HVAC Contractors in Oshawa, — 44 Local Contractors

There are 44 hvac contractors in Oshawa, . The average rating is 4.8 out of 5 stars across 32 rated businesses. The highest rated is Enercare (4.9 stars). The most reviewed is Enercare with 9327 reviews.

Whether you need routine service or a major project, Oshawa has qualified hvac contractors ready to help. Common services include furnace installation, air conditioning repair, heat pump setup, duct cleaning, and ventilation upgrades. To protect yourself, confirm HVAC certification, gas fitting license where applicable, and insurance coverage. Ontario's variable four-season climate play a role in scheduling and material selection, so hire someone who knows the area. Schedule maintenance before peak heating and cooling seasons for better availability. Compare your options below to find the right fit.

Planning a hvac project in Oshawa?

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 Oshawa?
There are 44 hvac contractors listed in Oshawa, as of 2026.
What is the average rating?
The average Google rating for hvac contractors in Oshawa is 4.8 out of 5 stars.
How do I choose a hvac in Oshawa?
Compare ratings and review counts, verify their credentials and insurance, and get at least three quotes before hiring.

Free seasonal home maintenance tips

One email a month with what to check before the season turns. No spam, unsubscribe anytime.