This guide compares 16 HVAC companies serving Ottawa. The featured shortlist includes Ottawa Equal Air, Francis Home Environment, and Anchor Home Comfort. Listings claimed by their owner appear first; all other positions follow the published rating methodology. 16 carry a sourced public rating, averaging 4.7 stars; the highest-rated is Francis Home Environment at 4.9 stars from 6840 Google reviews.
The best furnace repair and HVAC companies in Ottawa answer the phone at minus 25 and get a dead furnace running the same day. Beyond emergencies, they install and service furnaces, air conditioners, and heat pumps sized correctly for our long heating season, and many handle duct cleaning too. The companies below cover furnace and AC repair, new installs, heat pump conversions, maintenance plans, and emergency service across the city. Each is a licensed, currently-operating Ottawa business with public reviews, so you can confirm licensing and emergency availability before you need it.
Also covers: Furnace repair · AC repair · Heating & cooling · Furnace maintenance · Duct cleaning
Featured professionals
A focused Ottawa shortlist. Listings claimed by their owner appear first; all other positions follow our published rating methodology.
Listings claimed by their owner appear first. All other positions follow the selected sort.
ClaimedNepean +4
4.7(64)on GoogleChecked Aug 2026HVACOttawa HVAC company servicing furnaces, air conditioners, and gas systems for residential and commercial clients, with 24-hour emergency service, since 2006.
View Ottawa Equal Air
FeaturedKanata +7
4.9(6,840)on GoogleChecked Aug 2026HVACOwner-led Ottawa HVAC and services company (based in the Nepean area) offering heating, cooling, indoor air quality, water heaters, duct cleaning and plumbing, with 24-hour emergency service. Carries one of the largest review bases of any HVAC firm in the city (roughly 8,000 reviews at 4.9 stars).
View Francis Home Environment
FeaturedGloucester
4.9(3,956)on GoogleChecked Aug 2026HVACEstablished Ottawa services company (based in Gloucester) covering HVAC, plumbing and electrical, including furnaces, air conditioners, heat pumps, boilers and water heaters, with installation, maintenance and repair. BBB-accredited since 1994 and serving the region for over 35 years.
View Anchor Home Comfort
FeaturedKanata +7
4.9(1,341)on GoogleChecked Aug 2026HVACOttawa heating and cooling company operating since 2003 that handles furnace and AC repair and installation, heat pumps, boilers, water heaters, gas fireplaces and air quality systems across the Greater Ottawa area. BBB-accredited with an A+ rating.
View Ottawa Home ServicesMore hvac
Kanata
4.9(1,136)on GoogleChecked Aug 2026HVACFamily-owned Ottawa HVAC company based in Kanata that installs and services furnaces, air conditioners, heat pumps and ductless systems, with a focus on energy-efficient systems and rebates. Holds an A+ BBB rating and a large review base (over 1,000 reviews).
View AirZone HVAC Services
Kanata +7
4.4(188)on GoogleChecked Aug 2026HVACOttawa-based heating and cooling contractor specializing in HVAC design and installation for new builds and retrofits, including furnaces, air conditioners, hot water tanks, humidifiers and air cleaners. A Lennox Premier Dealer.
View Ambassador Dearie HVAC
Draft Control Heating & Cooling Inc is an HVAC contractor in Carlsbad Springs, Ottawa offering air conditioning repair and furnace repair. Rated 4.9 from 68 Google reviews.
View Draft Control Heating & Cooling Inc
Kanata +7
4.7(6,311)on GoogleChecked Aug 2026HVACThe Ottawa location of national services provider Enercare, offering AC and furnace installation, rentals, heat pumps, water heaters, water treatment, plumbing, duct cleaning and fireplaces. Based on Thurston Drive in Ottawa. Reviews reflect a national aggregate, and local service feedback is mixed.
View Enercare Ottawa
Barrhaven +6
4.7(133)on GoogleChecked Aug 2026HVACGas Man Ottawa is an HVAC contractor in Greely, Ottawa offering air conditioning, furnace repair and heating. Rated 4.7 from 133 Google reviews.
View Gas Man Ottawa
Barrhaven +4
4.5(25)on GoogleChecked Aug 2026HVACGillani Heating & Appliance Care Inc. is an HVAC contractor in Ottawa offering air conditioning, air conditioning repair and furnace repair. Rated 4.5 from 25 Google reviews.
View Gillani Heating & Appliance Care Inc.
Kanata +7
4.7(432)on GoogleChecked Aug 2026HVACFourth-generation, family-owned Ottawa HVAC company with over a century in the community (founded 1923). Services furnaces, air conditioners, heat pumps, boilers, water heaters, fireplaces and ductwork.
View J.C. Robinson & Sons Ltd.Nepean
4.7(35)on GoogleChecked Aug 2026HVACOAR Commercial Kitchen Services is an HVAC contractor in Nepean, Ottawa. Rated 4.7 from 35 Google reviews.
View OAR Commercial Kitchen Services
Kanata +7
4.9(207)on GoogleChecked Aug 2026HVACFamily-owned Ottawa HVAC and electrical company handling furnace and boiler heating, central air conditioning, ductless systems, heat pumps, water heaters and indoor air quality. Past HomeStars Best-of and 2017 Consumer Choice Award winner, and a Lennox Premier Dealer.
View Reliable Home Environment
ClaimedGloucester +1
4.9(1,183)on GoogleChecked Aug 2026HVACLong-established family-run HVAC contractor in Ottawa's east end (Gloucester) that installs and services furnaces, air conditioners, heat pumps, boilers, water heaters and fireplaces. Carries a large base of positive reviews.
View Rick Menard Heating & Cooling
Kanata +1
4.1(216)on GoogleChecked Aug 2026HVACEstablished west-end Ottawa HVAC company (Kanata/Stittsville) operating since 1994, providing furnace and air conditioning installation, maintenance and repair, plus a Kanata showroom for gas fireplaces. BBB-accredited.
View Team Harding
Barrhaven +7
5.0(125)on GoogleChecked Aug 2026HVACTempzone Hvac is an HVAC contractor in Ottawa. Rated 5 from 125 Google reviews.
View Tempzone HvacBuyer guide
What separates a great HVAC company from a cheap quote, and the questions worth asking before you sign.
A furnace or heat pump that is oversized short-cycles and wears out early. A good Ottawa installer does a heat-loss calculation for your home rather than matching the old unit's number.
Cold-climate heat pumps now work through Ottawa winters and can cut energy costs. Rebate programs change year to year; ask which current federal or provincial rebates your project qualifies for.
Gas and HVAC work is licensed in Ontario. Confirm the company is licensed and pulls the required permit, and get the model numbers and warranty in writing.
An annual tune-up before winter catches worn parts before they fail on the coldest night. Ask what a maintenance plan covers and whether it includes priority emergency service.
Common questions
For homeowners
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