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                                                                   EXHIBIT 10.22

                              EMPLOYMENT AGREEMENT

         This Employment Agreement (the "Agreement") by and between Keith Riggs
Plumbing, Inc. (the "Company"), an Arizona corporation, American Plumbing &
Mechanical, Inc., a Delaware corporation ("AmPaM"), and Sam Sherwood
("Executive") is hereby entered into effective as of the date of the closing
date of the transactions contemplated in the Acquisition Agreement between the
Company, AmPaM and others dated February 11, 1999 (the "Effective Date").

                                    RECITALS

The following statements are true and correct:

         As of the Effective Date, the Company, AmPaM and the other subsidiaries
of AmPaM (collectively, the "AmPaM Companies") are engaged primarily in the
providing of plumbing and mechanical contracting services.

         Executive is employed hereunder by the Company in a confidential
relationship wherein Executive, in the course of his employment with the
Company, has and will continue to become familiar with and aware of information
as to the Company's and AmPaM's customers and specific manner of doing business,
including the processes, techniques and trade secrets utilized by the Company
and AmPaM, and future plans with respect thereto, all of which has been and will
be established and maintained at great expense to the Company and AmPaM. This
information is a trade secret and constitutes the valuable goodwill of the
Company and AmPaM.

         Therefore, in consideration of the mutual promises, terms, covenants
and conditions set forth herein and the performance of each, it is hereby agreed
as follows:

                                   AGREEMENTS

          1.   Employment and Duties.

               (a) The Company hereby employs Executive as Vice President of the
          Company. As such, Executive shall have the responsibilities, duties
          and authority reasonably accorded to, expected of and consistent with
          Executive's position as Vice President of the Company. Executive
          hereby accepts this employment upon the terms and conditions herein
          contained and, subject to paragraph 1(c), agrees to devote
          substantially all of his time, attention and efforts during normal
          business hours to promote and further the business and interests of
          the Company and its affiliates.

               (b) Executive shall faithfully adhere to, execute and fulfill all
          reasonable and lawful policies established by the Company, to the
          extent such policies have been



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          communicated to Executive in writing and are not inconsistent with any
          of the terms of this Agreement.

               (c) Except as set forth on Schedule 1(c) hereto, Executive shall
          not, during the term of his employment hereunder, engage in any other
          business activity pursued for gain, profit or other pecuniary
          advantage if such activity interferes in any material respect with
          Executive's duties and responsibilities hereunder. The foregoing
          limitations shall not be construed as prohibiting Executive from
          making personal investments in such form or manner as will not require
          a substantial portion of such Executive's time during normal business
          hours in the operation or affairs of the companies or enterprises in
          which such investments are made.

               (d) Executive shall be entitled to vacation in accordance with
          the policies of the Company.

          2.   Compensation. For all services rendered by Executive, the Company
shall compensate Executive as follows:

               (a) Base Salary. The base salary payable to Executive during the
          term shall be $100,000 per year, payable in accordance with the
          Company's payroll procedures for officers, but not less frequently
          than monthly. On an annual basis such base salary shall be reviewed by
          the Board of Directors of AmPaM (the "AmPaM Board") and may be
          adjusted at its discretion, in light of the Executive's position,
          responsibilities, performance and such other reasonable, job related
          factors that the AmPaM Board deems appropriate; provided, however, any
          adjusted Base Salary may not be less than that amount in effect on the
          Effective Date.

               (b) Annual Bonus. AmPaM will consider adopting an incentive bonus
          plan under which Executive and other key employees of the AmPaM
          Companies will be eligible to receive annual bonus awards in amounts
          that are competitive with those provided to similarly situated
          executives, as determined by the AmPaM Board.

               (c) Executive Perquisites, Benefits and Other Compensation.
          Executive shall be entitled to receive additional benefits and
          compensation from the Company in such form and to such extent as
          specified below:

                    (i) Executive shall be reimbursed for all business travel
               and other out-of-pocket expenses (including those costs to
               maintain any professional certifications held or obtained by
               Executive) reasonably incurred by Executive in the performance of
               his duties pursuant to this Agreement and in accordance with
               AmPaM's policy for its similarly situated executives. All such
               expenses shall be appropriately documented in reasonable detail
               by Executive upon submission of any request for



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               reimbursement, and in a format and manner consistent with AmPaM's
               expense reporting policy.

                    (ii) Executive shall be entitled to participate in all
               incentive compensation plans and to receive all fringe benefits
               and prerequisites offered by the Company or AmPaM to any of the
               Company's or the AmPaM Companies' similarly situated executives,
               including, without limitation, participation in the various
               employee benefit plans or programs provided to the employees of
               the Company or the AmPaM Companies in general, subject to the
               regular eligibility requirements with respect to each such
               benefit plans or programs.

                    (iii) The Company shall provide Executive with such other
               perquisites as may be deemed appropriate for Executive by the
               AmPaM Board during the term of this Agreement, all on a basis as
               favorable to Executive as may be provided or offered to other
               similarly situated executives of the AmPaM Companies.

