What: Quanta Services Second Quarter 2012 Earnings Conference Call When: Thurs., Aug. 2, 2012 – 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 website at the following address: www.quantaservices.comFor those who cannot listen to the live call, a telephonic replay will be available through Aug. 9, 2012, and may be accessed by calling (303) 590-3030 and using the pass code 4555817#. 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 Kip Rupp at Quanta Services at (713) 341-7260. 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 throughout North America. 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 and in select international markets, Quanta has the manpower, resources and expertise to complete projects that are local, regional, national or international in scope. Contacts: Investors: Kip Rupp, CFAMedia: Reba ReidQuanta Services, Inc.(713) 629-7600 SOURCE Quanta Services, Inc.