Quanta Services Reports First Quarter Results

Revenues increased 16 percent

Operating income up 65 percent

HOUSTON, May 3 /PRNewswire-FirstCall/ -- Quanta Services, Inc. (NYSE: PWR) today announced results for the three months ended March 31, 2007.

Revenues in the first quarter of 2007 were $574.9 million, an increase of $78.4 million from revenues of $496.5 million in the first quarter of 2006. Net income increased $23.3 million to $31.2 million for the first quarter of 2007, compared to net income of $7.9 million in the first quarter of 2006. Earnings per diluted share were $0.23 in the first quarter of 2007, compared to earnings per diluted share of $0.07 in the first quarter of 2006. The first quarter 2007 results include the effect of $15.3 million in tax benefits, or $0.10 per diluted share, primarily associated with a reduction in the allowance for tax contingencies due to the settlement of a multi-year audit by the Internal Revenue Service. Excluding the effect of these tax benefits, adjusted net income was $15.9 million and adjusted earnings per diluted share were $0.13 in the first quarter of 2007. Adjusted net income and earnings per diluted share are non-GAAP measures.

"Our first quarter again illustrated the strength of the markets we serve and our ability to perform in those markets," said John R. Colson, chairman and chief executive officer of Quanta Services. "Compared to the first quarter of last year, which was also a strong quarter, revenues increased 16 percent, operating income was up 65 percent, and operating margins improved by 140 basis points to 4.9 percent during the first quarter of 2007."

    RECENT HIGHLIGHTS
    -- Announced Proposed Acquisition of InfraSource Services, Inc. --
       On March 19, 2007, Quanta announced the signing of a definitive merger
       agreement under which the company intends to acquire InfraSource
       Services, Inc. in an all-stock transaction.  Under the terms of the
       merger agreement, approved by both Boards of Directors, InfraSource
       stockholders will receive 1.223 shares of Quanta common stock for each
       outstanding common share of InfraSource they own at closing.  The
       proposed combination of Quanta and InfraSource will create a leading
       specialized contracting services company serving the electric power,
       natural gas, telecommunications and cable television industries.  The
       transaction is expected to close in the third quarter of 2007 subject
       to satisfaction of customary closing conditions including stockholder
       and regulatory approvals.
    -- Secured Transmission Contracts -- During the quarter, Quanta secured a
       large number of contracts related to transmission infrastructure
       maintenance, repair and installation.  The largest of the contracts was
       a general service contract in the Northern United States with Kenny
       Construction Company.  The contract is for the installation of a 102-
       mile, 345,000-volt line for American Transmission Company. Work was
       initiated during the first quarter.
    -- Supported Emergency Restoration Efforts -- During the first quarter,
       numerous utilities in the Central United States were impacted by a
       series of winter storms that damaged distribution and transmission
       infrastructure.  Quanta deployed crews to help quickly restore power,
       clear damaged power lines, repair structures and install new lines
       where necessary.

OUTLOOK

The following statements are based on current expectations. These statements are forward-looking, and actual results may differ materially. These statements do not include the potential impact of the pending merger or any other transactions that could occur in the future. Factors affecting these forward-looking statements are detailed below.

Quanta expects revenues for the second quarter of 2007 to range from $550 million to $575 million and diluted earnings per share to be between $0.15 and $0.17.

Quanta Services has scheduled a conference call for May 3, 2007, at 9:30 a.m. Eastern Time. To participate in the call, dial (303) 262-2200 at least 10 minutes before the conference call begins and ask for the Quanta Services conference call. Investors, analysts and the general public also will have the opportunity to listen to the conference call over the Internet by visiting the company's web site at www.quantaservices.com. To listen to the call live on the web, please visit the Quanta Services web site at least fifteen minutes early to register, download and install any necessary audio software. For those who cannot listen to the live web cast, an archive will be available shortly after the call on the company's website. A replay will also be available through May 10 and may be accessed by calling (303) 590-3000 and using the pass code 11089143. For more information, please contact Karen Roan at DRG&E by calling (713) 529-6600. Reconciliations of non-GAAP to GAAP measures can also be found on the company's web site at www.quantaservices.com in the "Financial News" section.

Quanta Services, Inc. is a leading provider of specialized contracting services, delivering end-to-end network solutions for the electric power, gas, telecommunications and cable television industries. The company's comprehensive services include designing, installing, repairing and maintaining network infrastructure nationwide.