          3.   Non-Competition Agreement.

               (a) Executive acknowledges that as a consequence of his
          employment with the Company, he will be furnished or have access to
          Confidential Information (as defined below). Executive further
          recognizes that the Company's willingness to enter into this Agreement
          is based in material part on Executive's agreement to the provisions
          of this paragraph 3 and that Executive's breach of the provisions of
          this paragraph 3 could materially damage the Company. Subject to
          paragraph 4(d) and the further provisions of this Agreement, Executive
          will not, during the term of his employment with the Company, and for
          a period of two years immediately following the termination of such
          employment for any reason, directly or indirectly, for himself or on
          behalf of or in conjunction with any other person, company,
          partnership, corporation or business of whatever nature:

                    (i) engage, as an officer, director, shareholder, owner,
               partner, joint venturer, or in a managerial capacity, whether as
               an employee, independent contractor, consultant or advisor, or as
               a sales representative, in any plumbing, piping, mechanical,
               heating, ventilation, or air conditioning contracting,
               installation or services business or operation, or any ancillary
               contracting, installation or services business directly related
               thereto (such business and operations referred to herein as the
               "Plumbing and Mechanical Business") within 100 miles of where any
               AmPaM Company conducts business, including any territory serviced
               by an AmPaM Company during the term of Executive's employment
               (the "Territory");

                    (ii) call upon any person who is, at that time, an employee
               of an AmPaM Company for the purpose or with the intent of
               enticing such employee away from or out of the employ of the
               AmPaM Company;



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                    (iii) call upon any person or entity which is, at that time,
               or which has been, within one year prior to that time, a customer
               of an AmPaM Company within the Territory for the purpose of
               soliciting customers, orders or contracts for any Plumbing and
               Mechanical Business within the Territory;

                    (iv) call upon any prospective acquisition candidate, on
               Executive's own behalf or on behalf of any competitor, which
               candidate was, to Executive's knowledge after due inquiry, either
               called upon by an AmPaM Company or for which an AmPaM Company
               made an acquisition analysis, for the purpose of acquiring such
               entity;

                    (v) disclose customers, whether in existence or proposed, of
               the Company to any person, firm, partnership, corporation or
               business for any reason or purpose whatsoever except to the
               extent that the Company has in the past disclosed such
               information to the public for valid business reasons; or

                    (vi) testify as an expert witness in matters related to the
               Plumbing and Mechanical Business for an adverse party to an AmPaM
               Company in litigation; provided, that nothing contained in this
               paragraph 4(a)(vi) shall interfere with Executive's duty to
               testify as a witness if required by law.

                    Notwithstanding the above, the foregoing covenant shall not
          be deemed to prohibit Executive from acquiring as an investment (i)
          not more than 1% of the capital stock of a company engaged in the
          Plumbing and Mechanical Business whose stock is traded on a national
          securities exchange, the Nasdaq Stock Market or on an over-the-counter
          or similar market or (ii) not more than 5% of the capital stock of a
          competing business whose stock is not publicly traded if the AmPaM
          Board consents to such acquisition.

               (b) Because of the difficulty of measuring economic losses to the
          Company and AmPaM as a result of a breach of the foregoing covenant,
          and because of the immediate and irreparable damage that could be
          caused to the Company and AmPaM for which they would have no other
          adequate remedy, Executive agrees that foregoing covenant may be
          enforced by the Company, in the event of breach by him, by
          injunctions, restraining orders and orders of specific performance
          issued by a court of competent jurisdiction. Executive further agrees
          to waive any requirement for the Company's securing or posting of any
          bond in connection with such remedies.

               (c) It is agreed by the parties that the foregoing covenants in
          this paragraph 3 impose a reasonable restraint on Executive in light
          of the activities and business of the AmPaM Companies on the date of
          the execution of this Agreement and the current plans of the AmPaM
          Companies; but it is also the intent of the Company and Executive
          that, subject to paragraph 3(g) hereof, such covenants be construed
          and enforced in accordance with the



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          changing activities, business and locations of the AmPaM Companies
          throughout the term of this covenant, whether before or after the date
          of termination of the employment of Executive, unless the Executive
          was conducting such new business prior to any AmPaM Company conducting
          such new business. For example, if, during the term of this Agreement,
          an AmPaM Company engages in new and different activities, enters a new
          business or establishes new locations for its current activities or
          business in addition to or other than the activities or business
          enumerated under the Recitals above or the locations currently
          established therefor, then, subject to paragraph 3(g) hereof, through
          the term of this covenant Executive will be precluded from soliciting
          the customers or employees of such new activities or business or from
          such new location and from directly competing with such new business
          activities, or locations within 100 miles of where such new
          activities, business or locations are conducted, unless Executive was
          conducting such new activities or business prior to any AmPaM Company
          conducting such new activities or business.

