, serves on the Risk Committee; however, the Risk Committee is a committee of management, not of the Board. The Risk Committee meets at least annually to define and improve the risk-mapping process and considers any appropriate updates at least quarterly. All members of the Risk Committee attended each of the quarterly meetings held in 2017. Any risks that are identified through the Company'sCompany’s compliance and ethics program are included in the Risk Committee'sCommittee’s processes, along with operational, financial, and strategic risks. The Risk Committee presents comprehensive reports directly to the Board at least annually.

Director Resignation Policy

Effective March 8, 2017, the Board adopted a Director Resignation Policy to address the situation in which a nominee for director in an uncontested election to the Board receives more votes “withheld” than votes “for” his or her election. The policy provides that any incumbent nominee for director in an uncontested election who receives a greater number of votes affirmatively “withheld” with respect to his or her election than votes “for” such election (a “majority withhold vote”) shall promptly tender his or her resignation to the Chairman of the Board following certification of the stockholder vote. The Governance and Nominating Committee will promptly consider the tendered resignation and recommend to the Board whether to accept or reject the resignation or take other action, such as rejecting the tendered resignation and addressing the apparent underlying causes of the majority withheld vote. In making its recommendation, the committee will consider all relevant factors, including, but not limited to, (i) the underlying reasons why stockholders withheld their votes (if ascertainable), (ii) the length of service and qualifications of the director whose resignation has been tendered, (iii) the director’s contributions to the Board and the Company, (iv) the overall composition of the Board and compliance with applicable laws, regulations, governing documents, and stock exchange listing standards, (v) the availability of other qualified candidates, and (vi) whether accepting the resignation is in the

best interests of stockholders and the Company. The Board will act on the committee’s recommendation no later than its first regularly scheduled meeting following certification of the stockholder vote, but in no case, later than 120 days following the vote certification. Following the committee’s recommendation and the Board’s decision, the Company will promptly publicly disclose its decision whether to accept or reject such tendered resignation in a periodic or current report filed or furnished in accordance with SEC rules.

Any director who tenders his or her resignation under the Director Resignation Policy will not participate in the committee recommendation or Board consideration of the resignation. However, such director will otherwise remain as an active Board member unless and until the resignation becomes effective. If a majority of the Governance and Nominating Committee members receive a majority withhold vote at the same election, then the independent directors who did not receive a majority withhold vote will appoint a committee amongst themselves to consider the tendered resignations. If the only directors who did not receive a majority withhold vote in the same election constitute fewer directors than a majority of the Board, then all the independent directors may participate in the Board consideration of the tendered resignations, except that no director will participate in the vote on his or her own resignation.

While this summary reflects the current terms of the Director Resignation Policy, the Board retains the power to amend and administer the policy as the Board, in its sole discretion, determines is appropriate. The Director Resignation Policy is published under the “Governance” tab on our website, http://investors.comfortsystemsusa.com, and is also available by written request to Comfort Systems USA, Inc., Office of the General Counsel, 675 Bering Drive, Suite 400, Houston, TX 77057.

Director Compensation for 2015
2017

In 2015,2017, each director who was not an employee of the Company or one of its subsidiaries received, in equal quarterly installments, an annual cash fee based on service as follows: $60,000 for service on the Board; $20,000$30,000 to serve as the chair of the Audit Committee; $10,000$20,000 to serve as the chair of the Compensation Committee or the Governance and Nominating Committee; and $30,000$50,000 to serve as the chairman of the Board.Board, in each case, prorated for partial years of service.

Each non-employee director who continues in office or is elected at an annual stockholder meeting receives an award of fully-vested shares of Common Stock having a fair market value on the grant date equal to $125,000, provided that in no event will$140,000. Pursuant to the numberCompany’s 2017 Omnibus Incentive Plan, the maximum grant date fair value of sharesawards granted to each individual non-employee director in connection with the annual awardany calendar year may not exceed 12,500.$400,000. The Board has adopted stock ownership guidelines that require directorseach non-employee director to own not less than (i) 1,000an amount of shares of Common Stock within 90 daysequal to ten times the director’s annual cash fees for service on the Board (excluding any additional fees for service as the chair of their initial election by stockholders; (ii) 10,000 sharesthe Board or any committee of the Board and any other compensation or expense reimbursement received by the second anniversarydirector) within five years of being elected or appointed to the Board. The Governance and Nominating Committee evaluates each director’s stock ownership on an annual basis. At the time of such evaluation, the value of the director's initial election;stock ownership is determined by reference to the higher of: (i) the original share (or share equivalent) purchase or issuance price, and (iii) 20,000 shares by(ii) the fourth anniversaryvalue of the director's initial election.share (or share equivalent) price at the time of determining compliance with these stock ownership guidelines. The Governance and Nominating Committee may modify these stock ownership guidelines in its reasonable discretion and is

authorized to make exceptions to these stock ownership guidelines when special circumstances arise. All non-employee directors currently comply with these ownership guidelines.