Additional Information and Where to Find It

These materials are not a substitute for the registration statement that was filed with the Securities and Exchange Commission (SEC) in connection with the proposed acquisition of InfraSource or the joint proxy statement/prospectus to be sent to stockholders. INVESTORS ARE URGED TO READ CAREFULLY THE FINAL JOINT PROXY STATEMENT/PROSPECTUS WHEN THE SEC DECLARES IT EFFECTIVE, AS IT WILL CONTAIN IMPORTANT INFORMATION, INCLUDING DETAILED RISK FACTORS. The registration statement and other documentation filed by Quanta and InfraSource may be obtained, free of charge, on the SEC's website (http://www.sec.gov). This press release does not constitute an offer to sell, or a solicitation of an offer to buy, any shares of Quanta or InfraSource common stock.

The final joint proxy statement/prospectus and such other documents (relating to Quanta) may also be obtained for free from Quanta's website at http://www.quantaservices.com or from Quanta by directing a request to Quanta Services, Inc., 1360 Post Oak Blvd., Suite 2100, Houston, TX 77056, Attention: Corporate Secretary, or by phone at 713-629-7600.

The final joint proxy statement/prospectus and such other documents (relating to InfraSource) may also be obtained for free from InfraSource's website at www.infrasourceinc.com or from InfraSource by directing a request to InfraSource Services, Inc., 100 W. Sixth Street, Media, PA 19063, Attention: General Counsel, or by phone at 610-480-8000.

Participants in the Solicitation

Quanta, InfraSource and their respective directors, executive officers and certain members of management and employees may be considered "participants in the solicitation" of proxies from stockholders in connection with the acquisition. Information about Quanta, InfraSource and their respective directors and executive officers and their ownership of securities will be set forth in the final joint proxy statement/prospectus.

Forward-looking statements

This press release (and oral statements regarding the subjects of this release, including the conference call announced herein) contains forward- looking statements intended to qualify for the "safe harbor" from liability established by the Private Securities Litigation Reform Act of 1995. Forward- looking statements include, but are not limited to, statements relating to projected revenues and earnings per share and other projections of financial and operating results, capital expenditures, growth in particular markets, benefits of the Energy Policy Act of 2005, strategies and plans and whether and when transactions contemplated by the merger agreement with InfraSource will be consummated, as well as statements reflecting expectations, intentions, assumptions or beliefs about future events, and other statements that do not relate strictly to historical or current facts. Although Quanta's management believes that the expectations reflected in such forward-looking statements are reasonable, it can give no assurance that such expectations will prove to be correct. These statements can be affected by inaccurate assumptions and by a variety of risks and uncertainties that are difficult to predict or beyond our control, including, among others, quarterly variations in operating results; adverse changes in economic conditions and trends in relevant markets; the ability to effectively compete for market share; potential failure of the Energy Policy Act of 2005 to result in increased spending on the electrical power transmission infrastructure; the failure to satisfy the conditions to the closing of the pending merger with InfraSource as contemplated by the merger agreement, including obtaining stockholder or regulatory approvals, or the failure to otherwise consummate the pending merger; unexpected costs or unexpected liabilities that may arise from the pending merger, whether or not consummated; the potential adverse impact to the businesses of the companies as a result of uncertainty surrounding the pending merger, including the inability to retain key personnel; the potential adverse effect of any conditions imposed in connection with consummation of the merger; the ability to successfully identify, complete and integrate acquisitions, including the pending merger with InfraSource; estimates and assumptions in determining financial results; the financial distress of Quanta's casualty insurance carrier that may require payment for losses that would otherwise be insured; potential exposure to environmental liabilities; liabilities for claims that are self-insured or for claims that Quanta's casualty insurance carrier fails to pay; potential liabilities relating to occupational health and safety matters; estimates relating to the use of percentage-of-completion accounting; dependence on fixed price contracts and the potential to incur losses with respect to these contracts; beliefs and assumptions about the collectibility of receivables; the inability of customers to pay for services; rapid technological and structural changes that could reduce the demand for services; the ability to obtain performance bonds; cancellation provisions within contracts and the risk that contracts are not renewed or are replaced on less favorable terms; the ability to attract skilled labor and retention of key personnel and qualified employees; the impact of a unionized workforce on operations and the ability to complete future acquisitions; potential shortage of skilled employees; growth outpacing infrastructure; potential exposure to environmental liabilities; risks associated with operating in international markets; requirements relating to governmental regulation and changes thereto; the ability to continue to meet the requirements of the Sarbanes-Oxley Act of 2002; the cost of borrowing, availability of credit, debt covenant compliance and other factors affecting financing activities; the ability to generate internal growth; the adverse impact of goodwill impairments; the potential conversion of outstanding convertible subordinated notes; and other risks detailed in Quanta's Annual Report on Form 10-K for the year ended December 31, 2006, and any other reports of Quanta filed with the Securities and Exchange Commission. Should one or more of these risks materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those expressed or implied in any forward-looking statements. You are cautioned not to place undue reliance on these forward-looking statements, which are current only as of this date. Quanta does not undertake and expressly disclaims any obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. For a discussion of these risks, uncertainties and assumptions, investors are urged to refer to Quanta's reports filed with the Securities and Exchange Commission (SEC) that are available through the company's web site at http://www.quantaservices.com or through the SEC's Electronic Data Gathering and Analysis Retrieval System (EDGAR) at http://www.sec.gov.