               (d) It is further agreed by the parties hereto that, in the event
          that Executive shall cease to be employed hereunder and shall enter
          into a business or pursue other activities not in competition with the
          Plumbing and Mechanical Business of any of the AmPaM Companies or
          similar activities or business in locations the operation of which,
          under such circumstances, does not violate clause (a)(i) of this
          paragraph 3, and in any event such new business, activities or
          location are not in violation of this paragraph 3 or of Executive's
          obligations under this paragraph 3, if any, Executive shall not be
          chargeable with a violation of this paragraph 3 if the AmPaM Companies
          shall, at any time after the termination of Executive's employment,
          enter the same, similar or a competitive (i) business, (ii) course of
          activities or (iii) location, as applicable.

               (e) The covenants in this paragraph 3 are severable and separate,
          and the unenforceability of any specific covenant shall not affect the
          provisions of any other covenant. Moreover, in the event any court of
          competent jurisdiction shall determine that the scope, time or
          territorial restrictions set forth are unreasonable, then it is the
          intention of the parties that such restrictions be enforced to the
          fullest extent which the court deems reasonable, and the Agreement
          shall thereby be reformed.

               (f) All of the covenants in this paragraph 3 shall be construed
          as an agreement independent of any other provision in this Agreement,
          and the existence of any claim or cause of action of Executive against
          the Company or AmPaM, whether predicated on this Agreement or
          otherwise, shall not constitute a defense to the enforcement by AmPaM
          or the Company of such covenants. It is specifically agreed that the
          period of two years (subject to the further provisions of this
          Agreement) following termination of employment stated at the beginning
          of this paragraph 3, during which the agreements and covenants of
          Executive made in this paragraph 3 shall be effective, shall be
          computed by excluding from such computation any time during which
          Executive is in violation of any provision of this paragraph 3.



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               (g) The Company and the Executive hereby agree that this covenant
          is a material and substantial part of this transaction.

          4.   Term; Termination; Rights on Termination. The term of this
Agreement shall begin on the Effective Date and continue for five years (the
"Initial Term") unless terminated sooner as herein provided; however, beginning
on the fifth anniversary of the Effective Date and on each anniversary
thereafter the term shall automatically continue for one year on the same terms
and conditions contained herein in effect as of the time of renewal (the
"Extended Term") unless not less than six months prior to any such anniversary
either party shall give written notice to the other party that the term shall
not be so extended; provided further, however, upon a Change in Control (as
defined in paragraph 11(d)) during the Initial Term or any Extended Term the
term of this Agreement shall automatically continue following such Change in
Control for a period equal to the then remaining term or two years, whichever
period is longer (such longer period being an Extended Term), unless earlier
terminated as provided in paragraph 11. This Agreement and Executive's
employment may be terminated in any one of the followings ways:

               (a) Death. The death of Executive shall immediately terminate
          this Agreement with no severance compensation due to Executive's
          estate; provided, however, for the 90 day period following Executive's
          death, the Company, at its sole cost and expense, shall continue to
          provide the Executive's then qualified beneficiaries with coverage
          under the Company's group health plan in which Executive participated
          immediately prior to his death or a successor plan thereto, subject to
          the terms of such plan as it may be amended ("Company Health Plan").
          Thereafter, the Company shall provide continuation of coverage
          elections to such qualified beneficiaries as are required by law.

               (b) Disability. If, Executive becomes entitled to and receives
          benefits under an insured long term disability plan of an AmPaM
          Company (incurs a "Disability"), the Company, with the approval of at
          least 51% of the members of the AmPaM Board, may terminate this
          Agreement and Executive's employment hereunder. In the event this
          Agreement is terminated as a result of Executive's Disability,
          Executive shall have no right to any severance compensation; provided,
          however, (i) for 12 months thereafter or until his death, if earlier,
          the Company shall continue to pay Executive an amount equal to his
          monthly base salary at the time of his termination, reduced by any
          monthly benefits payable to Executive under such long term disability
          plan and (ii) the Company, at its sole cost and expense, shall
          continue the coverage of Executive and his qualified beneficiaries
          (for as long as they are qualified beneficiaries thereunder) under the
          Company's Health Plan for as long as Executive continues to qualify
          for and receive benefits under such long term disability plan, but not
          to exceed five years. Thereafter, the Company shall provide COBRA
          elections to Executive and his qualified beneficiaries as required by
          law.

               (c) Cause. The Company may terminate this Agreement and
          Executive's employment 30 days after written notice is provided by the
          Company, at the direction of the



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          AmPaM Board, to Executive for "Cause", which shall be: (1) Executive's
          willful and material breach of this Agreement (which remains uncured
          at the end of such 30 day period); (2) Executive's gross negligence in
          the performance or intentional nonperformance (in either case
          continuing for 30 days after receipt of written notice by the Company,
          at the direction of the AmPaM Board, of need to cure) of any of
          Executive's material duties and responsibilities hereunder; (3)
          Executive's dishonesty or fraud with respect to the business,
          reputation or affairs of an AmPaM Company which materially and
          adversely affects an AmPaM Company (monetarily or otherwise); or (4)
          Executive's conviction of a felony crime involving moral turpitude.
          Any termination for Cause must be approved by at least 51% of the
          members of the AmPaM Board. For purposes hereof, no act, or failure to
          act, on Executive's part shall be deemed "willful" unless done, or
          omitted to be done, by Executive not in good faith and without
          reasonable belief that Executive's action or omission was in the best
          interest of the Company. Notwithstanding the foregoing, Executive
          shall not be deemed to have been terminated for Cause unless and until
          there shall have been delivered to Executive a copy of a resolution
          duly adopted by the AmPaM Board, finding that in the good faith
          opinion of the AmPaM Board Executive was guilty of conduct set forth
          above and specifying the particulars thereof in detail. In the event
          of a termination for Cause, Executive shall have no right to any
          severance compensation.

