B.a.p Heating & Cooling Services
“"The technician arrived on time and performed the task with the utmost care and professionalism.”
Best HVAC Contractors in Guelph, ON
17 companies listed · all 17 in Guelph · 7 open 24/7 · 10 open weekends · 15 rated 4.5+
Data verified October 21, 2026
Air Wave Heating and Cooling
“I thought the service was excellent, and the technician was super knowledgeable and helpful.”
Guelph Climatecare
“Had a new central air-conditioner installed today, very Happy with help from the office and Andrew with installation”
Aido Climate Solutions Inc.
“We really appreciate the quick communication, answering all our questions and getting a new furnace and water heater set up SAME DAY!”
Assurance Heating and Cooling
“We have used Assurance HVAC for both our furnace and AC in Markham and they have been great every time.”
Cornerstone Trade Solutions Inc.
“I hired cornerstone to complete my electrical, plumbing, and hvac for my basement that I am converting to an additional dwelling unit.”
The 17 companies listed for Guelph, 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: Guelph, ON
All 17 companies we list here are in Guelph itself. We have 20 companies in Guelph on file; this page shows the highest-rated 17. The companies on this page are rated from 4.2 to 5.0 across 4,296 reviews; 10 have 50 or more reviews and 15 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (97%), punctuality (76%) and responsiveness (76%). The topics that come up most in reviews of the companies on this page are "price" and "estimates". 7 are open around the clock; 10 are open on Saturdays and 7 on Sundays. The services the companies on this page list most often on their websites are duct cleaning (2), fireplaces (2), heating (2) and water heaters (2). 2 show a licence on their websites. Domain records put 4 websites of the companies on this page at ten or more years old; the oldest dates from 1997. 7 offer emergency call-outs; 5 offer financing or payment plans; 2 give free estimates; 4 are family- or locally-owned and 5 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 Guelph work on Saturdays or Sundays?
Saturday or Sunday hours show up for 10 of the 17 companies on this page. Saturday is mostly repair work; installations land on weekdays, because supply houses and municipal inspectors keep weekday hours.
UC Experts / Ultra Comfort Guelph
“We could not be happier with the high level of customer service, quality of the products and professional manner that the team demonstrated!”
Oosterveld Heating & Air Conditioning
“There were some requirements to comply with on warranty of the furnace which he handled professionally and courteously.”
Essential Air Heating and Cooling Inc
“Ani provided excellent customer service, communicated clearly throughout the entire process, and made everything incredibly smooth and stress-free.”
Shuh's Appliance Centre
“Best price, best service, best advice and a great team of knowledgeable staff.”
National Air Balance Inc.
“Appreciate NAB prompt attention to our needs helping us get our client's facility and business up and running.”
O'Brien Fabrications Ltd.
“Job was completed quickly and professionally, great job to the O'Brien Team”
Murray Young Enterprises Inc
“He and his assistant showed up at our house 45 minutes later, determined we needed a new motor, drove to from Guelph to Waterloo to obtain the motor and had it installed by 2:30 pm”
Wellington Comfort Systems
“Very wonderful people that are very accommodating and kind.”
Consistent Cooling Inc.
“Consistent Cooling provides great service and goes above and beyond when an issue arrives during summer or winter.”
Jess-Don Dunford Ltd
“Great customer service, needed a part for an emergency and they got it out, saving me from looking elsewhere after other suppliers did not have parts available.”
Precision Air Solutions Inc.
“They also didn't leave me with a mess, and they finished the job quickly.”
Why these companies made our list
What customers say about companies in Guelph
- “The crew was very professional. They explained the operation of the heat pump and furnace, answered all my questions regarding the set up and adjustments.” — customer of B.a.p Heating & Cooling Services
- “The price for the new air conditioner was very reasonable and the install happened in a very timely manner.” — customer of Assurance Heating and Cooling
- “Furnace was diagnosed and repaired super fast. Noah was extremely professional and kind.” — customer of Guelph Climatecare
- “We had to replace thermostats in our office building and Air Wave made a good recommendation and their service person was great.” — customer of Air Wave Heating and Cooling
- “Wally and Mario installed our new heat pump and furnace, explained everything they were doing and cleaned everything as they went.” — customer of UC Experts / Ultra Comfort Guelph
Excerpts from public reviews of the companies listed on this page.
Is this page useful? Yes
No
Is there anything wrong with this page?
HVAC Contractors near Guelph
Popular in Guelph
, ONGuides: HVAC Contractors
Ontario CO Alarm Rules 2026: How Many You Need and Where
Central AC Replacement Cost in Canada: What You'll Pay
Furnace Replacement Cost in Canada: What You'll Pay
Furnace Smells Like Burning? What's Normal, What Isn't
Heat Pump Cost in Canada: Prices, Sizing and Rebates
Hot Water Tank Replacement Cost in Canada: Prices, Permits