                             - Tables to follow -



                    Quanta Services, Inc. and Subsidiaries
                    Consolidated Statements of Operations
              For the Three Months Ended March 31, 2007 and 2006
                 (In thousands, except per share information)
                                 (Unaudited)


                                                 Three Months Ended March 31,
                                                      2007            2006
    Revenues                                        $574,880       $496,494
    Cost of services                                 496,474        437,046
     Gross profit                                     78,406         59,448
    Selling, general & administrative expenses        49,232         42,184
    Amortization of intangible assets                    772             91
     Income from operations                           28,402         17,173
    Interest expense                                  (5,552)        (5,884)
    Interest income                                    4,298          2,979
    Other, net                                            29            148
     Income before taxes                              27,177         14,416
     Provision (benefit) for taxes                    (4,027)         6,558
    Net income                                       $31,204         $7,858

    Earnings per share:
     Basic                                             $0.26          $0.07
     Diluted                                           $0.23(a)       $0.07

    Shares used in computing earnings per share:
     Basic                                           118,030        116,525
     Diluted                                         149,608(a)     117,058

    Non-GAAP measures:
    Adjusted net income                              $15,866            N/A
    Adjusted diluted earnings per share                $0.13 (b)        N/A

    Shares used in computing adjusted
     diluted earnings per share                      143,194 (b)        N/A

Note: The non-GAAP measures in this press release are provided to enable investors to evaluate quarterly performance excluding the effects of items that management believes impact the comparability of operating results between periods. The first quarter 2007 results include the effect of $15.3 million in tax benefits, or $0.10 per diluted share, primarily associated with a reduction in the allowance for tax contingencies due to the settlement of a multi-year audit by the Internal Revenue Service.

    (a) as a result of applying the if-converted method for calculating
        diluted earnings per share, shares have been adjusted assuming
        conversion of Quanta's 4.5% convertible subordinated notes and
        Quanta's 3.75% convertible subordinated notes, and net income has been
        adjusted by $3.2 million for the three months ended March 31, 2007,
        for an addback of related interest expense, net of tax.

    (b) In the non-GAAP measure, as a result of applying the if-converted
        method for calculating diluted earnings per share, shares have been
        adjusted assuming conversion of Quanta's 4.5% convertible subordinated
        notes, and net income has been adjusted by $2.3 million for the three
        months ended March 31, 2007, for an addback of related interest
        expense, net of tax.



                    Quanta Services, Inc. and Subsidiaries
                    Condensed Consolidated Balance Sheets
                                (In thousands)
                                 (Unaudited)


                                                    March 31,     December 31,
                                                       2007            2006

                      ASSETS

    Current Assets:
     Cash and cash equivalents                       $406,432       $383,687
     Accounts receivable, net                         467,209        507,761
     Costs and estimated earnings in excess of
      billings on uncompleted contracts                40,693         36,113
     Inventories                                       25,433         28,768
     Prepaid expenses and other current assets         31,222         34,300
      Total current assets                            970,989        990,629
    Property and equipment, net                       292,632        276,789
    Accounts and notes receivable, net                  7,322          7,815
    Other assets, net                                  33,232         32,642
    Other intangible assets, net                        6,281            787
    Goodwill, net                                     352,310        330,495
      Total assets                                 $1,662,766     $1,639,157


    LIABILITIES AND STOCKHOLDERS' EQUITY

    Current liabilities:
     Current maturities of long-term debt             $33,468        $34,845
     Accounts payable and accrued expenses            239,962        270,897
     Billings in excess of costs and estimated
      earnings on uncompleted contracts                23,460         28,714
       Total current liabilities                      296,890        334,456
    Convertible subordinated notes                    413,750        413,750
    Deferred income taxes and other non-current
     liabilities                                      176,690        161,868
       Total liabilities                              887,330        910,074
    Stockholders' equity                              775,436        729,083
       Total liabilities and stockholders' equity  $1,662,766     $1,639,157

    Contacts:    James Haddox, CFO          Ken Dennard / ksdennard@drg-e.com
                 Reba Reid                  Kip Rupp / krupp@drg-e.com
                 Quanta Services Inc.       DRG&E
                 713-629-7600               713-529-6600

SOURCE Quanta Services, Inc.