               (d) Without Cause and For Good Reason. Executive may, without
          Good Reason (as hereinafter defined), terminate this Agreement and
          Executive's employment, effective 30 days after written notice is
          provided to the Company. Executive may only be terminated without
          Cause and other than due to Disability by the Company during either
          the Initial Term or Extended Term if such termination is approved by
          at least 51% of the members of the AmPaM Board. Should Executive be
          terminated by the Company without Cause and other than due to
          Disability or should Executive terminate with Good Reason during the
          Initial Term, Executive shall receive from the Company, in a lump sum
          payment due on the effective date of termination, an amount equivalent
          to the base salary at the rate then in effect for (i) whatever time
          period is remaining under the Initial Term (but in no event more than
          two years) or (ii) for one year, whichever amount is greater. Should
          Executive be terminated by the Company without Cause and other than
          due to Disability or should the Executive terminate with Good Reason
          during the Extended Term, Executive shall receive from the Company, in
          a lump sum payment due on the effective date of termination, an amount
          equivalent to the base salary at the rate then in effect for one year.
          Further, any termination by the Company without Cause or due to
          Disability or by Executive for Good Reason (whether during the Initial
          Term or any Extended Term) shall operate to shorten the period set
          forth in paragraph 3(a) and during which the terms of paragraph 3
          apply to one year from the date of termination of employment. If
          Executive resigns or otherwise terminates his employment without Good
          Reason, rather than the Company terminating his employment pursuant to
          this paragraph 4(d), Executive shall receive no severance
          compensation.



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               Executive shall have "Good Reason" to terminate his employment
          hereunder upon the occurrence of any of the following events, unless
          such event is agreed to in writing by Executive: (a) Executive is
          demoted by means of a material reduction in authority, title,
          responsibilities or duties to a position of less stature or importance
          within the Company than the position described in Section 1 hereof;
          (b) Executive's annual base salary as then in effect is reduced in
          accordance with paragraph 2(a) or otherwise; or (c) the relocation of
          the Company's principal executive offices to a location outside the
          greater Phoenix, Arizona area or the Company's requiring Executive to
          relocate anywhere other than the Company's principal executive
          offices; (c) the assignment to Executive of any duties or
          responsibilities which are materially inconsistent with Executive's
          title, position or responsibilities as in effect immediately prior to
          such assignment; or (d) the failure by the Company to continue in
          effect any employee benefit plan in which Executive participates
          and/or any prerequisite provided Executive, which is (are) material to
          Executive's total compensation and benefits, unless an equitable
          arrangement (embodied in an ongoing substitute or alternative plan)
          has been made with respect to such plan or perquisite; provided,
          however, Good Reason shall exist with respect to a matter only if such
          matter is not corrected within 30 days of receipt by the Company of
          written notice of such matter from Executive.

         If termination of Executive's employment arises out of the Company's
failure to pay Executive on a timely basis the amounts to which he is entitled
under this Agreement or as a result of any other breach of this Agreement by the
Company, as determined by a court of competent jurisdiction or pursuant to the
provisions of paragraph 18 below, the Company shall pay all amounts and damages
to which Executive may be entitled as a result of such breach, including
interest thereon and all reasonable legal fees and expenses and other costs
incurred by Executive to enforce his rights hereunder. Further, none of the
provisions of paragraph 3 shall apply in the event this Agreement is terminated
as a result of a breach by the Company.

         Upon termination of this Agreement for any reason provided above, in
addition to the above payments, if any, Executive shall be entitled to receive
all compensation earned and all benefits and reimbursements due through the
effective date of termination, paid to Executive in a lump sum on the effective
date of termination. In addition, a termination of this Agreement shall not
alter or impair any of Executive's vested rights or benefits, if any, under any
(i) employee benefit plan of the AmPaM Companies or (ii) deferred compensation
plan, including, without limitation, any stock option plan, of the AmPaM
Companies. All other rights and obligations of the Company and Executive under
this Agreement shall cease as of the effective date of termination, except that
Executive's obligations under paragraphs 3, 5, 6, 7, and 8 herein and the
Company's obligations under paragraphs 4 (with respect to severance payments, if
applicable), 11(g) and 14 shall survive such termination in accordance with
their terms, unless or except as expressly provided otherwise in this Agreement.

