DeMark Home Ontario
HVAC contractor in Toronto, ON.
In DeMark Home Ontario's own words
ONTARIO’S LEADING HVAC CONTRACTOR DeMark Home Ontario Inc is HRAI certified, customer focused company that provides high quality HVAC products and services to residential customers in Ontario. We are locally owned and operated company who strives to provide customers with the best furnace, boilers, air conditioning, hot water heater, tankless, heat pump. We offer the highest quality products for rent to own, finance or purchase at the most competitive prices. DeMark Home Ontario servicing area for HVAC-furnaces, air conditioners, heat pumps, hot water heaters, tankless units includes: Toronto, Richmond Hill, Brampton, Mississauga, Milton, Hamilton, Scarborough, Ajax, Pickering, Oshawa, Vaughan, Markham, Newmarket, Barrie, Ottawa and more.
- Trade
- HVAC contractor
- Business address
- Toronto, ON
- Telephone
- (647) 847-2998
- Website
- dhontario.com
- Hours
-
- MondayOpen 24 Hours
- TuesdayOpen 24 Hours
- WednesdayOpen 24 Hours
- ThursdayOpen 24 Hours
- FridayOpen 24 Hours
- SaturdayOpen 24 Hours
- SundayOpen 24 Hours
From the business's Google listing, checked Oct 2026
- Register
- ON register
Recorded as supplied and as found in public sources. This register makes no credential or quality claim about any business; check license status with the provincial licensing body.
Google Reviews
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Greatest job
Tommy N.
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My water heater was out of order for a few days. I was happy to find Demark Home Ontario online and they did replacement job of broken heater less than 24 Hrs with great quality from office ( thanks to Mike ) up to installers. Old heater has been removed, place cleaned properly too. Nice job!
Leonid O.
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We needed a replacement for our power vent gas water heater and Mike of DeMark Home provided a very good quote for a Bradford White model after submitting photos of our old tank setup. The installation was done the next day by Reza and his assistant who arrived on time and did a fine job in an hour's time (though we were booked for a few hours). Everyone was courteous and professional and communication with Mike was excellent at all times.
N H.
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I had a great experience getting Rinnai tankless water heater from DeMark Home. Sales manager was very professional, explained all the options, walked through warranty details, and arranged swift installation. Installers came on time and replaced my old unit in just 2 hours. Definitely would recommended.
vlad R.
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Fast response, planning and quote, professional install and service, excellent price.
Jurgen G.
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The service was professional and Mike and the team went above and beyond. I forgot to let them know that the old water heater was a reliance rental needed to be returned. Reliance has so many rules just to get money out of you. They were able to retrieve the old one and send it back to reliance per their instructions. Such a relief to work with such competent people that really go above and beyond.
brand S.
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I recently had DeMark Home Ontario install a tankless water heater. The overall experience was great. Mike was very helpful answering all the questions and concerns on the phone. The installers did a great job with the installation.
Tom
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Excellent service from start to finish! Mike arranged the water heater installation the same day, and everything was handled quickly and professionally. Great communication, reliable service, and a job well done. Highly recommended!
Darth V.
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Demark Home is reliable and highly professional. They guide you honestly and professionally with the appropriate equipment for your heating and cooling requirements to suit your home.
Lance F.
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Very happy with my experience with DeMark Home Ontario! I spoke with them in the morning about replacing our water heater, and they took the time to go over all the details and answer my questions. Everything was confirmed quickly, and by the afternoon our new Bradford White water heater was already installed. The whole process was smooth, professional and surprisingly fast, from the first conversation to the completed installation. Great communication, great service, and no unnecessary hassle. It’s not often you can make a call in the morning and have everything taken care of the same day. 😊 I would definitely recommend DeMark Home Ontario!
Elena C.
About DeMark Home Ontario
Heat pumps, water heaters and HVAC maintenance
DeMark Home Ontario names heat pumps among its work, alongside air conditioning, furnace work, hot-water equipment, tankless units, repairs, maintenance and annual tune-ups. The company describes work for residential customers and also identifies commercial water heaters. It offers HVAC financing and says 24/7 service is available in Toronto and the GTA.
Toronto’s 1981-2010 temperature normals are 9.4°C mean, 12.9°C high and 5.8°C low, per Environment Canada normals. The company’s stated equipment range includes furnaces, boilers, air conditioners, heat pumps, conventional water heaters and tankless units.
DeMark Home Ontario’s rating and round-the-clock hours
Reviewers most often mention quick water-heater replacements, clear communication, punctual installation crews, equipment options and clean-up after the job.
The business is open 24 hours a day, seven days a week. DeMark Home Ontario also names rent-to-own water-heater options alongside purchase and financing.
The company says it is HRAI certified and is a member of Natural Resources Canada and the Heating, Refrigeration and Air Conditioning Institute of Canada.
Services, brands and warranty details come from the company's own website. Ratings, hours and reviews come from Google. Town figures come from Statistics Canada and Environment Canada.
More HVAC contractors in Toronto
About Toronto
| Population | 2,794,356 (2021) |
|---|---|
| Average yearly snowfall | 121.4 centimetres |
Sources: Statistics Canada, 2021 Census. Environment and Climate Change Canada, Canadian Climate Normals 1981-2010.