DeMark Home Ontario is happy to assist you with any questions or enquiries regarding your home heating and cooling equipment.
Call us anytime at 647-847-2998 or fill out our online enquiry form and one of our friendly staff will get back to you as soon as possible.
By Phone
Toronto GTA: (647) 847-2998
Toll-Free: 1-855-998-2998
Barrie: (705) 999-6575
Niagara Falls: 1-855-998-2998
By Regular Mail
Head Office
4255 WESTON RD unit-B
Toronto, ON M9L1W8
Canada

We’re licensed by the Technical standards & safety authority (TSSA), the Electrical Safety Authority (ESA) as well as SaveOnEnergy, the Ontario Energy Board (OEB) and the Independent Electricity System Operator (IESO).
We’re proud members of Natural Resources Canada / Government of Canada and the Heating, Refrigeration and Air conditioning Institute of Canada (HRAI).
We are an Enbridge participating company and all of our technicians are fully bonded and insured with full adherance to WSIB guidelines.
Questions?
by calling (647) 847-2998 or filling out our easy form.
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, Peterborough, Ottawa and more. For a full servicing area please click here.