Best HVAC Contractors in Kitchener, ON
24 companies listed · all 24 in Kitchener · 15 open 24/7 · 18 open weekends · 21 rated 4.5+
Data verified October 21, 2026
Unique Air
Able Air Conditioning & Heating
Total Aire Care Inc.
Arthur's Heating & Cooling
Air Comfort Mechanical Inc.
The 24 companies listed for Kitchener, ON handle furnaces and heat pumps in winter and the cooling side in summer. Profiles repeat what each firm publishes about hours, licensing and brands, with ratings and review quotes gathered from public reviews.

Area overview: Kitchener, ON
All 24 companies we list here are in Kitchener itself. We have 28 companies in Kitchener on file; this page shows the highest-rated 24. The companies on this page are rated from 3.7 to 5.0 across 15,469 reviews; 13 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (81%), responsiveness (81%) and quality (68%). The topics that come up most in reviews of the companies on this page are "price", "estimates" and "efficient". 15 are open around the clock; 18 are open on Saturdays and 17 on Sundays. The services the companies on this page list most often on their websites are water heater (3), cooling (2) and furnace (2). 3 show a licence on their websites. Domain records put 2 websites of the companies on this page at ten or more years old; the oldest dates from 2009. 19 offer emergency call-outs; 5 offer financing or payment plans; 9 give free estimates; 4 are family- or locally-owned and 6 list coupons or special offers. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Do any heating firms listed for Kitchener work on Saturdays or Sundays?
Saturday or Sunday hours show up for 18 of the 24 companies on this page. Saturday is mostly repair work; installations land on weekdays, because supply houses and municipal inspectors keep weekday hours.
Infiniti Air Conditioning & Heating
Air Expert Home Comfort Inc
Regional Air
Aire One Heating & Cooling KW
BAU Mechanical Inc.
Elevate AIR
365 Heating
Air Pro Services
Stemerdink Services Ltd
Moe Heating & Air Conditioning Systems
Apex Home Comfort
Adil Hvac Services
Sierra Comfort Services
Roberts Onsite
Davis Mechanical Heating AND Cooling
Golden Gate Spray Foam & Fire Proofing
Energy Controls
Touchstone Building Technologies Inc.
Why these companies made our list
What customers say about companies in Kitchener
- “They immediately sent Ronnie to our rescue! I was completely impressed with Ronnie's professionalism and customer service, he did an excellent job of diagnosing and repairing the problem with my air conditioner.” — customer of Aire One Heating & Cooling KW
- “Professional, super friendly and was able to get my furnace up and running super quickly.” — customer of Air Expert Home Comfort Inc
- “On the scheduled day for installation, Infiniti installers arrived promptly with all the necessary equipment and tools as expected and installed our new heat pump without issue.” — customer of Infiniti Air Conditioning & Heating
Excerpts from public reviews of the companies listed on this page.
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