Airpro Heating & Cooling
“If you are done with the big names in HVAC taking your money and providing less than decent service, AirPro is a company you will not regret using for your home HVAC needs!”
Best HVAC Contractors in Ancaster, ON
24 companies listed · 7 in Ancaster · 11 open 24/7 · 17 open weekends · 22 rated 4.5+
Data verified October 19, 2026
Guest Plumbing & Hvac
“Ethan, worked with me to prepare for the in-home service call and was able to get us back up and working in about an hour.”
Meadowlands Heating and Cooling
“His calm demeanour and excellent customer service make him a true professional.”
Associated Combustion Inc
Post Air Systems Inc.
“He is fixing my air system and his customer service is top notch!”
Frostline Mechanical
“Its not all about money and they really show how much they care about their customers, by going above and beyond for them.”
The 24 companies listed for Ancaster, 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: Ancaster, ON
7 of the 24 companies we list are based in Ancaster; the other 17 serve Ancaster from towns including Hamilton, Oakville and Brantford. 23 of the companies on this page have a rating, from 3.7 to 5.0 across 7,555 reviews; 19 have 50 or more reviews and 22 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (91%), quality (82%) and responsiveness (80%). The topics that come up most in reviews of the companies on this page are "efficient", "price" and "cleanliness". 11 are open around the clock; 17 are open on Saturdays and 12 on Sundays. 8 show a licence on their websites. 7 have ten or more years of experience, the longest 30 years. 14 offer emergency call-outs; 10 offer financing or payment plans; 13 give free estimates; 6 are family- or locally-owned and 12 list coupons or special offers. We have a website on file for all 24 of the companies on this page; 22 publish a contact page; 15 list a public email and 2 take bookings online. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Which companies listed for Ancaster answer no-heat calls at night?
Round the clock cover is stated in 11 of the 24 listings here. On a winter night that call is worth making early, because a house left without heat can freeze pipes before morning. Expect a temporary fix and a return visit once parts are available.
Haye Property Services
Dynamic Heating & Cooling
“Zac's team did a great job installing our furnace and air conditioner today, everything looks great and he ran me through everything when they were finished and answered all my questions.”
Hamco Heating and Cooling Ltd.
“A couple of days later Mike came to investigate the problems & quickly solved the problems & explained what was happening.”
Shipton's Heating & Cooling Ltd
“All of their employees are extremely pleasant and the workmanship is fantastic.”
Precision Hvac Mech Inc
“The service was completed quickly and efficiently, the team ensured they covered their boots to come inside and then placed mats down to keep the area clean.”
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Spurr Heating & Air Conditioning
“Spurr Heating and Air Conditioning did an excellent job installing my York air conditioner.”
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Canadian Heating and Air Conditioning Inc.
“We received fantastic service, from Hans, who initially took our call, to Bobby, who gave us a great quote and a speedy installation date, to Lyle, who installed the unit.”
Crystal Heating and Cooling
“They've been able to squeeze us in short notice and always explain thoroughly what's going on and what we can do to get things back on track.”
Appleby Systems
“Very pleased with my experience from the first phone call, which got an immediate technician, to the end result, with my a/c fixed.”
Abbey Air Home Services by Enercare
“Great service and our technician Wesley Trafford was very prompt and efficient with his work.”
Aire One Heating & Cooling
“The technician showed up on time and did an excellent job installing the unit .”
Airtemp Hvac Furnace and Air Conditioner
“Great service had my air conditioner moved and mounted on brackets to get off the ground they were very quick, cleaned up, checked everything thoroughly and friendly.”
Hearth & Home
“It is a rare thing in the world today to deal with such an outstanding representative, who not only was polite and respectful, but a very personable young man.”
B & G Heating & Cooling
“Neil was my initial contact for a new cooling unit and promptly provided me with estimates and information about the available products.”
Fanattics
“The team was not only professional and efficient but also went above and beyond to address any concerns I had.”
Hamilton Home Comfort
“They were very helpful finding the right unit and getting it to me quickly, install was seamless and done within a few hours.”
A Rescue Rooter
“We have used this company many times for various needs and they always give excellent service and work.”
EGH Evergreen Holdings
“The entire team are like family now and are going above and beyond to bring issues to our attention and rectifying these to our complete satisfaction.”
Why these companies made our list
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