Serving Durham Region & Surrounding Area

info@fortisheating.com

Service Area

Durham Region & Surrounding Area

HVAC Maintenance

Comfort You Can Count On

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Welcome!

Oshawa HVAC Maintenance Services

We are taught that daily routines are important. Our lives depend on it.

From the time we’re a child, we learn that hunger means we need to eat. A similar notion can be applied to your car. Every 5,000 – 10,000 miles, you have to get an oil change to achieve the goal of increasing the longevity of the vehicle’s engine.

The same also goes for your heating and cooling systems. Annual routines and maintenance are critical to the life expectancy of your HVAC systems and supporting units in Oshawa. Pay attention to your systems. Maybe it’s working harder than normal. Maybe you hear a clanking that doesn’t sound quite right. Maybe you smell something a bit off in the air. That’s your cue to call Fortis Heating & Air Conditioning. We serve the Oshawa and Cobourg region, and we can help you be proactive in your maintenance versus reactive when something goes terribly wrong in HVAC systems. A little money now could save you big bucks in the future.

Have our experts come out for an annual inspection to ensure quality and efficiency throughout your home. 

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A Fortis Technician will contact you within 24-48 hours!

Fortis Heating & Air Conditioning place picture
5.0
Based on 64 reviews
powered by Google
Lindsay Allen profile picture
Lindsay Allen
10:39 31 Mar 25
I had the pleasure of having Craig come out to our house to fix our furnace a few times now.

Craig has always provided friendly, professional service and takes the time to explain the issue and answer any questions.

Throughout the service, Craig was meticulous and obviously took pride in his work. Craig went above and beyond and was respectful of our home making sure everything was clean and tidy before he left.

I highly recommend Fortis HVAC and will call them again should we have any further issues.
Response from the owner 11:07 31 Mar 25
Lindsay, thank you for your kind words and for taking the time to leave us a review! We truly appreciate your support and are glad we could provide you with great service. If you ever need anything in the future, don’t hesitate to reach out!
Elena Koskinas profile picture
Elena Koskinas
19:39 29 Mar 25
Can’t say enough amazing things about the team at Fortis Heating. Nick & Craig are extremely professional, reliable and affordable! The quality of their work is exceptional. They did the job in a timely manner and left the place exactly as it was found. They were very quick, responsive and respectful of our time. We will be using Fortis Heating for many years to come and recommend them to all!
Response from the owner 02:50 30 Mar 25
Thank you, Elena, for the amazing Google review! We truly appreciate your kind words and support. If you ever need anything, Fortis Heating is always here to help!
Michael Druce profile picture
Michael Druce
21:15 04 Feb 25
⭐⭐⭐⭐⭐

“I had an excellent experience with Fortis Heating and Air conditioner ! They were nothing but wonderful — punctual, professional, and incredibly easy to work with. Their communication was top-notch, keeping me informed every step of the way. It’s rare to find a company that delivers such smooth and stress-free service. Highly recommend for anyone needing HVAC work!”
Response from the owner 21:50 04 Feb 25
Thank you Mike for taking the time to write us a review. Really appreciate the kind words. Anything you need give us a call
Andrew Primeau profile picture
Andrew Primeau
15:40 29 Oct 24
I couldn’t be happier with the service from Fortis Heating and Air Conditioning! They responded incredibly quickly and arrived right on time. Craig was incredibly knowledgeable and took the time to explain everything, making sure I was comfortable with each step. I appreciated their professionalism and expertise in getting the job done efficiently. Highly recommend Fortis for anyone needing fast, reliable, and knowledgeable HVAC service!
Response from the owner 00:25 31 Oct 24
Thank you so much for the kind words Andrew. Anything you need we are just a call away.
Andrea Brazil profile picture
Andrea Brazil
12:56 21 Oct 24
We have used Fortis Heating and Cooling several times for service to both our furnace and AC. They have always been quick getting to us, super knowledgeable, honest and explains everything thoroughly. Extremely reasonable pricing. Would definitely recommend to anyone looking for H&C help, and will be using again in the future!
Response from the owner 13:16 21 Oct 24
Thank you so much Andrea for leaving us a great review. Anything you need just give us a call.
Nick Frankers profile picture
Nick Frankers
21:25 15 Oct 24
Craig did a great job with our furnace and replaced our faulty electrical switch! Everything is running super smoothly and we very much appreciate it!
Response from the owner 21:39 15 Oct 24
Thank you for the great Review Nick. Anything you need let us know.
Sandra Frankevych profile picture
Sandra Frankevych
21:13 15 Oct 24
Absolutely the best service. Efficient and very honest. Thank you Craig for checking our furnace and fireplace. Will only use your company for the future.
Response from the owner 21:40 15 Oct 24
Thank you Sandy for taking the time to write such kind words. Anything you need we are a call away.
Jennifer Fraser profile picture
Jennifer Fraser
13:51 07 Aug 24
Craig came to do a service on my air conditioning unit. I said it was not urgent, but he was able to come the very next day after I called . He did a thorough inspection. He came on time. Great professional, friendly service!!
Response from the owner 14:12 07 Aug 24
Thank you much for the review Jennifer, it was a pleasure meeting you.
Sheila Siciliano profile picture
Sheila Siciliano
20:47 01 Aug 24
Our air conditioner stopped working during a heat wave and Nick came out in less than an hour and solved the issue at a great price. Would highly recommend this professional and trustworthy business.
Response from the owner 02:50 05 Aug 24
Glad we could get you back up and running. Thank you leaving us a great review.
Nick did an excellent job cleaning and doing our regular furnace maintenance today. Was right on time, and did a great job explaining everything after he was done. Will be using them again!
Response from the owner 19:16 10 Jul 24
Thank you Samantha for taking the time to write us a review. Anything you need in the future we are a phone call away.
Hvac Maintenance Oshawa

