Toronto Head Office
4255 Weston Rd, Unit – B
Toronto, Ontario, M9L 1W8
647-847-2998
1 (855) 998-2998
Barrie Location
City of Barrie
(705) 999-6575
1 (855) 998-2998
Niagara Falls Area
City of Niagara Falls
(647)847-2998
1 (855) 998-2998
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Service Area
DeMark Home Ontario servicing area for HVAC-furnaces, air conditioners, heat pumps, hot water heaters, tankless units includes: Toronto, GTA, Vaughan, Mississauga, Brampton, Markham, Scarborough, Milton, Burlington, Niagara Falls, Oshawa, Pickering, Ajax, Aurora, Newmarket, Barrie and more. For a full servicing area please click here.