Keystone Mechanical Group Inc.
Residential, Commercial & Industrial HVAC Services
We serve clients across Toronto, Mississauga, Brampton, Oakville, Burlington, Milton, Vaughan, Woodbridge, Concord, Thornhill, Richmond Hill, Markham, Scarborough, North York, Etobicoke, Pickering, Ajax, and Newmarket, Ontario.
Contact Keystone Mechanical Group Inc. - HVAC Company in Toronto, ON
K H DAVIS
I found this company on the web and I have not regretted it since. I hired them to do a complete HVAC system in my home. Nando was the person who came out, for the site survey and within a week they installed all the equipment. READ MORE
Replace Central Air Conditioning System
Our small office central air conditioning system failed and Nando and his team responded promptly with quote and quick turnaround. We are Engineers and Contractors ourselves and we have had Keystone help with several projects over the past few years and we can attest to their competence and professional manner READ MORE
Keystone completed an unexpectedly difficult install of a fireplace at my home. They went above and beyond to make the install work - running a new gas line when they couldn't tee off an existing one, and installing the exhaust vent in such a way that it minimized the protrusion into the living space.READ MORE