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About Us

Trained & Dedicated HVAC technicians

Repair and maintenance for HVAC systems in Oshawa are common, and as a homeowner, it’s important that you anticipate these needs. While some are lucky to get a warning before their system fails or shuts down, most do not. Don’t let it take you by surprise. The frustration alone isn’t worth it, especially in the midst of a cold winter needing heat or a hot summer needing cooling. Take care of your home and your health by working with our licensed maintenance technicians on the upkeep of your heating and cooling. Give us a call today! Our specialists will be happy to help!

With 30 years of combined residential HVAC experience, Fortis delivers service you can trust.

Why Homeowners in Oshawa Choose Us for HVAC Maintenance

We are a locally trusted HVAC company serving homeowners in Oshawa and Durham Region. With years of experience and a commitment to top-tier service, we make furnace installation simple, affordable, and stress-free.

Hvac Maintenance Oshawa
Hvac Maintenance Oshawa
Hvac Oshawa

Low Monthly Payments!

Take the stress out of unexpected furnace and air conditioning expenses by applying for low interest and flexible payment plans through our financing company, Finance It.

Our Process

Our Preventative HVAC Maintenance Process

System Inspection & Assessment

Our technicians inspect your heating and cooling system, checking key components, airflow, and overall performance to identify any issues or maintenance needs.

Clear, Upfront Pricing

We explain our findings and provide clear, upfront pricing before any work begins—no hidden fees or unexpected costs.

Professional Maintenance Service

Certified technicians perform thorough cleaning, adjustments, and tune-ups to help improve efficiency, reliability, and system lifespan.

Warranty & Ongoing Support

We stand behind our work and provide continued support to help keep your HVAC system running smoothly year after year.

Contact us today at 289-688-4822 to learn more about our HVAC maintenance solutions in Oshawa.

Regular HVAC maintenance helps reduce unexpected repairs and extend system lifespan. Fortis Heating & Air Conditioning offers professional tune-ups, inspections, and performance checks to keep your system operating at its best.

Your Local HVAC Maintenance Experts

Reliable HVAC Maintenance Services You Can Trust

When it comes to keeping your home comfortable throughout Ontario’s changing seasons, regular HVAC maintenance is essential. Fortis Heating & Air Conditioning is committed to providing dependable, high-quality maintenance services that help prevent breakdowns, improve efficiency, and extend the life of your heating and cooling systems. Whether your system needs a seasonal tune-up or a full inspection, our team is here to help you make confident, informed decisions for your home.

We take pride in offering prompt service, clear communication, and workmanship that meets the highest industry standards. From first-time homeowners to long-term residents, Fortis Heating & Air Conditioning works with you to ensure your HVAC system operates safely, efficiently, and reliably year after year.

Questions?

Frequently Asked Questions

We recommend that everyone with a gas furnace have a seasonal maintenance contract to have the furnace serviced every year before the heating season. Having this done annually can prevent costly repairs in the future.

A dirty filter is one reason your furnace can short cycle and overheat. … If the furnace gets too hot, the switch will shut down the furnace. A dirty filter prevents a flow of return air into the furnace, without the return air, it will quickly overheat and turn off.

Many factors can come into play when deciding whether you should replace your old furnace, some of the most common ones are as followed:

  1. The age of your system
    rising energy bills
  2. Excessive rusting and rooting of unit
  3. Constant furnace repair costs
  4. Furnace becoming noisy and rattling

Fortis Heating & Air Conditioning recommends annual maintenance before each heating and cooling season to keep your HVAC system running efficiently and reliably. Regular professional inspections help catch small issues early, reduce energy costs, and extend system lifespan.

A typical HVAC maintenance visit from Fortis includes checking and replacing air filters, inspecting electrical components, testing controls and thermostats, clearing debris from outdoor units, and ensuring all system parts are working properly. This comprehensive tune-up helps prevent breakdowns, improve efficiency, and maintain comfort throughout the year.

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