For nearly 50 years Ontario Heating Ltd has served residential and commercial heating and air conditioning contractors, dealers and technicians in the GTA. We are specialists in the fabrication of a full line of HVAC sheet metal products, consisting of round and rectangular ventilation fittings and ductwork that range in size from 30 gauge to 10 gauge in various types of metals, including galvanized, satin coat, stainless steel, aluminum and copper. Our highly trained staff utilize computerized technology and state-of-the-art machinery to offer same day turnaround. Some of the services provided by Ontario Heating include: Spiro Pipe, Fitting Fabrication, Sheet Metal Fabrication & OEM and Universal Service Parts. In addition to providing expert fabrication services Ontario Heating Ltd is a complete wholesaler / distributor for all types of HVAC products, parts and accessories. Our product line includes the industry's leading manufacturers, with a full selection of original equipment. more... See more text