HVAC Contractors in London, ON — 77 Local Contractors

There are 77 hvac contractors in London, Ontario. The average rating is 4.6 out of 5 stars across 72 rated businesses. The highest rated is Reliance London Heating, Air Conditioning & Plumbing (4.8 stars). The most reviewed is Reliance London Heating, Air Conditioning & Plumbing with 12803 reviews.

London's continental climate demands reliable heating and cooling systems. Local homeowners typically seek contractors for furnace installation and repair during harsh winters, air conditioning upgrades for summer comfort, and routine maintenance to maximize efficiency. When hiring, verify licensing, insurance, and references. Request detailed written quotes before committing. Given London's mix of older Victorian homes and newer subdivisions, experienced contractors understand the specific ductwork challenges each presents. Regional pricing reflects Ontario's competitive market, though winter emergency calls may cost more. Choose contractors familiar with your home's age and construction style for optimal results and longevity.

Planning a hvac project in London?

Tell us what you need and local pros will get in touch. Free, no obligation.

Tired of calling around? Post your project once and let local pros come to you.

Frequently Asked Questions

How many hvac contractors are in London?
There are 77 hvac contractors listed in London, Ontario as of 2026.
What is the average rating?
The average Google rating for hvac contractors in London is 4.6 out of 5 stars.
How do I choose a hvac in London?
Compare ratings and review counts, verify their credentials and insurance, and get at least three quotes before hiring.