Dycom Industries 8K Forward-Looking Statements and Non-GAAP Information | DY 28 Sep 10

D.A. Davidson E&C Conference
September 28, 2010

Forward-Looking Statements and Non-GAAP
Information

This presentation contains forward-looking statements within the meaning of the Private
Securities Litigation Reform Act of 1995. The words “believe,” “expect,” “anticipate,”
“estimate,” “intend,” “forecast,” “may,” “should,” “could,” “project,” “outlook” and similar
expressions identify forward-looking statements. These forward-looking statements are
based on management’s current expectations, estimates and projections and speak only as
of the date of this presentation. Forward-looking statements are subject to known and
unknown risks and uncertainties that may cause actual results in the future to differ
materially from the results projected or implied in any forward-looking statements contained
in this presentation. The factors that could affect future results and could cause these results
to differ materially from those expressed in the forward-looking statements include, but are
not limited to, those described under Item 1A, “Risk Factors” of the Company’s Annual
Report on Form 10-K for the year ended July 31, 2010, and other risks outlined in the
Company’s periodic filings with the Securities and Exchange Commission (“SEC”). Except
as required by law, the Company may not update forward-looking statements even though
its situation may change in the future.

This presentation includes certain “Non-GAAP” financial measures as defined by SEC rules.
As required by the SEC we have provided a reconciliation of those measures to the most
directly comparable GAAP measures on the Regulation G slide included at the end of this
presentation.

Dycom Industries Introduction

n Leading provider of specialty contracting services principally to
telephone and cable companies

n Telecommunications industry dynamics driving growth potential

n Major participant in a large, but fragmented industry, which offers
acquisition opportunities

n Significant portion of revenues from multi-year Master Service
Agreements

n Experienced management team operating through a decentralized,
customer-focused organizational structure

n Strong cash flows and liquidity

Customer Revenue Mix

Quarter Ended July 31, 2010 - $281.5 million*

*Q4-10 includes an incremental week as the result of our 52/53 week fiscal year.

Providing End-To-End Services

Engineering

Underground Facility Locating

Outside Plant & Equipment Installation

Dycom Industries At a Glance

Dycom is a leading telecommunications infrastructure provider in the United States

n Headquartered in Palm Beach Gardens, Florida

n Fourth quarter fiscal 2010 revenues of $281.5 million, including an
additional week required by our fiscal calendar

n Strong financial profile

} Cash and equivalents $103.3 million at July 31, 2010

} Shareholders’ equity $394.6 million at July 31, 2010

} Operating cash flow of $54.1 million for fiscal year 2010

} New five year $225 million revolving credit facility through
October 2015

n Nationwide footprint

} Operates in 48 states and to a limited extent in Canada

} 30 operating subsidiaries and hundreds of field offices

n Over 8,800 employees

n Listed on the NYSE under the ticker: DY

Strong subsidiaries, broad national footprint

Subsidiaries

Dycom’s Nationwide Presence

Dycom Operating Overview

Industry Developments…

n Telephone/cable industry convergence - a reality

} Competition for customers drives growth

n Network bandwidth expansion - an imperative

} Telephone companies expanding network capacity

} Cable responding to match capabilities and facilitate new
products such as VOIP, HDTV, and wideband

n Product bundles - key to telephone/cable success

} Decrease churn

} Provide revenue growth opportunities to offset market share
erosion

} Differentiate service from satellite video providers

…And Industry Opportunities

n Continued capital spending

} Telephone company deployments of Fiber (FTTx)

} Cable company bandwidth expansion

} Customer premise equipment deployments

} Fiber to the cell site

} Rural broadband deployment

n Renewed focus on network reliability and availability as subscribers
demand better service levels

n Continued outsourcing as time to market and installation quality
crucial for new product launches

Telecom Capital Spending

Capex Commentary

n Continued capital spending in wireline reflects burgeoning demand for voice, data and
video transmission

n RBOCs will continue to constitute the vast majority of U.S. fixed line investment

n Significant portion of RBOCs’ capital budgets are expected to be from fiber deployments,
including fiber to the cell site initiatives

n Carriers are shifting capital spending to address growth needs and increased
competition from cable companies

“… […] we will continue to invest in developing new products and services and
related businesses. We have IPTV in three markets basically using the same model
that AT&T uses with the Microsoft middleware. We have an Impact 4 Head End in

Missouri and basically, we use the fiber network that you saw to take the national
content out of that impact for Head End, put a local Head in, a mini-Head in, in an
area to take the off-the-air channels and combine the two and basically provide a
video product for our customers. We're in the stage of a soft launch of video, IPTV
video, in the Las Vegas market and expect to be rolling out other, more densely
populated markets in the EMBARQ footprint sometime next year.”

Glen Post III - CenturyLink - Chairman and Chief Executive Officer September 2010

Cable Capital Spending

Capex Commentary

n Continued capital expenditures on bandwidth reclamation, VOIP and HDTV product
offerings, and cellular backhaul

n Ongoing plant and network enhancements are critical as cable operators continue to
offer services that require greater reliability

n Network capacity and reliability increasingly crucial as cable companies compete with
traditional telecom firms

“We think, with all the devices that are coming out and WiFi being more ubiquitous,
that clearly people are going to see broadband as a more important part of their
household set, whether it's economy broadband at a lower price or whether it's 50 or
100 megabits, depending on what people want in their home. So we're really going to
focus on how do we expand that market. Obviously, the FCC is very focused on how
to expand that market as well, and we think that there will be upward pressure to
expand that market as well as -- and, we hope, to participate and take greater share
from that expansion as well as take share from some of our competitors.”

