About Us

DC Air HVAC Contractor in Mississauga
A cornerstone of the New Residential HVAC industry since 1969, DC Air (Dearie Contracting Inc.) has provided people comfort throughout southern Ontario and greater Ottawa region for over 50 years. DC Air can help with large scale new residential projects and provide insight and guidance to home owners looking to replace older equipment, provide maintenance, or install upgraded equipment in your house.

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What We Do

Currently, DC Air stretches across Ontario working on sites in Mississauga, Milton, Ajax, Newmarket, Niagara, Woodstock, Cambridge, Kitchener, and more. Here at DC Air we can always keep it cool while bringing the heat.

Services we offer include:

Our Process


With a large shop and back warehouse, we are able to produce anything and everything in terms of sheet metal.


After Fabrication, we deliver the required material to the proper lot for installation.


Prior to delivery, the house is roughed in by one of our unionized R/I crews. Once the material is made and delivered, we send a unionized sheet metal worker to install the duct work.

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The two traits that best describes DC Air’s values! We aim to provide top quality services in a timely manner. No matter the size of project or time required, DC Air will ensure the end product reflects our values, and yours. Contact us today if you’re interested in working with us or want more information.