         5.    Return of Company Property. All records, designs, patents,
business plans, financial statements, manuals, memoranda, lists and other
property delivered to or compiled by Executive by



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or on behalf of the Company, AmPaM or any AmPaM Companies or their
representatives, vendors or customers which pertain to the business of the
Company or AmPaM or any AmPaM Companies shall be and remain the property of the
Company or AmPaM or the AmPaM Company, as the case may be, and be subject at all
times to their discretion and control. Likewise, all correspondence, reports,
records, charts, advertising materials and other similar data pertaining to the
business, activities or future plans of the Company or AmPaM or the AmPaM
Company which is collected by Executive shall be delivered promptly to the
Company without request by it upon termination of Executive's employment and
Executive shall not retain any copies of the same.

          6.   Inventions. Executive shall disclose promptly to the Company any
and all significant conceptions and ideas for inventions, improvements and
valuable discoveries, whether patentable or not, which are conceived or made by
Executive, solely or jointly with another, during the period of employment or
within one year thereafter, if conceived during employment, and which are
directly related to the business or activities of the Company and which
Executive conceives as a result of his employment by the Company, including any
predecessor (collectively, the "Intellectual Property"). Executive hereby
assigns and agrees to assign all his interests therein to the Company or its
nominee. Whenever requested to do so by the Company, Executive shall execute any
and all applications, assignments or other instruments that the Company shall
deem necessary to apply for and obtain Letters Patent of the United States or
any foreign country or to otherwise protect the Company's interest therein.
Executive must also render to the Company, at the Company's expense, assistance
in the perfection, enforcement and defense of any Intellectual Property.

          7.   Trade Secrets. Executive agrees that he will not, during or after
the term of this Agreement, disclose the specific terms of the Company's or
AmPaM's relationships or agreements with their respective significant vendors or
customers or any other significant and material trade secret of the Company or
AmPaM, whether in existence or proposed, to any person, firm, partnership,
corporation or business for any reason or purpose whatsoever, except as required
by law and prior to any such disclosure Executive shall give the Company prior
written notice thereof and the opportunity to contest such disclosure.

          8.   Confidentiality.

               (a) Executive acknowledges and agrees that all Confidential
          Information (as defined below) of the Company is confidential and a
          valuable, special and unique asset of the Company that gives the
          Company an advantage over its actual and potential, current and future
          competitors. Executive further acknowledges and agrees that Executive
          owes the Company a fiduciary duty to preserve and protect all
          Confidential Information from unauthorized disclosure or unauthorized
          use, that certain Confidential Information constitutes "trade secrets"
          under applicable laws and, that unauthorized disclosure or
          unauthorized use of the Confidential Information would irreparably
          injure the Company.



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               (b) Both during the term of Executive's employment and after the
          termination of Executive's employment for any reason (including
          wrongful termination), Executive shall hold all Confidential
          Information in strict confidence, and shall not use any Confidential
          Information except for the benefit of the Company, in accordance with
          the duties assigned to Executive. Executive shall not, at any time
          (either during or after the term of Executive's employment), disclose
          any Confidential Information to any person or entity (except other
          employees of the Company who have a need to know the information in
          connection with the performance of their employment duties, and who
          have been informed of the confidential nature of the confidential
          information and have agreed to keep it confidential), or copy,
          reproduce, modify, transmit, including electronic transmission,
          decompile or reverse engineer any Confidential Information, or remove
          any Confidential Information from the Company's premises, without the
          prior written consent of the AmPaM Board, or permit any other person
          to do so. Executive shall take reasonable precautions to protect the
          physical security of all documents and other material containing
          Confidential Information (regardless of the medium on which the
          Confidential Information is stored). This Agreement applies to all
          Confidential Information, whether now known or later to become known
          to Executive.

               (c) Upon the termination of Executive's employment with the
          Company for any reason, and upon written request of the Company at any
          other time, Executive shall promptly surrender and deliver to the
          Company all documents and other written material of any nature
          containing or pertaining to any Confidential Information and shall not
          retain any such document or other material. Within five days of any
          such written request, Executive shall certify to the Company in
          writing that all such materials have been returned.

               (d) As used in this Agreement, the term "Confidential
          Information" shall mean any information or material known to or used
          by or for an AmPaM Company (whether or not owned or developed by an
          AmPaM Company and whether or not developed by Executive) that is not
          generally known to persons in the Plumbing and Mechanical Business.
          Confidential Information includes, but is not limited to, the
          following: all trade secrets of the AmPaM Companies; all information
          that an AmPaM Company has marked as confidential or has otherwise
          described to Executive (either in writing or orally) as confidential;
          all nonpublic information concerning the Company's products, services,
          prospective products or services, research, product designs, prices,
          discounts, costs, marketing plans, marketing techniques, market
          studies, test data, customers, customer lists and records, suppliers
          and contracts; all AmPaM Company business records and plans; all AmPaM
          Company personnel files; all financial information of or concerning
          the AmPaM Companies; all information relating to operating system
          software, application software, software and system methodology,
          hardware platforms, technical information, inventions, computer
          programs and listings, source codes, object codes, copyrights and
          other intellectual property; all technical specifications; any
          proprietary information belonging to an AmPaM Company; all computer
          hardware or software manuals; all training or instruction manuals; and
          all data and all computer system passwords and user codes. For
          purposes hereof, Confidential Information