Mike Angelakis, Comcast -Chief Financial Officer September 2010

n “Dig Safe” laws in all 50 states require owners of underground utilities to
identify and mark their facilities prior to excavation

} Regulate telephone, cable, power, gas, water & sewer utilities

} Seek to minimize network outages, protect job-site workers, and
safeguard the general public

} Locates often required as a condition for permit issuance

n Generally outsourced by telecom companies and cable operators

} Work generated by excavators via “800 number” call centers

} High volume of transactions must be completed within 48-72 hours

n Regulatory backdrop promotes steady workflow

} Driven by regional macro-economic factors

Underground Facility Locating Services

Dycom’s Competitive Advantages

n Established customer relationships and reputation

n Broad geographic coverage

n Scale to satisfy customer time and service requirements

n Responsive, local decentralized business units

n Access to capital

n Senior management operating expertise

Growth Strategy As Opportunities
Expand

n Build and maintain long-term customer relationships at the local level

} Position business to capture both recurring maintenance and new capital
spending

n Empower subsidiary management

} Build relationships with customer contracting decision makers

} Utilize detailed knowledge of local pricing dynamics

} Leverage subcontractors and local trade relationships

n Deliberately select attractive customers with profitable business

} Focus on higher quality, long-term telecommunications industry leaders

n Selectively screen potential acquisitions

} Healthy players that bring long-term, established customer relationships

} Complement existing Dycom customer footprint

} Position Company for significant customer capital or maintenance
spending

Dycom employs a deliberate and methodical growth strategy

Blue-chip, predominantly investment grade clients comprise the vast majority of revenue

Well Established Customers

Fiscal Quarter Ended July 31, 2010

Customer Revenue Breakdown

Comcast

AT&T

CenturyLink

Verizon

Charter

Cablevision

Windstream

Questar Gas

Time Warner Cable

Electric Power Board

Other

Customer Rotation

Key long-term relationships help Dycom manage the cyclical nature of telecom and cable capex spending

For comparison purposes, when customers have been combined through acquisition or merger, their revenues have been combined for all periods.

62%

38%

63%

68%

32%

67%

33%

64%

36%

37%

63%

33%

67%

37%

64%

36%

64%

36%

64%

36%

Dycom’s revenue stream is primarily generated by long-term contractual agreements

n Master Service Agreements (MSA’s)

Revenue By Contract Type
Quarter Ended July 31, 2010

Revenue - Q4 Fiscal 2010

Senior Management

Seasoned management team with several decades of combined industry experience

Financial Update

nCentralize activities which yield synergistic benefits

} Treasury

} Tax

} Risk management

} Capital asset procurement

} Information technology resources

nDecentralize financial operations to provide solid support
and flexibility at operating unit level

nMaintain financial resources to support internal growth
and acquisition opportunities

Financial Overview

Fiscal Year Results - Revenue and
Earnings

(1) The amounts for EBITDA - Adjusted and Income from continuing operations -Non-GAAP are Non-GAAP financial measures adjusted to exclude certain items. See
“Regulation G Disclosure” slide for a reconciliation of Non-GAAP financial measures to GAAP financial measures.

n Revenue of $988.6 million for fiscal
2010 compared to $1,106.9 million
for fiscal 2009

n Fiscal 2010 revenue and results
impacted by customer reductions in
capital spending plans in response
to challenging economic conditions

Fiscal Year Results - Cash Flow and

Liquidity

(1) Capital expenditures net of proceeds from the sale of assets

(2) The amounts for EBITDA - Adjusted and Net Debt used in the calculations herein are Non-GAAP financial measures adjusted to exclude certain items. See
“Regulation G Disclosure” slide for a reconciliation of Non-GAAP financial measures to GAAP financial measures.

n Strong cash flow from operations. Fiscal
2010 cash flows impacted by lower levels
of operations

n Ample cash flows to support capital
expenditures and fund operations

n Long term financing in place as of
July 31, 2010

} $135.35 million Senior Subordinated
Notes - October 2015 maturity

} $225 million Credit Facility:

} June 2015 maturity

} No borrowings outstanding

n 0.4x ratio of Net Debt to EBITDA-Adjusted
in fiscal 2009 and fiscal 2010

n Seasonal revenue pattern driven by
weather and available work days

n Q4-10 reflects improving revenue
trends

n EBITDA - Adjusted and Income from
Continuing Operations increased
sequentially reflecting higher levels of
operations and increased productivity

(1) The amounts for EBITDA - Adjusted and Income (Loss) from continuing operations -Non-GAAP are Non-GAAP financial measures adjusted to exclude certain
items. See “Regulation G Disclosure” slide for a reconciliation of Non-GAAP financial measures to GAAP financial measures.

* Q4-10 includes an incremental week as the result of our 52/53 week fiscal year.

Quarterly Results - Cash Flow and

Liquidity

(1) Capital expenditures net of proceeds from the sale of assets

n Cash flows from operations impacted as
activity level increased during the quarter

n Capital expenditures, net of disposals at
$15.0 million, reflecting replacement cycle
and growth opportunities

n Strong financial profile

n Ample liquidity as of July 2010

} $103.3 million cash and equivalents

} $124.1 million availability under
Revolving Credit Facility

* Q4-10 includes an incremental week as the result of our 52/53 week fiscal year.

D.A. Davidson E&C Conference
September 28, 2010

Dycom Industries (DY) 8-KForward-Looking Statements and Non-GAAP Information