The experts in Montreal for duct cleaning & complete HVAC system maintenance
AirQualité Ltd. is a division of Guaranteed Industries, Montreal’s largest and most innovative air conditioning and ventilation contractor since 1957. AirQualité is an accredited member of NADCA (National Air Duct Cleaners Association) and CAA Habitation, providing the highest standards for ventilation cleaning methods, indoor air quality, safety and applicable codes.
AirQualité services and products include duct cleaning, air quality analysis, dryer vent cleaning, air purification systems and air exchangers.
Our qualified technicians identify, measure and verify indoor contaminates, develop and implement a comprehensive air duct cleaning treatment, decontaminate bacterial build-up, test and analyse air quality problems, check your building's temperature, humidity, air circulation, carbon monoxide levels, infiltration of exterior pollutants, carbon dioxides, ozone and formaldehyde.
With 40 service vehicles on the road 24/7, Guaranteed Industries specializes in the design, installation, service and maintenance of HVAC systems for the commercial, industrial, residential and institutional sectors.


