Quanta Services Announces 2009 First Quarter Earnings Release and Conference Call...

Quanta Services Announces 2009 First Quarter Earnings Release and Conference
Call Schedule

HOUSTON, April 29 /PRNewswire-FirstCall/ -- Quanta Services, Inc. (NYSE: PWR)
announced today that it will release 2009 first quarter results on Wednesday,
May 6, 2009, 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, May 6, 2009, at 9:30 a.m. Eastern time.

What: Quanta Services 2009 First Quarter Earnings Conference Call
When: Wednesday, May 6, 2009 - 9:30 a.m. Eastern time
How: Live via phone - By dialing (480) 629-9678 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 at the
following address:
http://www.quantaservices.com

For those who cannot listen to the live call, a telephonic replay will be
available through May 13, 2009, and may be accessed by calling (303) 590-3030
and using the pass code 4064181#. Also, an archive of the webcast will be
available shortly after the call on the company's website 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 network solutions for the electric power, natural
gas, 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 leasing 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 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.

James Haddox, CFO, or Reba Reid, both of Quanta Services Inc.,
+1-713-629-7600; or Ken Dennard, ksdennard@drg-e.com, or Kip Rupp,
krupp@drg-e.com, both of DRG&E, +1-713-529-6600