Directors who are employees of the Company or one of its subsidiaries receive no additional compensation for serving as directors. The following table discloses the compensation earned, paid or awarded, as the case may be, to each of the Company's non-employeeCompany’s non‑employee directors during 2015.2017.

PROPOSAL NUMBER 2

RATIFICATION OF THE SELECTION OF INDEPENDENT AUDITORS

The Audit Committee has re-appointedre‑appointed Ernst & Young LLP as the Company'sCompany’s independent auditors for the year ending December 31, 2016.2018. Ernst & Young LLP was the Company'sCompany’s independent auditor for the year ended December 31, 2015.2017.

We expect that representatives of Ernst & Young LLP will be present at the Annual Meeting to respond to appropriate questions, and they will have the opportunity to make a statement if they desire.

The affirmative vote of holders of a majority of the shares of Common Stock voted at the Annual Meeting is required to ratify the appointment of Ernst & Young LLP as the Company'sCompany’s independent auditors for 2016.2018. If the stockholders fail to ratify the appointment, the Audit Committee will reconsider its selection, but it still may decide to retain Ernst & Young LLP. Even if the appointment is ratified, the Audit Committee, in its discretion, may direct the appointment of a different independent accounting firm at any time during the year if the committee determines that such a change would be in the best interests of the Company and its stockholders.

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Relationship with Independent Auditors

The Audit Committee has selected Ernst & Young LLP as independent auditors for the Company for the year ending December 31, 2016.2018. Ernst & Young LLP acted as independent auditors for the Company for the year ended December 31, 2015.2017. Fees to the Company and its subsidiaries for professional services rendered by Ernst & Young LLP during 20152017 and 20142016 were as follows:

The Board of Directors recommends that

stockholders voteFOR Proposal Number 2.

PROPOSAL NUMBER 3

ADVISORY VOTE TO APPROVE THE COMPENSATION OF THE NAMED EXECUTIVE OFFICERS

The Board recognizes that executive compensation is an important matter for our stockholders. As described in detail in the "Compensation“Compensation Discussion and Analysis" ("CD&A"Analysis” (the “CD&A”) section of and elsewhere in this Proxy Statement,proxy statement, the Compensation Committee is tasked with the implementation of our executive compensation philosophy, and the core of that philosophy has been and continues to be to pay the NamedCompany’s named executive officers (the “Named Executive OfficersOfficers”) based on Company performance. In particular, the Compensation Committee strives to attract, retain and motivate exceptional executives,executive officers, to reward past performance as measured against established goals, andto provide incentives for future performance, and to align executives'executive officers’ long-term interests with the interests of our stockholders. To do so, the Compensation Committee uses a combination of short- and long-term incentive compensation to reward near-term performance and to encourage executives'executive officers’ commitment to our long-range strategic business goals. It is the intention of the Compensation Committee that our executive officers be compensated competitively and consistently with our business goals and strategy, sound corporate governance principles, and stockholder interests and

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concerns. As discussed further in the CD&A, the Compensation Committee retains compensation consultants and consults compensation databasesreviews survey and peer group data, provided by Equilar, to ensure that compensation for key positions is properly aligned with market expectations.practices. Further, the Company'sCompany’s commitment to aligning pay with performance is evidenced by the compensation paid to performance can be seen in the overall trend of compensation foror earned by the Named Executive Officers.

As described in the CD&A, we believe our compensation program is effective, appropriate, and strongly aligned with the long-termlong‑term interests of our stockholders and that the total compensation packages provided to the Named Executive Officers (including potential payouts upon a termination of employment or change in control) are reasonable and not excessive. As you consider this Proposal Number 3, we urge you to read the CD&A section of this Proxy Statementproxy statement for additional details on our executive compensation program, including the more detailed information about our compensation philosophy and objectives and the past compensation of the Named Executive Officers, and to review the tabular disclosures regarding Named Executive Officer compensation together with the accompanying narrative disclosures in the "Summary“Summary of Executive Compensation"Compensation” section of this Proxy Statement.proxy statement.

