Quanta Services Announces Second Quarter 2011 Earnings Release and Conference Call Schedule

HOUSTON, July 27, 2011 /PRNewswire/ -- Quanta Services, Inc. (NYSE:PWR) announced today that it will release second quarter 2011 results on Wednesday, August 3, 2011, before the market opens. In conjunction with the release, Quanta has scheduled a conference call which will be broadcast live over the Internet on Wednesday, August 3, 2011, at 9:30 a.m. Eastern time.

What: Quanta Services Second Quarter 2011 Earnings Conference Call

When: Wednesday, August 3, 2011 – 9:30 a.m. Eastern time

      Live via phone – By dialing (480) 629-9771 and asking for the Quanta
How:  Services call at least

      10 minutes prior to the start time.

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

      www.quantaservices.com

For those who cannot listen to the live call, a telephonic replay will be available through August 10, 2011, and may be accessed by calling (303) 590-3030 and using the pass code 4458904#. 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 Kip Rupp at Quanta Services at 713-629-7600.

Quanta Services is a leading specialized contracting services company, delivering infrastructure solutions for the electric power, natural gas and pipeline and telecommunications industries.  The company's comprehensive services include designing, installing, repairing and maintaining network infrastructure nationwide.  Additionally, Quanta provides point-to-point fiber optic telecommunications infrastructure 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:

          Investors: Kip Rupp, CFA: V.P., Investor Relations

          Media: Reba Reid: Director of Communications

          Quanta Services, Inc.

          713-629-7600

SOURCE Quanta Services, Inc.