Furnace Repair & Installation in St. Catharines

Searching for dependable Furnace Repair in St. Catharines? MACKAY Heating & Cooling has been offering trusted heating solutions to homeowners in the Niagara region since 1967. Whether your furnace is not heating effectively or you’re ready to upgrade to a more energy-efficient system, our certified technicians provide expert repair and installation services. We are committed to keeping your home comfortable during the coldest months with fast, reliable service.

Our services include everything from minor furnace repairs to complete installations of high-efficiency furnaces. Our team uses cutting-edge technology to diagnose and resolve any issues with your furnace. If you need a new furnace installation in St. Catharines, we ensure a seamless process with professional setup tailored to your home’s unique heating needs. We also offer regular maintenance to help prevent future breakdowns and extend the lifespan of your furnace. Simply search "Furnace Repair in St. Catharines" to locate us quickly.

Quality Products

Top-tier HVAC products for lasting comfort.

Affordable Prices

Competitive rates without compromising quality.

Expert Technicians

Local Skilled professionals ensure perfect service.

Reliable Services

Dependable support, including 24/7 emergency care.

Our Furnace Services Include:

Why Choose MACKAY Heating & Cooling?

Furnace Repair in St. Catharines

If you need reliable Furnace Repair in St. Catharines, MACKAY Heating & Cooling offers professional and efficient service to restore your heating system’s performance. Our certified technicians are experienced with all furnace brands and models, ensuring quick diagnostics and repairs. Whether it’s a minor issue or an emergency breakdown, we work promptly to keep your home warm and comfortable throughout the winter. Searching for Furnace Repair in St. Catharines? You've found it!

Affordable Furnace Installation in St. Catharines

At MACKAY Heating & Cooling, we provide affordable furnace installation services for homeowners in St. Catharines. We help you choose an energy-efficient system tailored to your home’s needs and provide expert installation to maximize performance and reliability. With flexible financing options, upgrading your furnace is simple and budget-friendly, offering long-term comfort and energy savings.

Service Areas:

MACKAY Heating & Cooling proudly serves St. Catharines and the surrounding areas, including Niagara Falls, Niagara-on-the-Lake, Welland, Thorold, Grimsby, Port Colborne, Pelham, and Smithville. Wherever you are in the Niagara region, we are ready to provide reliable furnace repair and installation services.

Frequently Asked Questions (FAQs)

How do I know if my furnace in St. Catharines needs repair?

If your furnace is making unusual noises, not heating your home evenly, or causing unexpected increases in energy bills, it’s time to call for professional furnace repair in St. Catharines.

How long does a furnace installation take in St. Catharines?

A standard furnace installation in St. Catharines usually takes one day. However, the time may vary depending on the complexity of the installation and your home’s specific needs.

What are the benefits of upgrading my furnace in St. Catharines?

A new, energy-efficient furnace can lower your energy costs, improve heating performance, and ensure reliable warmth during the winter months in St. Catharines.

How often should I schedule furnace maintenance in St. Catharines?

It’s recommended to have your furnace serviced annually, especially before the heating season begins, to ensure it’s running efficiently and to avoid unexpected repairs.

Do you offer financing options for furnace installation in St. Catharines?

Yes, we offer flexible financing options to make furnace installation affordable for St. Catharines homeowners. Contact us to discuss the best financing plan for your needs.

Can you help with both gas and electric furnaces?

Absolutely. Our experienced technicians are trained to handle both gas and electric units. MACKAY Heating & Cooling delivers top-quality furnace service in St Catharines for all furnace types and brands.

How often should I get my furnace serviced?

It’s best to schedule furnace service in St Catharines at least once a year—preferably before winter starts—to keep your unit efficient, safe, and reliable throughout the cold season.

What are the benefits of regular furnace service in St Catharines?

Regular furnace service improves energy efficiency, extends system life, prevents sudden breakdowns, and maintains healthy indoor air quality. MACKAY Heating & Cooling ensures your furnace performs at its best.

Do you provide free estimates for furnace service in St Catharines?

