Quanta Services Announces Fourth Quarter & Full Year 2009 Earnings Release and Conference Call Schedule

HOUSTON, Feb. 16 /PRNewswire-FirstCall/ -- Quanta Services, Inc. (NYSE: PWR) announced today that it will release 2009 fourth quarter and full year results on Monday, Feb. 22, 2010, before the market opens. In conjunction with the release, Quanta has scheduled a conference call which will be broadcast live over the Internet on Monday, Feb. 22, 2010, at 9:30 a.m. Eastern time.

What: Quanta Services 2009 Fourth Quarter & Full Year Earnings Conference Call

When: Monday, Feb. 22, 2010 – 9:30 a.m. Eastern time

How:  Live via phone – By dialing (480) 629-9820 and asking for the Quanta
      Services call at least 10 minutes prior to the start time.



      Live over the Internet – by logging on to the Web site at the following
      address:

      www.quantaservices.com

For those who cannot listen to the live call, a telephonic replay will be available through March 1, 2010, and may be accessed by calling (303) 590-3030 and using the pass code 4233173#. Also, an archive of the webcast will be available shortly after the call on the company's Web site at www.quantaservices.com. For more information, please contact Karen Roan at DRG&E at 713-529-6600 or email kcroan@drg-e.com.

Quanta Services is a leading specialized contracting services company, delivering infrastructure solutions for the electric power, natural gas and pipeline, telecommunications and cable television industries. The company's comprehensive services include designing, installing, repairing and maintaining network infrastructure nationwide. Additionally, Quanta provides dark fiber construction and licensing in select markets and offers related design, procurement, construction and maintenance services.  With operations throughout North America, Quanta has the manpower, resources and expertise to complete projects that are local, regional, national or international in scope.

Contacts: James Haddox, CFO     Kip Rupp / krupp@drg-e.com

          Reba Reid             Ken Dennard / ksdennard@drg-e.com

          Quanta Services, Inc. DRG&E

          713-629-7600          713-529-6600

SOURCE Quanta Services, Inc.