Cullen Heating & Air Conditioning has been providing quality service for homes and businesses since 1970 in Oshawa, Port Perry and the surrounding area.

As your Durham Region heating and air conditioning specialists, we offer a number of HVAC services to keep you and your family comfortable year-round. Whether it be heating, cooling, or taking care of the air you breathe – we can do it all!

Award-Winning Service:

We’re also listed with the Better Business Bureau. We have maintained an A+ rating and have been accredited since September 2010.