Camo Gas Repair
“He knows the products he sells and assisted us to get a replacement part for our remote control for our fireplace since it was under warranty.”
Best HVAC Contractors in Welland, ON
15 companies listed · 7 in Welland · 2 open 24/7 · 8 open weekends · all 15 rated 4.5+
Data verified October 18, 2026
Williams Kool Heat
“Had to have a new a/c unit installed, very satisfied with the work done and would highly recommend Williams Kool Heat, quick and very professional”
Bob Pietz Heating & Air Conditioning
“My wife and I are so pleased to have met these great guys and look forward to a future relationship with regards to our AC, furnace and water tank.”
Canadian Elements Inc
“Had the boys out to update the central air on my house and they were able to get it done in a day and the price was amazing.”
Eric Gas & Electric
“Eric's team was able to make changes/improvements to my HVAC ducts and vents to better accommodate and improve circulation in my home.”
Bob Reid Heating & Air Conditioning
“I never felt pressured to make a purchase, and they graciously addressed all of my inquiries.”
The 15 companies listed for Welland, 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: Welland, ON
7 of the 15 companies we list are based in Welland; the other 8 serve Welland from towns including Niagara Falls (13 km), Port Colborne (10 km) and Stevensville (15 km). The companies on this page are rated from 4.5 to 5.0 across 1,653 reviews; 10 have 50 or more reviews. When customers rate these companies on specific qualities, they most often praise professionalism (92%), responsiveness (86%) and quality (80%). The topics that come up most in reviews of the companies on this page are "price", "efficient" and "cleanliness". 2 are open around the clock; 8 are open on Saturdays and 7 on Sundays. The services the companies on this page list most often on their websites are air conditioning (2), furnaces (2), heating (2), heating installation (2) and heating repair (2). 1 shows a licence on its website. Domain records put 6 websites of the companies on this page at ten or more years old; the oldest dates from 2001. 4 offer emergency call-outs; 4 offer financing or payment plans; 8 give free estimates; 2 are family- or locally-owned and 4 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.
Which companies listed for Welland answer no-heat calls at night?
Round the clock cover is stated in 2 of the 15 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.
AIM Heating & Cooling
“Great and prompt service, needed my AC fixed and he was able to help immediately highly recommend”
Niagara Home Heating
“John and his workers always answer all my questions and show interest in keeping my money in my pocket.”
Performance Heating & Air Inc.
“Carlo went above normal expectations making sure my air was back up and working as fast as possible.”
Montgomery Gas Heating & Cooling
“I can't express the understanding and the follow up plus the knowledge Scott has ,,,,,nobody wants to replace a furnace the inconvenience and the expense but he worked in our budget.”
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Mackay Heating & Cooling
“From the moment MacKay Heating & Cooling arrived at our home to perform an initial diagnostic of our a/c system to when our new a/c was installed a few days later, the team were the consummate professionals.”
Marty's Heating and Air Conditioning
“Allanah is a great employee very polite and always remembers our animals names too.”
Emerald Plumbing AND Heating
“I get leary about calling companies about things like this but I am so glad I called these guys!”
JW Furness Plumbing
“We had an issue with our furnace and they were quick to schedule an appointment and ensure it was fixed promptly!”
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Acumen Plumbing
“If you are looking for a very HONEST and RELIABLE company for your home plumbing and HVAC needs you have come to the right place.”
Why these companies made our list
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