Cooling Tower Maintenance™ is part of the D’Arcy Sweeney Limited (DSL) Group of Companies. The DSL Group has been servicing the Canadian HVAC industry, initially as the Trane franchise holder, from 1959-1994 specializing in chilled water and industrial plants in some of the largest facilities in Canada. Cooling Tower Maintenance Inc. was started in 1976 and acquired by the DSL Group in 1988; we specialize in the business of engineering, installing, rebuilding and servicing cooling towers for commercial, institutional, industrial, manufacturing and residential markets in Canada. Over the years, we expanded into Humidification and portable air conditioning rentals. Today, Cooling Tower Maintenance Inc. operates nationally through its offices in Mississauga and Calgary.
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