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Dion Comfort

HVAC contractor in Ottawa, ON.

In Dion Comfort's own words

Dion Comfort Heating and Cooling Ltd. specializes in the installation, distribution and service of air conditioning, heating and ventilation products. We are Ottawa’s one stop shop for all of your HVAC needs. Dion Comfort also offers 24/7 emergency support, so you are never stuck should an emergency situation arise. Ensure you and your family are always safe and comfortable. Call us today to book your no obligation estimate, our friendly professional staff are ready to help.

Trade
HVAC contractor
Business address
Ottawa, ON
Telephone
(613) 301-1333
Website
dioncomfort.com
Hours
  • Monday7:30 am - 4:00 pm
  • Tuesday7:30 am - 4:00 pm
  • Wednesday7:30 am - 4:00 pm
  • Thursday7:30 am - 4:00 pm
  • Friday7:30 am - 4:00 pm
  • SaturdayClosed
  • SundayClosed

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

5.0 (181)

  • The service was wonderful! The technician was very friendly & knowledgeable. I would highly recommend choosing Dion Heating & Cooling for all you're HVac needs.

    Sherry D.

  • "Adam was very helpful and completed the work effectively and efficiently.".

    Danielle V.

  • Our Hot Water Tank was not working. Contacted Dee in the morning and she managed to arrange to have her technician arrive within a couple of hours.The technician was great. He diagnosed the problem and completed the repair shortly after that. I have always had a great experience with Dion Comfort. I would highly recommend them.

    Glen R.

  • We are long time clients of Dion Comfort. If you value quality service, price and exceptional communication, they are your go to provider in our experience. We have, and will continue to, refer them to any of our friends and family. Simply one of the best and honest HVAC companies around town! Thanks Dee and the Team! Rob and Eleanor Orleans

    Rob W.

  • Overall, I'm very happy, Too bad the tank is a little wider than my old one and my original pan is a tight fit now. The manual's drawings show a 1" minimum clearance that the warranty refers to for water damage claims, so I may end up having difficulties if the tank ever leak during the warranty period and end up having property damage. I just wish the installers would’ve had pans on hand to sell.

    Ben T.

  • “Very responsive and provided excellent advice. The technical team were also very efficient from the moment they came in all the way to the commissioning. Very impressed with this company. I recommend them without hesitation.".

    Daniel C.

  • "Excellent service from quote to completed job. Technicians were knowledgeable and kind. Recommend!".

    Lana D.

  • I needed help with my AC today and was very pleased to have Eric from Dion Comfort come to my rescue. He zeroed in on the problem very quickly, put the system back in order. On Time, courteous and very professional. And I learned a few things today. Many thanks

    northofman

  • Reliable, efficient, and always helpful. Eric solved our aircon problem quickly and left me knowing a lot more about my system. We have used Dion for years and will choose them again in the future! Thanks.

    Peter L.

  • I couldn't be happier with my experience with Dion. Every single person I spoke to was kind, polite and professional. The technicians showed up early and worked quickly to install my new air conditioner and they were so friendly the entire time they were in my home. I genuinely couldn't recommend Dion enough, the entire process was a pleasure.

    Amanda T.

Read all reviews on Google

About Dion Comfort

Dion Comfort’s heating, cooling and ventilation work

Dion Comfort specializes in installing, distributing and servicing air-conditioning, heating and ventilation products. The company says it handles residential and commercial HVAC work in Ottawa, including installation, maintenance and repair.

Its stated service work includes air conditioning, heat pumps, furnace repair, HVAC repair and indoor air quality concerns. Dion Comfort also describes annual furnace and air-conditioner inspections and tune-ups as part of ongoing equipment maintenance.

Emergency repair and equipment maintenance

The company offers emergency support for HVAC problems, including heat-pump emergencies, furnace issues involving no heat or flame sensors, and air-conditioner faults such as a non-running unit or compressor problem. Dion Comfort also offers commercial HVAC maintenance and commercial HVAC installation.

Dion Comfort is a Rheem Pro Partner. Its hours run Monday through Friday, 7:30 am to 4:00 pm.

Ottawa feedback for Dion Comfort

Reviewers most often mention responsive scheduling, clear communication, knowledgeable technicians, efficient repairs and installations, and courteous service from the office and field teams.

Some reviews describe quick help with failed hot-water equipment or air conditioning, while others mention work from estimates through commissioning or installation. One reviewer noted that a replacement water tank’s wider size left little room in an existing pan, an issue raised after installation.

Ottawa’s Environment Canada normals for 1981-2010 show a mean temperature of 6.4 degrees Celsius, with an average high of 11.3 degrees Celsius and average low of 1.4 degrees Celsius.

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 Ottawa

About Ottawa

Population1,017,449 (2021)
Average yearly snowfall223.5 centimetres

Sources: Statistics Canada, 2021 Census. Environment and Climate Change Canada, Canadian Climate Normals 1981-2010.