CORAL GABLES, Fla., Sept. 14 /PRNewswire-FirstCall/ -- MasTec, Inc. (NYSE: MTZ) today announced that its senior management will be making corporate presentations at the Jefferies & Company, Inc. 3rd Annual Communications and Media Conference and the D.A. Davidson 4th Annual Engineering and Construction Conference during the week of September 19th.

The Jefferies presentation will be at New York's Mandarin Oriental Hotel on Tuesday, September 20, 2005, at approximately 10:20am ET. For those unable to attend the presentation, it will be webcast live at http://www.wsw.com/webcast/jeff5/mtz, or it can be accessed through the investor relations section of MasTec's website at http://www.mastec.com.

The D.A. Davidson presentation will take place at San Francisco's Marriott Hotel on Thursday, September 22, 2005, at approximately 4:30pm ET. The presentation will also be webcast live at http://wsw.com/webcast/dadco4/mtz, and can be accessed through the investor relations section of MasTec's website.

The presentations will be available for replay through the MasTec website for an additional 30 days.

MasTec (http://www.mastec.com) is a leading communications, video, data, traffic and public utility infrastructure service provider. The Company designs, builds, installs, maintains, upgrades and monitors internal and external networks for leading companies and government entities.

This press release and any accompanying documents contain forward-looking statements, such as statements regarding MasTec's future growth and profitability, growth strategy, and anticipated trends in the industries and economies in which MasTec operates. The words "anticipate," "estimate," "should," "expect," "believe," "intend," "target," "project" and similar expressions are intended to identify forward-looking statements. These forward-looking statements are based on MasTec's current expectations and are subject to a number of risks, uncertainties, and assumptions, including that our revenue and profits may differ from that projected, that we may be further impacted by slowdowns in our clients' businesses or in the economy in general, that our reserves for receivables may be inadequate and that we may experience increased costs associated with realigning our business or may be unsuccessful in those efforts. Should one or more of these risks or uncertainties materialize, or should the underlying assumptions prove incorrect, actual results may differ significantly from results expressed or implied in any forward-looking statements made by MasTec in this press release. These and other risks are detailed in this press release and/or documents filed by MasTec with the Securities and Exchange Commission. MasTec does not undertake any obligation to revise these forward-looking statements to reflect future events or circumstances.

SOURCE MasTec, Inc.

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

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