Congress has enacted the Dodd-FrankDodd‑Frank Wall Street Reform and Consumer Protection Act ("Dodd-Frank"(“Dodd‑Frank”), which requires a non-bindingnon‑binding advisory "Say“Say on Pay"Pay” vote and gives our stockholders the opportunity to express their views on the compensation of the Named Executive Officers. We value the opportunity to give our stockholders an opportunity to provide us with such a vote on executive compensation at the Annual Meeting.

As an advisory vote and as prescribed by Dodd-Frank, Proposal Number 3 is not binding on the Board or the Compensation Committee, will not overrule any decisions made by the Board or the Compensation Committee, and will not require the Board or the Compensation Committee to take any action. Although the vote is non-binding, the Board and the Compensation Committee value the opinions of our stockholders, and will carefully consider the outcome of the vote when making future compensation decisions for the Named Executive Officers. In particular, to the extentif there is anyare a significant votenumber of votes against the Named Executive Officers'Officers’ compensation as disclosed in this Proxy Statement,proxy statement, we will consider our stockholders'stockholders’ concerns and the Board and the Compensation Committee will evaluate whether any actions are necessary to address those concerns. Unless the Board modifies its policy on the frequency of "Say“Say on Pay"Pay” votes, the next "Say“Say on Pay"Pay” vote will be held in 2017.2019.

The Board of Directors is asking that stockholders cast a non-binding,non‑binding, advisory vote FOR the following resolution:

        "RESOLVED,“RESOLVED, that the compensation paid to the Company'sCompany’s named executive officers, as disclosed pursuant to Item 402 of Regulation S-K,S‑K, including the Compensation Discussion and Analysis, compensation tables and narrative discussion, is hereby APPROVED on an advisory basis."”

The Board of Directors recommends that

stockholders voteFOR Proposal Number 3.

PROPOSAL NUMBER 4
APPROVAL OF AMENDMENT TO ARTICLE FIVE OF THE COMPANY'S SECOND
AMENDED AND RESTATED CERTIFICATE OF INCORPORATION

Description of Amendment

        On December 21, 2015, the Delaware Chancery Court (the "Court") issued an opinion in In re VAALCO Energy, Inc. Stockholder Litigation, Consol. C.A. No. 11775-VCL, invalidating as a matter of law provisions of the certificate of incorporation and bylaws of VAALCO Energy, Inc., a Delaware corporation ("VAALCO"), that permitted the removal of VAALCO's directors by its stockholders only for cause. The Court held that, in the absence of a classified board or cumulative voting, VAALCO's "only for cause" director removal provisions conflict with Section 141(k) of the Delaware General Corporation Law (the "DGCL") and are therefore invalid. Specifically, Section 141(k) of the DGCL

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provides that any director, or the entire Board of Directors, may be removed, with or without cause, by the holders of a majority of the voting power of the outstanding stock then entitled to vote in an election of directors, except that, whenever the holders of any class or series of stock is entitled to elect one or more directors, such director or directors may be removed without cause only by the holders of a majority of the voting power of the outstanding shares of such class or series of stock.

        Article Five of the Second Amended and Restated Certificate of Incorporation of the Company currently contains a similar "only for cause" director removal provision, and the Company does not have a classified board of directors or cumulative voting. In light of the VAALCO decision, the Board of Directors of the Company resolved that it is advisable and in the best interests of the Company and its stockholders to amend Article Five of the Second Amendment and Restated Certificate of Incorporation of the Company to eliminate the "only for cause" director removal provision (the "Amendment"). Following the effectiveness of the Amendment, any member of the Board of Directors may be removed, with or without cause, by the holders of a majority of the voting power of the outstanding stock then entitled to vote in an election of directors. The Amendment may be viewed as increasing the accountability of the Company's directors to stockholders by providing stockholders with the opportunity to remove directors without cause.

        If the proposed Amendment is approved at the Meeting, the Company will file the Amendment, which is set forth in Appendix A, with the Secretary of State of the State of Delaware. The Amendment will become effective upon filing. However, as previously announced on January 15, 2016, by the filing of a Form 8-K, the Company will not attempt to enforce the "only for cause" director removal provision prior to the effectiveness of the Amendment.

Vote Required

        The affirmative vote of a majority of the outstanding shares of Common Stock entitled to vote thereon is required for approval of this Proposal. Abstentions and broker non-votes will have the same effect as a vote against Proposal Number 4.

Our Board recommends that
stockholders voteFOR Proposal Number 4.

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The following table sets forth information about the beneficial ownership of shares of Common Stock as of March 1, 2016:2018: (i) individually by the Chief Executive Officer, each of the other executive officers of the Company in 2015 as named in the Summary Compensation Table (the "NamedNamed Executive Officers"),Officers, and current directors and nominees for director of the Company, (ii) by all executive officers and directors of the Company as a group, and (iii) each person known to the Company as reported on schedules filed with the SEC to be the beneficial owner of more than 5% of the outstanding Common Stock of the Company.