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          shall not include such information (i) which becomes or is already
          known to the public through no fault of Executive; or (ii) the
          disclosure of which (x) is required by law (including regulations and
          rulings) or the order of any competent governmental authority or (y)
          Executive reasonably believes is required in connection with the
          defense of a lawsuit against Executive, provided that in either case,
          prior to disclosing any information, Executive shall give prior
          written notice thereof to the Company and provide the Company with the
          opportunity to contest such disclosure.

          9.   No Prior Agreements. Executive hereby represents and warrants to
the Company that the execution of this Agreement by Executive and his employment
by the Company and the performance of his duties hereunder will not violate or
be a breach of any agreement, including any non-competition agreement, invention
or secrecy agreement, with a former employer, client or any other person or
entity. Further, Executive agrees to indemnify the Company for any loss or
expense, including, but not limited to, reasonable attorneys' fees and expenses,
the Company may incur based upon or arising out of Executive's breach of this
paragraph 9.

         10.   Assignment; Binding Effect. Executive understands that he has
been selected for employment by the Company on the basis of his personal
qualifications, experience and skills. Executive agrees, therefore, that he
cannot assign all or any portion of his performance under this Agreement.
Subject to the preceding two sentences and the express provisions of paragraph
12 below, this Agreement shall be binding upon, inure to the benefit of and be
enforceable by the parties hereto and their respective heirs, legal
representatives, successors and assigns. The Company and AmPaM will require any
successor (whether direct or indirect, by purchase, merger, consolidation or
otherwise) to all or substantially all of the business and assets of the Company
or AmPaM to expressly assume and agree in writing reasonably satisfactory to
Executive to perform this Agreement in the same manner and to the same extent
that the Company or AmPaM would be required to perform it if no such succession
had taken place. Failure of the Company or AmPaM to obtain such written
agreement prior to the effectiveness of any such secession shall be a material
breach of this Agreement.

          11.  Change in Control.

               (a) Executive understands and acknowledges that the Company may
          be merged or consolidated with or into another entity and that such
          entity shall automatically succeed to the rights and obligations of
          the Company hereunder or that the Company may undergo a Change in
          Control (as defined below). In the event a Change in Control is
          initiated or occurs during the Initial Term or any Extended Term, then
          the provisions of this paragraph 11 shall be applicable.

               (b) In the event of a Change in Control wherein AmPaM and
          Executive have not received written notice at least ten business days
          prior to the date of the event giving rise to the Change in Control
          from the successor to all or a substantial portion of the AmPaM's



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          business and/or assets that such successor is willing as of the
          closing to assume and agrees to perform, or continue to cause the
          Company to perform, the Company's obligations under this Agreement in
          the same manner and to the same extent that the Company is hereby
          required to perform, then Executive may, at Executive's sole
          discretion, elect to terminate Executive's employment on the effective
          date of such Change in Control by providing written notice to the
          AmPaM Board at least five business days prior to the closing of the
          transaction giving rise to the Change in Control. In such case, the
          applicable provisions of paragraph 4(d) will apply as though the
          Company had terminated Executive without Cause; however, the amount of
          the lump sum severance payment due Executive shall be triple the
          amount calculated under the terms of paragraph 4(d), but shall in no
          event exceed six times Executive's annual base salary.

               (c) In any Change in Control situation, Executive may, at
          Executive's sole discretion, elect to terminate Executive's employment
          upon the effective date of such Change in Control by providing written
          notice to the AmPaM Board at least five business days prior to the
          closing of the transaction giving rise to the Change in Control. In
          such case, the applicable provisions of paragraph 4(d) will apply as
          though the Company had terminated Executive without Cause; however,
          the amount of the lump sum severance payment due Executive shall be
          double the amount calculated under the terms of paragraph 4(d), but
          shall in no event exceed four times Executive's annual base salary.

               (d) If, on or within two years following the effective date of a
          Change in Control the Company terminates Executive's employment other
          than for Cause or Disability or if Executive terminates his employment
          for Good Reason, or if Executive's employment with the Company is
          terminated by the Company within three months before the effective
          date of a Change in Control and it is reasonably demonstrated that
          such termination (i) was at the request of a third party that has
          taken steps reasonably calculated to effect a Change in Control, or
          (ii) otherwise arose in connection with or anticipation of a Change in
          Control, then Executive shall receive from Company, in a lump sum
          payment due on the effective date of termination, the greater of (i)
          the equivalent of three years' annual base salary at the rate in
          effect on the date of Executive's termination, or (ii) the base salary
          for whatever period is then remaining on the Initial Term, if any,
          which payment shall be in lieu of any amounts otherwise payable
          pursuant to paragraph 4(d).

