It's what's expected right?

At Fortis Heating & Air Conditioning in Oshawa, we offer that big company feel but without the big company costs!


FREE Nest Thermostat with all new furnaces and air conditioners!

Our Heating & Air Conditioning Services in Oshawa


Canadians need to know their families will be kept warm in the colder months. Our top priority is to provide you with that confidence. 


There’s nothing worse than your Air Conditioner breaking down in the middle of the summer. Give us a call and we’ll fix it or replace it!

Water Heaters

Name one person you know who likes a cold shower! We will help make sure your water heater is always in working order.


Have your HVAC equipment maintained annually to avoid costly repairs and extend the life span of your equipment. We offer affordable packages!


Welcome to Fortis Heating & Air Conditioning in Oshawa, Ontario!

We are a locally owned and operated HVAC Company located right here in the Durham Region!  We service local families from Oshawa all the way to Cobourg! Whether you need an inspection, a repair, an installation or someone to provide sound HVAC recommendations, we’re here to help!

We provide extremely quick turnaround times and friendly customer service in Oshawa.  Our main goal is to keep our customer’s homes extremely comfortable while keeping costs to a minimum.

At Fortis Heating & Air Conditioning in Oshawa, we offer that big company feel but without the big company costs!

Servicing The Following Areas:

Oshawa to Cobourg and surrounding areas including:
Whitby, Ajax, and Bowmanville!


Fortis Heating & Air Conditioning Installation & Repair in Oshawa

We want you to know that our entire goal is to look out for your family as if you were our own. Whether you need a quick repair, an inspection, or a full installation of a new product in Oshawa, we’re going to recommend what’s best for you, no matter what.

Jenna Chartier - Oshawa
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I’ve dealt with the big corporations before…all they care about is money. Fortis really is there to help save money and get amazing service. We won’t go anywhere else again!
Jamie Murphy - Whitby
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Finally upgraded to a new AC unit and I’m so happy. Fortis integrated it into my smart home features and I feel like I’m living with the Jetsons! Thanks guys – really great work

Founded in 2018...FORTIS IS HERE TO HELP

Want to learn more about us? Click below.

Times are tough for our country, we want to help.

Now offering 75% off service diagnostic at

$39.99 + tax

Expires December 31/2020