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Except as noted below, each of the persons listed has sole investment and voting power with respect to the shares indicated.

$13.86; 26,571

(4)

Includes 19,124 options with an exercise price of $12.46; 21,122 options with an exercise price of $13.87; 54,247 options with an exercise price of $11.21; 44,476 options with an exercise price of $13.86; 39,861 options with an exercise price of $16.15; 11,518 options with an exercise price of $19.67; 9,135 options with an exercise price of $30.36; and 8,663 options with an exercise price of $36.25.

(5)

Includes 11,344 shares of Common Stock issued pursuant to restricted stock grants that remain subject to tenure vesting.

(6)

Includes 10,000 options with an exercise price of $12.46; 19,151 options with an exercise price of $13.87; 20,000 options with an exercise price of $11.21; 29,888 options with an exercise price of $13.86; 26,786 options with an exercise price of $16.15; 7,020 options with an exercise price of $19.67; 5,457 options with an exercise price of $30.36; and 5,141 options with an exercise price of $36.25.

(7)

Includes 6,785 shares of Common Stock issued pursuant to restricted stock grants that remain subject to tenure vesting.

(8)

Includes 3,754 options with an exercise price of $13.87; 15,614 options with an exercise price of $11.21; 11,901 options with an exercise price of $13.86; 15,147 options with an exercise price of $16.15; 4,240 options with an exercise price of $19.67; 3,312 options with an exercise price of $30.36; and 3,025 options with an exercise price of $36.25.

(9)

Includes 4,032 shares of Common Stock issued pursuant to restricted stock grants that remain subject to tenure vesting.

(10)

Includes 1,008 options with an exercise price of $11.00; 1,799 options with an exercise price of $12.46; 1,666 options with an exercise price of $13.87; 2,019 options with an exercise price of $11.21; 4,674 options with an exercise price of $13.86; 5,567 options with an exercise price of $16.15; 2,511 options with an exercise price of $19.67; 1,973 options with an exercise price of $30.36; and 1,798 options with an exercise price of $36.25.

(11)

Includes 43,411 shares of Common Stock held in The Krusi Family Trust for which Mr. Krusi and his spouse are trustees.

(12)

Includes 26,827 shares of Common Stock held in The Tang Living Trust, dated October 3, 2014, for which Mr. Tang and his spouse are trustees.

(13)

Mr. Mylett resigned from the Company effective on February 1, 2017.

(14)

The nature of share ownership as of December 31, 2017 is reported in a Schedule 13G/A filed with the SEC on January 19, 2018.

(15)

The nature of share ownership as of December 31, 2017 is reported in a Schedule 13G/A filed with the SEC on February 9, 2018.

RATIO OF CHIEF EXECUTIVE OFFICER COMPENSATION TO MEDIAN COMPANY EMPLOYEE COMPENSATION

As required by Section 953(b) of $16.15;the Dodd-Frank Wall Street Reform and 11,515 options with an exercise priceConsumer Protection Act, and Item 402(u) of $19.67.

(5)

Includes 18,223 sharesRegulation S-K, we are providing the following information about the relationship of Common Stock issued pursuant to restricted stock grants that remain subject to tenure vesting.

(6)

Includes 18,120 options with an exercise pricethe annual total compensation of $13.15; 19,124 options with an exercise priceour employees and the annual total compensation of $12.46; 19,151 options with an exercise price of $13.87; 36,454 options with an exercise price of $11.21; 29,888 options with an exercise price of $13.86; 17,856 options with an exercise price of $16.15; and 7,018 options with an exercise price of $19.67.

(7)

Includes 10,619 shares of Common Stock issued pursuant to restricted stock grants that remain subject to tenure vesting.

(8)

Includes 6,488 options with an exercise price of $13.15; 7,266 options with an exercise price of $13.87; 20,614 options with an exercise price of $11.21; 16,901 options with an exercise price of $13.86; 10,097 options with an exercise price of $16.15; and 4,239 options with an exercise price of $19.67.

(9)

Includes 6,512 shares of Common Stock issued pursuant to restricted stock grants that remain subject to tenure vesting.

(10)

Includes 4,155 options with an exercise price of $11.94; 7,201 options with an exercise price of $13.15; 8,608 options with an exercise price of $11.00; 7,599 options with an exercise price of $12.46; 7,266 options with an exercise price of $13.87; 3,019 options with an exercise price of $11.21; 10,674 options with an exercise price of $13.86; 6,377 options with an exercise price of $16.15; and 2,510 options with an exercise price of $19.67.

