MasTec Senior Management to Present at the D.A. Davidson Engineering and Construction Conference

September 14, 2006

CORAL GABLES, Fla., Sept. 14 /PRNewswire-FirstCall/ -- MasTec, Inc. (NYSE: MTZ) today announced that its senior management will be making a corporate presentation at the D.A. Davidson Engineering and Construction Conference in San Francisco on September 21st at approximately 12:15pm ET. The presentation will be webcast live at http://www.wsw.com/webcast/dadco7/mtz/, or it can be accessed through a link on the investor relations page of MasTec's website at www.mastec.com. The presentation will also be available for replay on the MasTec website for an additional 30 days.

MasTec (www.mastec.com) is a leading specialty contractor operating throughout the United States and in Canada across a range of industries. The Company's core activities are the building, installation, maintenance and upgrade of communication and utility infrastructure systems.

SOURCE MasTec, Inc.

CONTACT: J. Marc Lewis, Vice President-Investor Relations of MasTec, Inc., +1-305-406-1815, or fax, +1-305-406-1886, or marc.lewis@mastec.com