Upper Grand Refrigeration Htg
“Luke arrived first thing after the holiday and repaired it - All the while answering the 100's of questions our son threw at him”
Best HVAC Contractors near Fergus, ON
2 of these companies are based in Fergus; the others serve Fergus from towns including Guelph (20 km), Elmira (19 km) and Maryhill (19 km).
7 open 24/7 · 10 open weekends · 13 rated 4.5+ · 3 show a licence
Data verified October 21, 2026
Fireside Home Comfort Inc
“The bunkie was totally finished on the inside and his floor register cuts, cold air return vents and thermostat looked like they were always there.”
Total Home Energy Systems
“Greg, who did the AC check up this year was friendly and knowledgeable.”
B.a.p Heating & Cooling Services
“They both took the time to fully explain the situation and were clear in their communication which helped set expectations.”
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Hy-Mark Home Comfort
“Adam was great at figuring out which unit was best and most cost effective for us!”
CJ Brubacher Ltd
“He not only resolves plumbing issues but also takes the time to explain the process, ensuring we're informed and comfortable every step of the way.”
The 14 companies listed for Fergus, 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: Fergus, ON
The 14 companies on this page are rated from 4.2 to 5.0 across 3,115 reviews; 11 have 50 or more reviews and 13 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (94%), quality (78%) and responsiveness (78%). The topics that come up most in reviews of the companies on this page are "price", "efficient" and "estimates". 7 are open around the clock; 10 are open on Saturdays and 8 on Sundays. The services the companies on this page list most often on their websites are duct cleaning (3), heating (3), appliance installation (2), fireplaces (2) and heat pumps (2). 3 show a licence on their websites. 5 have ten or more years of experience, the longest 29 years. 9 offer emergency call-outs; 8 offer financing or payment plans; 5 give free estimates; 3 are family- or locally-owned and 9 list coupons or special offers. We have a website on file for all 14 of the companies on this page; 12 publish a contact page; 8 list a public email and 3 take bookings online. 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?
2 of the 14 companies have an address in Fergus; the rest come from other towns within 25 km. Crews drive to the job, so the address matters less than whether they answer calls in your area in winter.
Aido Climate Solutions Inc.
“He found the problem immediately and had it resolved in a timely fashion.”
Guelph Climatecare
“Installation, communication with office staff and service calls thereafter have been prompt and on time.”
Cornerstone Trade Solutions Inc.
“Electrician was polite, good communicator, patient, listened to us, gave good advice.”
Assurance Heating and Cooling
“He arrived on time and worked efficiently to get me a new Furnace just before we had a really cold snap.”
Waterloo Energy Products & Mechanical Inc.
“Waterloo Energy Products staff are professional, extremely knowledgeable, and have also helped my community by giving free info session/showroom tour to help neighbours get up to speed on the changes in home space and water heating.”
UC Experts / Ultra Comfort Guelph
“Have had great experience with the Guelph team with the install of new furnace as well as gas fireplace in our newly bought older home .”
Oosterveld Heating and Air Conditioning
“They took pride in their work and it was easy to see that they were very experienced.”
Shuh's Appliance Centre
“Took the whole thing apart and diagnosed the issue post multiple tests and replaced the part immediately.”
Why these companies made our list
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