Yes, we offer free, no-obligation quotes for furnace service in St Catharines. Our team will assess your system and provide clear pricing before any work begins.

For dependable Furnace Repair in St. Catharines, trust MACKAY Heating & Cooling.

Contact us today to schedule a service or get a free quote!

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HVAC Service Areas Across Niagara Region

MacKay Heating & Cooling

4.8

Based on 379 reviews

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Heather Dennis

15:41 08 May 26

Brady made this entire process painless. He was polite, friendly and efficient. He took time to explain what would be happening and took pictures so that I could see the changes (very thoughtful as I am mobility challenged). The use of booties and even a red carpet on my basement stairs to ensure there would be no mess for me to clean up was much appreciated. There was no pressure from Fred, the salesman, in any decision making and they were able to give me an appointment fairly quickly. Many thanks to all involved. I would definitely recommend MacKay Heating and Cooling.

nedra lobo

13:45 08 May 26

Amazing service! Steve was not only professional but took the time to answer all my questions. Thank you!

Natasha

10:35 08 May 26

Please read this. I noticed your business has some negative reviews that may harm it. If you want to remove negative reviews from your Google Business contact me via the details in my profile. (Natasha)

Romella Lina

14:42 06 May 26

It was easy booking with MacKay and they were transparent with the pricing. Tyler did a great job with our AC maintenance. He arrived on time and was efficient. We will definitely reach out to them again for future HVAC service.

Emil Ivanov

12:59 30 Apr 26

Dylan was right on time, very polite and professional, checked everything and finished his part in a timely manner. Thanks!

Diane L

02:28 06 Mar 26

I found McKay’s at the St Catharines Home Show back in 2014. We picked them because they were knowledgeable on the subject heat pumps – they installed a new furnace and heat pump for us a few months later – and we have been dealing with them ever since. Everyone we have dealt with has been extremely nice and more importantly, they all go out of their way to provide top quality service. It has been a pleasure dealing with everyone at MacKay Heating & Cooling, with much appreciation.

Jordan Alaimo

17:42 05 Mar 26

I contacted Mackay Heating & Cooling for a quote on a new hot water tank. Tyler arrived at our home within an hour and was very friendly and professional. He provided a detailed quote at no charge, which we really appreciated.

We decided to move forward with the installation, and Chris and Zack came the next day. They removed the old tank and installed the new one within a few hours. The whole process was smooth and efficient.

We’re very pleased with their work and the excellent service from the entire team. I would definitely recommend this company to anyone looking for reliable heating and cooling services.

Melissa Stoddart

04:34 25 Jan 26

I called at 930 pm for an emergency service call. The young man was very polite and thorough on the phone. He arrived on time. He explained clearly what he had done to assess the problem. Diagnosed and fixed the issue within an hour. Super personable and very professional. I highly recommend this company.

Patrick Lynch

16:26 22 Jan 26

After doing initial research, found MacKay Heating & Cooling was top of recommended local companies for tankleess hotwater , HVAC service, installation and maintenance. After meeting with Fred for quotation, i was impressed with experience and knowledge. This convinced me to go with them. When I phoned office to accept quote, the friendly office personnel quickly provided helpful service and advised a install date with expected time of arrival on date. On day of install a text message was sent by tech to advise they were on their way. The first tech Dave arrived at 8:03 to layout floor mats on exposed floor so they could not cause any mess while coming and going. As well to start drain of existing tank. Chris showed up shortly after and the removal of old and install went very well. A highly professional crew and final result was exceptional, piping for water, venting, natural gas and drainage were clean and square.
I highly recommend MacKay’s team of professionals.
Pat Lynch, Grimsby, Ontario

Dennis Munn

17:47 06 Jan 26

One of those absolutely perfect service calls. A job extremely well done with a very knowledgeable, professional and pleasant technician. And as well a very pleasant and knowledgeable person at the end of the phone line when I booked this. The quoted price when booking over the phone was exactly what I ended up paying.I highly recommend MacKay heating and cooling and the technician David.