We offer the latest energy-efficient furnace models to ensure your comfort and safety.


Whether central or ductless, we’ll help you make the best decision for you and your family.


Save money and protect your investment with our boiler and hot water heater installation and service.


Improve your home’s indoor air quality. Improve your health. Breathe easier.

snap-finance SNAP is the fast, flexible, easy way to pay for your heating, cooling and indoor air quality needs without having to wait. It’s the consumer-friendly financial program endorsed by your local dealer.

Why go to the bank when you can simply click on the pre-approved logo and complete our secure credit application. With SNAP, credit decisions take just minutes!

Welcome to Mackay Heating & Cooling

FOR OUR 24 HOUR EMERGENCY SERVICE call: (905) 688-1849 or

What Our Customers Say

  • On Saturday evening my furnace wouldn’t respond to a demand for heat so I called for a service person. Jason called back promptly and arrived at the house as soon as possible after finishing a couple of calls. He quickly determined that my thermostat was faulty and he replaced it. I want to commend your company and especially Jason for excellent and very friendly service. Having the VIP service contract is a great comfort and something I would never want to be without. P. S. Give Jason a raise or at least a hug  

    Ross Williams
  • Professional, service, willing to take the time to answer our questions, thoroughly and courtesy installations staff, honest. Quality workmanship and sound technical background to support their “talk”. Thank you Andrew for the excellent work!

    Paul and Peggy Cline
  • The crew that installed my furnace was knowledgeable, experienced and efficient. What is more, they were polite, and very customer oriented. They treated us and our home with respect and care. Very simply, the best thing of all was that Mackay heating and everyone I talked to and dealt with did what they said they were going to do and exceeded all expectations. Not all small business people do that. In fact not all big business people do that. In particular, my wide enjoyed Marty’s lecture on how to program the thermostat. Finally, the installation and the piping is almost a work of art. As you know, the other system was a piped up nightmare and caused me continuous mental pain when I just looked at it. I’m very pleased!

    Ron Gropp

Why Choose Us

Our Online Reviews
Click on these links to see what our clients said about us online!

HomeStars Review Our Work
Sleep Easy With Our Protection Plans
Mackay Heating & Cooling offers protection plans for both new and existing equipment. You can sleep easy at night knowing that your equipment is well-maintained and functioning properly to provide you with the utmost comfort effectively and efficiently.
24 Hour Emergency Service
Be confident that if something should go wrong... we will be there for you.
Our friendly service personnel are available 24 hours a day should there be an emergency that requires immediate assistance.
Comfortable Living
Live comfortably all year round...

Mackay Heating & Cooling offers the latest in furnace and air conditiong technologies to ensure accurate and comfortable climate control all year round.

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