               (e) A "Change in Control" shall be deemed to have occurred if:

                    (i) any person, entity or group (as such terms are used in
               Sections 13(d) and 14(d)(2) of the Securities Exchange Act of
               1934, as amended (the "Act"), other than the AmPaM Companies or
               an employee benefit plan of the AmPaM Companies, acquires,
               directly or indirectly, the beneficial ownership (as defined in
               Section 13(d) of the Act) of any voting security of AmPaM and
               immediately after such acquisition such person is, directly or
               indirectly, the beneficial owner of voting securities



                                      -12-
   13

               representing 20% or more of the total voting power of all of the
               then outstanding voting securities of AmPaM entitled to vote
               generally in the election of directors;

                    (ii) upon the first purchase of AmPaM's common stock
               pursuant to a tender or exchange offer (other than a tender or
               exchange offer made by AmPaM);

                    (iii) the stockholders of AmPaM shall approve a merger,
               consolidation, recapitalization or reorganization of AmPaM, or a
               reverse stock split of outstanding voting securities, or
               consummation of any such transaction if stockholder approval is
               not obtained, other than any such transaction which would result
               in at least 75% of the total voting power represented by the
               voting securities of the surviving entity outstanding immediately
               after such transaction being beneficially owned by the holders of
               all of the outstanding voting securities of AmPaM immediately
               prior to the transactions with the voting power of each such
               continuing holder relative to other such continuing holders not
               substantially altered in the transaction;

                    (iv) the stockholders of AmPaM shall approve a plan of
               complete liquidation or dissolution of AmPaM or an agreement for
               the sale or disposition by AmPaM of all or substantially all of
               AmPaM's assets; or

                    (v) if, at any time during any period of two consecutive
               years, individuals who at the beginning of such period constitute
               the Board cease for any reason to constitute at least a majority
               thereof, unless the election or nomination for the election by
               the Company's stockholders of each new director was approved by a
               vote of at least two-thirds of the directors then still in office
               who were directors at the beginning of the period.

               (f) Notwithstanding anything in this Agreement to the contrary, a
          termination pursuant to paragraph 11(b), (c), or (d) shall operate to
          automatically waive in full the noncompetition restrictions imposed on
          Executive pursuant to paragraph 3.

               (g) If it shall be finally determined that any payment made or
          benefit provided to Executive in connection with a Change in Control
          of the Company or AmPaM, whether or not made or provided pursuant to
          this Agreement, is subject to the excise tax imposed by Section 4999
          of the Internal Revenue Code of 1986, as amended, or any successor
          thereto, the Company shall pay Executive an amount of cash (the
          "Additional Amount") such that the net amount received by Executive
          after paying all applicable taxes on such Additional Amount shall be
          equal to the amount that Executive would have received if Section 4999
          were not applicable.

          12.  No Mitigation or Offset. Executive shall not be required to
mitigate the amount of any Company payment provided for in this Agreement by
seeking other employment or otherwise.



                                      -13-
   14

The amount of any payment required to be paid to Executive by the Company
pursuant to this Agreement shall not be reduced by any amounts that are owed to
the Company by Executive, or by any setoff, counterclaim, recoupment, defense or
other claim, right or action.

          13.  Release. Notwithstanding anything in this Agreement to the
contrary, Executive shall not be entitled to receive any severance payments
pursuant to paragraphs 4 or 11 of this Agreement unless Executive has executed
(and not revoked) a general release of all claims Executive may have against the
Company and its affiliates relating to Executive's employment hereunder in a
form of such release reasonably acceptable to the Company.

          14.  Indemnification. In the event Executive is made a party to any
threatened, pending or completed action, suit or proceeding, whether civil,
criminal, administrative or investigative (other than an action by the Company
against Executive), by reason of the fact that he is or was performing services
under this Agreement or as an executive officer of the Company prior to the date
of this Agreement, then the Company shall indemnify Executive against all
expenses (including attorneys' fees), judgments, fines and amounts paid in
settlement, as actually and reasonably incurred by Executive in connection
therewith. In the event that both Executive and the Company are made a party to
the same third-party action, complaint, suit or proceeding, the Company agrees
to engage competent legal representation, and Executive agrees to use the same
representation, provided that if counsel selected by the Company shall have a
conflict of interest that prevents such counsel from representing Executive,
Executive may engage separate counsel and the Company shall pay all reasonable
attorneys' fees and reasonable expenses of such separate counsel. Further, while
Executive is expected at all times to use his best efforts to faithfully
discharge his duties under this Agreement, Executive cannot be held liable to
the Company for errors or omissions made in good faith where Executive has not
exhibited gross, willful and wanton negligence and misconduct nor performed
criminal and fraudulent acts which materially damage the business of the
Company. The Company shall indemnify Executive against and hold Executive
harmless from any costs, liabilities, losses and exposures for Executive's
services as an employee, officer and director of the Company (or any successor)
to the maximum extent permitted under applicable law.

