MasTec Schedules Third Quarter 2009 Earnings Release and Conference Call

October 15, 2009

CORAL GABLES, Fla., Oct. 15 /PRNewswire-FirstCall/ -- MasTec, Inc. (NYSE: MTZ) today announced that it will release results of operations for the quarter ended September 30, 2009 after the market closes on Wednesday, October 28, 2009. Senior Management will also hold a conference call to discuss these results on Thursday, October 29, 2009 at 9:00 a.m. Eastern time.

The call-in number for the conference call is (913) 312-0705 and the replay number is (719) 457-0820, with a pass code of 1744552. The replay will run for 30 days. Additionally, the call will be broadcast live over the Internet and can be accessed and replayed through the investor relations section of the Company's website at www.mastec.com.

MasTec is a leading specialty contractor operating mainly throughout the United States across a range of industries. The Company's core activities are the building, installation, maintenance and upgrade of utility and communications infrastructure, including electrical utility transmission and distribution, wind farms, solar farms, other renewable energy and natural gas infrastructure, wireless, wireline, satellite communication and water and sewer systems. The Company's corporate website is located at www.mastec.com.

SOURCE MasTec, Inc.

J. Marc Lewis, Vice President-Investor Relations, +1-305-406-1815, +1-305-406-1886 fax, marc.lewis@mastec.com