SAN FRANCISCO – August 3, 2005 - ABM Industries Incorporated (NYSE:ABM) today announced the sale of its water treatment business to San Joaquin Chemicals, Incorporated for $0.5 million, of which $0.25 million is in the form of a note and $0.25 million in cash. The water treatment business represented the portion of ABM’s mechanical operations that remained after the previously announced sale of CommAir Mechanical Services to Carrier Corporation, a wholly owned subsidiary of United Technologies Corporation. ABM realized a pre-tax gain of approximately $21 million that will be included in the third quarter of 2005 from the disposition of all but the water treatment operation.

About ABM Industries:

ABM Industries Incorporated is among the largest facility services contractors listed on the New York Stock Exchange. With fiscal 2004 revenues in excess of $2.4 billion and more than 73,000 employees, ABM provides janitorial, parking, security, engineering and lighting services for thousands of commercial, industrial, institutional and retail facilities in hundreds of cities across the United States and British Columbia, Canada. The ABM Family of Services includes ABM Janitorial; Ampco System Parking; ABM Security Services, which includes American Commercial Security Services (ACSS) and Security Services of America (SSA); ABM Facility Services; ABM Engineering; and Amtech Lighting Services.

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