(11)

Includes 10,000 options with an exercise price of $12.90; and 10,000 options with an exercise price of $13.51.

(12)

Includes 55,737 shares of Common Stock held in The Krusi Family Trust for which Mr. Krusi and his spouse are trustees.

(13)

Includes 8,444 shares of Common Stock issued pursuant to restricted stock grants that remain subject to tenure vesting.

(14)

Includes 10,319 options with an exercise price of $16.15; and 4,068 options with an exercise price of $19.67.

(15)

Includes 23,737 shares of Common Stock held in The Tang Living Trust, dated October 3, 2014, for which Mr. Tang and his spouse are trustees.

(16)

The nature of share ownership as of December 31, 2015our Chief Executive Officer. This pay ratio is reporteda reasonable estimate calculated in a Schedule 13G/A filedmanner consistent with Item 402(u) of Regulation S-K. Because the SEC rules for identifying the median compensated employee and calculating the pay ratio based on January 8, 2016.

(17)

The naturethat employee’s annual total compensation allow companies to adopt a variety of share ownership as of December 31, 2015 ismethodologies, to apply certain exclusions, and to make reasonable estimates and assumptions that reflect their compensation practices, the pay ratio reported in a Schedule 13G/A filed withby other companies may not be comparable to the SEC on January 8, 2016.

(18)

The nature of share ownership as of December 31, 2015 ispay ratio reported in a Schedule 13G/A filed with the SEC on February 11, 2016.

(19)

Share ownership information as of December 31, 2015 as reported in a Schedule 13G/A dated February 9, 2016. These securities are owned by various investment companies, comingled funds, group trusts and separate accounts for which Dimensional Fund Advisors LP serves as an investment adviser, sub-adviser or manager with power to direct investments and/or sole power to vote the securities. For the purposes of the reporting requirements of the Securities Exchange Act of 1934, Dimensional Fund Advisors LP is deemed to be beneficial owner of such securities; however; Dimensional Fund Advisors LP expressly disclaims that it is, in fact, the beneficial owner of such securities.

For 2017, our last completed fiscal year:

To identify the median of the annual total compensation of all our employees, as well as to determine the annual total compensation of our median employee, we took the following steps:

With respect to the annual total compensation of our Chief Executive Officer, we used the amount reported in the “Total” column of our 2017 Summary Compensation Table included in this proxy statement.

The Company recognizes that employees are a key asset and are vital to the Company’s continued success. In addition to the Company’s commitment to provide fair and equitable wages and benefits to employees, the Company also periodically conducts formal and informal surveys at all levels of the organization to gauge employee satisfaction and engagement. 

COMPENSATION DISCUSSION AND ANALYSIS

Overview Overview

This Compensation Discussion and Analysis ("CD&A"(the “CD&A”) provides an overview and analysis of the Company'sCompany’s executive compensation program and policies, the material compensation decisions made with respect to fiscal year 20152017 compensation, and the material factors considered in making those decisions. The CD&A focuses on the compensation paid to the Company's "named executive officers" ("Named Executive Officers")Officers unless noted otherwise. For 2015,2017, the Named Executive Officers are:

Brian E. Lane, President and Chief Executive Officer


William George, Executive Vice President and Chief Financial Officer
James Mylett, Senior Vice President—Service


Trent T. McKenna, Senior Vice President, General Counsel and Secretary


Julie S. Shaeff, Senior Vice President and Chief Accounting Officer

James Mylett,Former Senior Vice President—Service*

*Mr. Mylett provided notice to the Company on January 9, 2017 of his decision to resign from the Company and terminated employment effective on February 1, 2017. For more information regarding the compensation that Mr. Mylett received in connection with his termination of employment, see “Potential Payments on Termination or Change in Control” below.

The Board has delegated to the Compensation Committee (referred to in this sectionCD&A simply as the "Committee"“Committee”) the duty of designing and overseeing the Company'sCompany’s executive compensation program. The Committee is comprised entirely of independent (pursuant to NYSE, SEC and Internal Revenue Service rules, and the Company'sCompany’s own Independence Guidelines) members of the Board. The Company'sCompany’s executive compensation program is designed to attract, motivate, and retain talented executives so that the Company can achieve its best results and maximize long-term stockholder return, to align the long-term interests of Company executives with the interests of stockholders, and to to:

2017 Performance Highlights 2015 Performance Highlights

To put the Company's 2015Company’s 2017 compensation decisions in context, the following summarizes the Company'sCompany’s key financial and business results for 2015,2017, a year in which headwinds continued in the market for new construction in the United States. Even with these headwinds, the Company experienced exceptional performance in 2015:

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Revenues increased to $1,580,519,000 in 2015 as compared to $1,410,795,000 in 2014.



