HVAC Contractors in Ontario
1,351 HVAC contractors in Ontario with multi-platform trust scores.
Top-rated hvac contractors in Ontario
- 1CK Mechanical Heating and Cooling Inc.· Windsor94/100
- 2Ashton Heating & Cooling· Courtice90/100
- 3Affordable Comfort· Barrie89/100
- 4Able Air Conditioning & Heating· Kitchener88/100
- 5Bison Air Inc· Vaughan88/100
- 6City Home Comfort· Toronto88/100
- 7Gastech Solutions Inc.· St Thomas87/100
- 8Climate Works Heating Cooling & Plumbing· Richmond86/100
- 9Cozy World Inc.· Richmond Hill86/100
- 10DeMarco Mechanical Services· Scarborough86/100
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Frequently Asked Questions
How much does HVAC service cost in Ontario?
HVAC technicians in Ontario charge $100–$175 per hour; a furnace repair visit runs $150–$500 and an AC repair $150–$600. Furnace installation runs $3,500–$8,500, central AC $3,300–$7,000, and a heat pump system $4,000–$10,000.
Do HVAC contractors need to be licensed in Ontario?
Yes. HVAC contractors working with gas must be registered with the Technical Standards and Safety Authority (TSSA). Ask for the registration number and check it with the TSSA.
How often should I service my furnace?
Annual furnace maintenance is recommended, ideally in early fall before heating season. Regular servicing can extend equipment life and prevent carbon monoxide issues.
What is a TSSA licence?
TSSA (Technical Standards and Safety Authority) licences are required for technicians who install, service, or repair natural gas and propane equipment in Ontario.
Should I repair or replace my furnace?
Generally, if your furnace is over 15 years old and repairs exceed 50% of replacement cost, replacement is more economical. A qualified HVAC technician can advise.
HVAC Contractors by city
68 Ontario cities have a ProScore page for HVAC contractors. The number beside each is how many we score there.
From our research: Ontario contractors average a trust score of 54 of 100, and 74.7% of those rated 4.5 stars or higher fall below the Trusted bar — see the 2026 Trust Index.