Waste Services to Announce Fourth Quarter and 2007 Results on Feb. 27

Date: February 26, 2008

Source: Waste Services, Inc.

Waste Services Announces Conference Call for Fourth Quarter and 2007 Results

Waste Services, Inc. WSII today announced that it will release its 2007 fourth quarter results after the close of markets on Wednesday, February 27, 2008 and hold a conference call on Thursday, February 28, 2008 at 8:30 a.m. (EST). A copy of the fourth quarter press release will be available on our website after its release. Our Chief Executive Officer, David Sutherland-Yoest, accompanied by other senior management, will discuss the company's fourth quarter results.

If you wish to participate on this call, please phone 800-901-5231 (US and Canada) or 617-786-2961 (International) and enter passcode number 88969942. To hear a web cast of the call over the Internet, access the home page of the Waste Services website at www.wasteservicesinc.com. A replay of the call will be available until March 13, 2008 by phoning 888-286-8010 (US and Canada) or 617-801-6888 (International) and entering passcode number 74513469. The web cast will also be available on the company's website.

Waste Services, Inc., a Delaware corporation, is a multi-regional integrated solid waste services company that provides collection, transfer, disposal and recycling services in the United States and Canada. The company's web site is www.wasteservicesinc.com. Information on the company's web site does not form part of this press release.

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