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Free cash flow for 2015 was $78,397,000 as compared to free cash flow of $24,724,000 in 2014.



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The Company reported net income attributable to Comfort Systems USA, Inc. for the year ended December 31, 2015 of $49,364,000, or $1.30 per diluted share, as compared to $23,063,000, or $0.61 per diluted share, for 2014. For purposes of our 2015 annual incentive plan, our non-GAAP EPS was also $1.30, as further described below.



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During 2015 the Company continued to make substantial incremental investments in service growth and improving its information technology infrastructure.

As a result of this performance, the currently employed Named Executive Officers each received 91.2% of their respective maximumEPS target award and 136.6% of their respective FCF target award under the corporate financial incentive portion of the Company's 2015Company’s 2017 annual incentive plan, as further described below.  For a description of how EPS and FCF are determined under this plan, please see “Annual Incentive Plan” below. We use the terms EPS and FCF in this CD&A to refer to those metrics as determined under our annual incentive plan.

Compensation and Governance Practices

Below we highlight certain of our practices that we consider good governance features of our executive compensation program.

Executive Compensation Highlights
*Assuming target performance is achieved, when applicable, and based on grant date values of equity-based awards.

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A majority of officers' compensation is at risk (as defined below).



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A majority of officers' compensation is tied to the Company's financial performance and growth in stockholder value.



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Forty percent of officers' equity awards are subject to the Company achieving specific performance criteria over a three-year time horizon.

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Both executives and directors are subject to share ownership guidelines.



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The Company has adopted a compensation clawback policy and an anti-hedging/pledging policy that applies to all executive officers.



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The Committee engages an independent compensation consultant to advise on executive compensation.

Consideration of Stockholder Advisory Vote

In designing the overall executive compensation program, the Committee also values and considers stockholder input. While evaluating the Company's 2015Company’s 2017 executive compensation program, the Committee considered the stockholder advisory vote on the compensation paid to the Named Executive Officers that was taken in 2015.2017. The Committee consideredviewed the outcome of that advisory vote—approval by more than 99% in favor—to indicate94% of the shares voted—as indicating that the Company'sCompany’s stockholders generally support the Company'sCompany’s overall approach to executive compensation. In line with the Committee's consistent effortcompensation and made no changes to analyze and improve theour executive compensation program the Committee determined that it was appropriate to add free cash flow as a performance metric underresult of the Company's annual incentive plan in order to diversify the executive compensation program and to incentivize the Named Executive Officers to focus on this important financial metric.vote.

Compensation Philosophy and Objectives

The Committee evaluates each element of the overall executive compensation program to ensure that it helps meet the Committee'sCommittee’s objectives of:

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providing competitive base pay consistent with job scope, experience and related skills;



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linking bonus opportunities to the Company's performance;



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providing competitive base pay consistent with job scope, experience and related skills;

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linking bonus opportunities to the Company’s performance;

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granting equity compensation at competitive levels, a significant portion of which is performance‑based;

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avoiding unnecessary and imprudent risks; and

Against that backdrop, the Company'sCompany’s executive compensation program is designed to:

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pay competitive levels of salary and total compensation;



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link executive pay to Company performance by making a significant portion of pay variable and not fixed;



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align the interests of management with the long-term interests of stockholders; and



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reward long-term results.

To achieve these objectives, the Committee implements a "pay-for-performance"“pay‑for‑performance” philosophy using the guiding principles that: (i) compensation should be incentive-driven,incentive‑driven, with a balanced short-termshort‑term and long-termlong‑term focus; (ii) a significant portion of pay for seniorexecutive officers should be "at risk"“at-risk”; (iii) a significant portion of annual incentive compensation should be tied to the overall performance of the Company; and (iv) a portion of annual incentive compensation should be tied to individual performance criteria.

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Role of the CEOChief Executive Officer

Management, led by the CEO,Chief Executive Officer, at least annually makes recommendations to the Committee regarding the establishment and modification of compensation packages for individuals in the Company'sCompany’s senior management.management (except that no member of management makes a recommendation with respect to his or her own compensation package). The Committee considers management'smanagement’s recommendations during its regularly scheduled sessions,regularly-scheduled meetings, and may choose to adopt the recommendations or not adopt or modify them at the Committee'sCommittee’s sole discretion. The Committee is responsible for making all decisions regarding executive compensation.

