Founded in 1957, Guaranteed Industries Limited leads the way as one of Montreal's most innovative air conditioning and ventilation contractors.

Guaranteed Industries designs, installs and services systems for the commercial, industrial and residential sectors with 40 vehicles on the road delivering 24/7 service. Our engineers and designers are committed to providing the ultimate in climate control comfort, utilizing the most advanced technology including geo-thermal and environmentally friendly products.

Additional services are available through our affiliated companies AirQualité Ltd. for duct cleaning and air quality analysis and Dynapompe Inc. for pump and motor repair, service and system design.