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B.a.p Heating & Cooling Services
- Competitive
- Call
- Quote
“Zack was excellent and professional in providing services on two occasions, setting up an AC and thermostat as well as a dangerous gas line replacement!”
Best HVAC Contractors in Guelph, ON
24 companies listed · 19 in Guelph · 10 open 24/7 · 15 open weekends · 21 rated 4.5+
Data verified October 21, 2026
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Hy-Mark Home Comfort
- Informative
- Water Heater
- Efficient
“He is a very skilled professional; thorough and knowledgeable, and always willing to answer our questions, and to demonstrate the proper set-up and use of the system controls.”
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Aido Climate Solutions Inc.
- Questions
- Water Softener
- Informative
“Everything was cleaned up and taken away and he also did a quick addition to my piping adding shut off valves as the original builder did not provide them.”
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Guelph Climatecare
- Heat Pump
- Quote
- Cleaned
“As I was thinking about what to do about replacing my furnace, they provided me with different quotes on what I could have plus they gave me information on heat pumps with the current rebates.”
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Cornerstone Trade Solutions Inc.
- Contractor
- Fair
- Water Softener
“I have had a relationship with Cornerstone for many years both commercially and residentially and they have always been professional, prompt and knowledgeable.”
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Assurance Heating and Cooling
- Duct
- Pool Heater
- Call
“Brandon was recommended to us by a friend for a new a/c and furnace, we are very glad we called him, my new go to person for future pool heater, water heater and gas line hook ups.”
The 24 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
19 of the 24 companies we list are based in Guelph; the other 5 serve Guelph from Kitchener (23 km) and Waterloo (23 km). The companies on this page are rated from 4.2 to 5.0 across 3,536 reviews; 12 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 (91%), quality (78%) and responsiveness (75%). The topics that come up most in reviews of the companies on this page are "price", "estimates" and "cleanliness". 10 are open around the clock; 15 are open on Saturdays and 12 on Sundays. The services the companies on this page list most often on their websites are heating (5), cooling (4), duct cleaning (3), fireplaces (3) and heat pumps (3). 4 show a licence on their websites. Domain records put 7 websites of the companies on this page at ten or more years old; the oldest dates from 1997. 11 offer emergency call-outs; 8 offer financing or payment plans; 5 give free estimates; 5 are family- or locally-owned and 10 list coupons or special offers. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Why do some of these firms show another city?
19 of the 24 companies have an address in Guelph; the rest come from other towns within 30 km. Crews drive to the job, so the address matters less than whether they answer calls in your area in winter.
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UC Experts / Ultra Comfort Guelph
- Call
- Sales
- Questions
“You would assume with such a big ticket item they could Supply 4-AA batteries with the unit but no it was like buying a new toy ( batteries not included).”
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Oosterveld Heating and Air Conditioning
- Rebate
- Tech
- Lennox
“The only thing is even though their rep & I had discussed the problem of the limited space outside, the unit they arrived with was huge & they had to go back for a smaller one.”
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Shuh's Appliance Centre
“We also appreciated his resourcefulness in helping with our older gas fireplace and even sourcing electrical work to get appropriate wiring done above the fireplace.”
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National Air Balance Inc.
- Contractor
- Building
- Business
“NAB has always provided a quality service, making themselves available on a short notice, sharing their expertise and offering assistance in construction challenges.”
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Easton Climate Control
- Tankless Water Heater
- Humidifier
- The Future
“He came out the next day, took him 10 mins to figure out what the problem was, replace the part and he charged half of what the other guys I called were quoting.”
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A 1 Kool Heating & Air Conditioning
- Rebates
- Saving
- Heat Pump
“There may be less expensive companies for straightforward HVAC repair, but because our system is very new and already had all new filters, I felt safe utilizing them.”
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O'Brien Fabrications Ltd.
- Company
“Good people went for oceans container welding they were perfect nice people too”
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Wellington Comfort Systems
“After time wasted and repeated poor experiences with other local ("big name") HVAC companies, we reached out to Wellington Comfort Systems for another opinion.”
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Air Wave Heating and Cooling
- Prices
“Much appreciated their pronto care.”
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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.”
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Infiniti Hvac Guelph
“Both service reps were friendly and took time to explain the things I needed to knoe”
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Consistent Cooling Inc.
“Consistent Cooling provides great service and goes above and beyond when an issue arrives during summer or winter.”
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Essential Air Heating and Cooling Inc
- Tankless Water Heater
- Needs
- Price
“Extra time and care for my tankless water system which was a very tricky install for the guys but they worked through the process and finished with a great stream line look in my laundry room.”
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Jess-Don Dunford Ltd
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Precision Air Solutions Inc.
“They also didn't leave me with a mess, and they finished the job quickly.”
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Delta Air Systems Ltd.
- Hvac System
- Lennox
- Rebates
“The salesperson, Tanya, was very knowledgeable and explained that we didn't need any replacement as the unit was relatively new and was most likely still under warranty.”
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Advance Heating & Cooling KW
- Sales
- Gas
- Quote
“We had five quotations from different Kitchener-Waterloo companies, and were looking at both heat pumps and ACs from Trane, Lennox, and Amana, while trying to avoid rebranded Gree and Midea (reddit helps a lot with selection).”
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Unique Air
- Leak
- Clean
- Gas
“Everything was great up until the guy that installed the tile mantle as the job was not up to par but Ali was quick to work with us and the tile guy is coming back so hopefully he will be able to fix the job that he did.”
HVAC, Heating & AC Services in Guelph, ON Cost Estimates
Minimum cost
$2480
Maximum cost
$14863
National Average
$7738
Avg Per Hour Rates
$206
$5311
$10257
Average price range is based on 524 cost profiles
Why these companies made our list
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