Independent Compensation Consultant; Use of Market Data

In 2015,2017, the Committee retained Pearl Meyer & Partners ("PM&P"(“Pearl Meyer”) to advise the Committee on the design and administration of the Company'sCompany’s annual incentive plan and to provide a comprehensive analysis of executive compensation survey data and market trends. The Committee regularly reviews the services provided by its outside consultants and believes that PM&PPearl Meyer is independent in providing executive compensation consulting services. In making this determination, the Committee noted that during 2015:2017:

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PM&P

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Pearl Meyer did not provide any services to the Company or management other than services requested by or with the approval of the Committee, and its services were limited to executive and director compensation consulting. Specifically, Pearl Meyer does not provide, directly or indirectly through affiliates, any non‑executive compensation services, such as pension consulting or human resource outsourcing;

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Pearl Meyer maintains a conflicts policy, which was provided to the Committee with specific policies and procedures designed to ensure independence;

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Fees paid to Pearl Meyer by the Company during 2017 were less than 1% of Pearl Meyer’s total revenue;

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None of the Pearl Meyer consultants working on Company matters had any business or personal relationship with Committee members;

The Committee continues to monitormonitors the independence of its compensation consultant on a periodic basis.

        In connection with its engagement by the Committee, during 2015During 2017 the Committee consulted with PM&PPearl Meyer regarding the Company'sCompany’s annual incentive plan design and administration, and also thewhich included a comprehensive analysis done by PM&P regarding market trends and the executive compensation survey data provided by Equilar, as described below. InFollowing the Committee’s initial engagement of Pearl Meyer in 2013 the Committee engaged PM&P to provide the Committee with detailed analysis and recommendations on the structure of the Company'sCompany’s annual incentive plan in terms of design, metrics, and payout opportunities. In 2014 and 2015,opportunities, the Committee has continued to periodically refine the annual incentive plan based on a number of factors, including PM&P'sPearl Meyer’s recommendations, market trends in the Company'sCompany’s industry and general economic conditions.

Peer Group and the Benchmarking Process

Since 2010, the Committee has also reviewed executive compensation levels annually based on competitive compensation data provided by Equilar, an information services firm with products focusing on analyzing and benchmarking executive and director compensation information. The Committee does not attempt to maintainset executive compensation at a pre-defined percentile of the market, but the Committee does use the comparative data in an effort to be better informed in its compensation-related decisions.

The Committee believes that, due to the Company'sCompany’s unique position in its industry, there are no directly comparable companies in the broader market for the purpose of determining appropriate compensation for itsthe Named Executive Officers and, for this reason, does not usedepend solely on a "peer group"“peer group” to

Use of Tally Sheets

The Committee routinely uses tally sheets to assist it in analyzing the Named Executive Officers’ total compensation. Tally sheets provide the Committee with information about the following components of compensation paid over the preceding three-year period: cash compensation, including salary and annual incentive compensation, and long-term incentive compensation. These tally sheets also provide an estimate of amounts payable in the event of a voluntary or involuntary separation from service, death or disability, or a change in control resulting in termination of employment. The Committee also reviews information regarding long-term incentive awards, including statistics on share usage, analysis of current exercise values of outstanding option grants and current values of RSU and PSU awards, and a summary of current and past performance results.

Chief Executive Officer Compensation

        TheEach year, the Committee meets in executive session (i.e., separately from management) to evaluate the Chief Executive Officer'sOfficer’s performance and determinesdetermine his total compensation. The Committee conducts an assessment of the Chief Executive Officer'sOfficer’s performance as well as an assessment of such other relevant factors, such as the Company'sCompany’s performance, individual tenure, position tenure and succession planning, and sets the Chief Executive Officer's salaryOfficer’s compensation for each year based on the Committee'sCommittee’s assessment of these factors. Although the Committee does not attempt to target the Chief Executive Officer's payOfficer’s compensation at any specific percentile of similarly situated executive pay,compensation at similarly-situated or peer group companies, the Committee does use the data provided by Equilar as context in reviewing the Company'sChief Executive Officer’s overall compensation levels and approving recommended compensation actions. Based on compensation data provided by Equilar, the Chief Executive Officer'sOfficer’s compensation is below the market median when compared to other companies in the Company'sCompany’s peer group established by ISS (described above).