          15.  Complete Agreement. This Agreement supersedes, and replaces in
full, all representations, understandings and agreements (oral or written)
between Executive and the Company or any AmPaM Company, AmPaM or any of their
officers, directors or representatives existing as of the Effective Date and
covering the same subject matter as this Agreement, but excluding the
Acquisition Agreement among AmPaM, the Company, the Executive and other
stockholders of the Company, dated February 11, 1999, which shall not be
affected by this Agreement. This written Agreement is the final, complete and
exclusive statement and expression of the agreement between the Company, AmPaM
and Executive and of all the terms of this Agreement, and it cannot be varied,
contradicted or supplemented by evidence of any prior or contemporaneous oral or
written agreements. This written Agreement may not be modified after the
Effective Date except by a further writing signed by a duly authorized officer
of the Company and Executive, and no term of this Agreement may be waived except
by writing signed by the party



                                      -14-
   15

waiving the benefit of such term. Without limiting the generality of the
foregoing, either party's failure to insist on strict compliance with this
Agreement shall not be deemed a waiver thereof.

          16.  Notice. Whenever any notice is required hereunder, it shall be
given in writing addressed as follows:

          To the Company:    c/o American Plumbing & Mechanical, Inc.
                             1502 Augusta, Suite 425
                             Houston, Texas 77057

          To Executive:      3057 E. Harmony Avenue
                             Mesa, Arizona 85204

Notice shall be deemed given and effective on the earlier of three days after
the deposit in the U.S. mail of a writing addressed as above and sent first
class mail, certified, return receipt requested, or when actually received.
Either party may change the address for notice by notifying the other party of
such change in accordance with this paragraph 16.

          17.  Severability; Headings. If any portion of this Agreement is held
invalid or inoperative, the other portions of this Agreement shall be deemed
valid and operative and, so far as is reasonable and possible, effect shall be
given to the intent manifested by the portion held invalid or inoperative. The
paragraph headings herein are for reference purposes only and are not intended
in any way to describe, interpret, define or limit the extent or intent of the
Agreement or of any part hereof.

          18.  Dispute Resolutions. Except with respect to injunctive relief as
provided in paragraph 3(b), neither party shall institute a proceeding in any
court or administrative agency to resolve a dispute between the parties before
that party has sought to resolve the dispute through direct negotiation with the
other party. If the dispute is not resolved within two weeks after a demand for
direct negotiation, the parties shall attempt to resolve the dispute through
mediation. If the parties do not promptly agree on a mediator, the parties shall
request the Association of Attorney Mediators in Harris County, Texas to appoint
a mediator certified by the Supreme Court of Texas. If the mediator is unable to
facilitate a settlement of the dispute within a reasonable period of time, as
determined by the mediator, the mediator shall issue a written statement to the
parties to that effect and any unresolved dispute or controversy arising under
or in connection with this Agreement shall be settled exclusively by
arbitration, conducted before a panel of three arbitrators in Phoenix, Arizona,
in accordance with the rules of the American Arbitration Association then in
effect. The arbitrators shall have the authority to order back-pay, severance
compensation, vesting of options (or cash compensation in lieu of vesting of
options), reimbursement of costs and expenses, including those incurred to
enforce this Agreement, including reasonable attorneys' fees and interest
thereon in the event the arbitrators determine that Executive was terminated
without Disability or Cause, as defined in paragraphs 4(b) and 4(c),
respectively, or that the Company has otherwise materially



                                      -15-
   16

breached this Agreement. A decision by a majority of the arbitration panel shall
be final and binding. Judgment may be entered on the arbitrators' award in any
court having jurisdiction. The costs and expenses, including reasonable
attorneys' fees, of the prevailing party in any dispute arising under this
Agreement will be promptly paid by the other party.

          19.  Governing Law. This Agreement shall in all respects be construed
according to the laws of the State of Texas without regard to its conflicts of
law provisions.

          20.  AmPaM Guaranty. AmPaM hereby irrevocably and unconditionally
guarantees to Executive the payment of all amounts and the performance of all
other obligations of the Company in accordance with the terms of this Agreement.

          21.  Counterparts. This Agreement may be executed simultaneously in
two or more counterparts, each of which shall be deemed an original and all of
which together shall constitute but one and the same instrument.



                                      -16-
   17

         IN WITNESS WHEREOF, the parties hereto have executed this Agreement
effective for all purposes as of the Effective Date.


                                         KEITH RIGGS PLUMBING, INC.

                                         By: /s/ DAVID C. BAGGETT
                                            ------------------------------------
                                         Name:   David C. Baggett
                                              ----------------------------------
                                         Title:  Vice President
                                               ---------------------------------


                                         EXECUTIVE

                                         By: /s/ SAM SHERWOOD
                                            ------------------------------------
                                                 Sam Sherwood


                                         AMERICAN PLUMBING & MECHANICAL, INC.

                                         By: /s/ DAVID C. BAGGETT
                                            ------------------------------------
                                         Name:   David C. Baggett
                                              ----------------------------------
                                         Title:  Chief Financial Officer
                                               ---------------------------------



                                      -17-