HVAC Companies in Ajax, ON
Browse 97 verified hvac companies in Ajax, Ontario. Compare ratings, read reviews, and get free estimates today.
97
Providers
Ajax
ON
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Showing 21-40 of 97 providers for HVAC
"Great customer service, very detailed work and always gets the job done!!"
CNS Building Solutions HVACR - The Heating and Cooling Professionals
26 Bray Dr, Ajax, ON L1T 3M1
"Punctual, quick and really good price for fixing my furnace problem."
Superior HVAC Service, Heating & Air Conditioning
174 Harwood Ave S #206, Ajax, ON L1S 2H6
"They responded quickly, arrived on time, and diagnosed the issue right away."
"They were timely, professional, and did a very clean and smooth job."
Top Rated Contractors 2026
Ajax, ON
Every contractor shown for Ajax, Ontario is listed with the rating and review count from its public Google Business Profile, so you can compare local professionals on the same basis. Businesses marked as claimed have confirmed their own details, which is not the same as a licence or insurance check. Confirm licensing and insurance directly, then request at least three written estimates before you hire in Ajax.
About HVAC Companies
Find qualified hvac companies in Ajax. All listed providers are verified and rated by customers.