Elements of Compensation

The Company'sCompany’s executive compensation program consists of four basic elements:

While base salaries, together with health, welfare and retirement benefits, are designed to provide basic compensation and financial stability to the executives,executive officers, the purpose of annual incentive compensation is primarily to encourage the executivesexecutive officers to focus on the execution of the Company'sCompany’s business strategy and plan for the current year. Long-term incentives, granted in the form of equity awards,stock options, RSUs and PSUs, are designed to align executives'executive officers’ interests with those of stockholders, incentivize executive officers to attain longer-term goals and also to encourage them to remain with the Company. Unlike annual incentive compensation, which, as discussed below, tends to focus on more current Company and individual performance, long-term incentives focus on sustained results and growing stockholder value.

Relative Size of Major Compensation Elements

The combination of base salary, annual incentive awards, and long-term incentive awards comprise totalis referred to as the “total direct compensationcompensation” for the Named Executive Officers. In setting executive officer compensation, the Compensation Committee considers the aggregate compensation payable to the executive, assuming target performance is achieved, and the formforms of the compensation. The Compensation Committee seeks to achieve the appropriate balance between current cash compensation and incentives for the achievement of both annual and long-term financial and non-financial objectives.

Allocation Among Compensation Elements

        In 2015,For 2017, the portion of the CEO'sChief Executive Officer’s total direct compensation (assuming target performance was achieved and, for equity awards, based on grant date values at target) that was at riskat-risk is illustrated as follows:

        In 2015,For 2017, the portion of the total of Messrs. George's, McKenna'sGeorge’s and Mylett'sMcKenna’s and Ms. Shaeff'sShaeff’s total direct compensation (assuming target performance was achieved and, for equity awards, based on grant date values at target) that was at risk is illustrated as follows, based on an average of their respective compensation:

Although the value that a named executive officer may receive with respect to RSUs will depend on the performance of the Company’s Common Stock, and therefore is variable, we have included these awards as an element of “Fixed Pay” in the charts above.

Base Salary

The Committee determines base salary byafter considering several factors: (i)factors, including: the executive'sexecutive’s individual experience; (ii) the executive'sexperience, previous job performance;performance and (iii) the executive's individual skills. Only after weighing the previous threethese factors does the Committee consider comparable indicators. The Committee uses management'smanagement’s performance assessments, Company performance, survey data provided by Equilar, ISS peer group data (with respect to the Chief Executive Officer and Chief Financial Officer), and its own analysis of job performance to set each executive'sexecutive’s base salary at least annually. Based on the factors described above, on December 17, 2014,14, 2016, the Committee approved an increase in each Named Executive Officer'sOfficer’s base salary as indicatedset forth in the table below.

(1)

The Committee also approved an increase to Mr. Mylett’s base salary from $350,000 in 2016 to $360,500 in 2017. However, Mr. Mylett resigned from the Company effective on February 1, 2017. For more information regarding Mr. Mylett’s resignation, see “Potential Payments on Termination or Change in Control” below.

Annual Incentive Plan

The Named Executive Officers are eligible to participate in a cash-based annual incentive plan and receive incentive bonuses based on actual performance against key business and individual objectives. For 2017, each of the Named Executive Officers was eligible to participate in the annual incentive plans on the terms described below except Mr. Mylett. References to “named executive officers” below do not include references to Mr. Mylett since he forfeited his right to receive any annual incentive for 2017 upon his resignation in February 2017. 

The annual incentive plan consists of two distinct elements.components: a corporate financial performance component and an individual performance component. In 2015,2017, the principal elementcomponent of the annual incentive plan rewarded the achievement of earnings-per-share ("EPS"(“EPS”) and free cash flow ("FCF"(“FCF”) targets for Messrs. Lane, George and McKenna and Ms. Shaeff, and a combination of EPS and FCF targets and service growth (sales productivity and retention of service agreements) targets for Mr. Mylettgoals (collectively, the "Corporate“Corporate Financial Incentive"Incentive”). In prior years, this elementThe Committee continued the use of FCF as a metric under the annual incentive plan was based only on EPS performance, but the Committee introduced the FCF element in order to incentivize management'sbecause it incentivizes management’s focus on increasing the Company's cash-flow metrics.Company’s cash flow. The Committee believes that EPS remains an important metric for the Company because it encourages a focus on profitability. The Committee chose to include service growth targets for Mr. Mylett to incentivize him to continue to enhance this part of our business for which he is directly responsible. The second, smaller, elementcomponent of the annual incentive plan rewarded the achievement of certain individual performance metrics individualized for each executive (the "Individual“Individual Performance Incentive"Incentive”). Target annual incentive opportunities for 2017 are summarized in the table below:

Corporate Financial Incentive for 2015 at target consisted of 22.5% EPS threshold and 22.5% service growth threshold.