HVAC Services in Toronto & the Surrounding GTA​

Heating, cooling & air quality solutions to make your home feel just right, 24/7/365.

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Heating & Air Conditioning for Toronto & Greater Area

Our Featured Services

Save yourself the cost of frequent furnace repairs by replacing your furnace. Our highly-trained furnace technicians can help determine which furnace is best for your home and install it with precision and courtesy.

For more information, please visit our Furnace Installation page.

Keeping your home comfortable shouldn’t be an inconvenience. Mersey Heating and Cooling offers 24/7/365 furnace repairs. If your furnace is suddenly in urgent need of service, our NATE-certified technicians are ready to help.

For more information, please visit our Furnace Repair Services page.

Keeping your air ducts clean can have a direct impact on your health. Our duct cleaning services include a full inspection for leaks and a comprehensive cleaning for your full heating and cooling ventilation system.

For more information, please visit our Duct Cleaning page.

When our highly-skilled technicians install your new air conditioning unit, they will ensure it’s set up for optimal performance. And of course, your home and yard will look just as clean and tidy as they did before the installation started.

For more information, please visit our Air Conditioning Installation page.

Our Right Time™ certified technicians are always on-call to ensure your air conditioning unit works when you need it most. No matter what brand, make, or model, our team has the skills and experience to repair the problem.

For more information, please visit our Air Conditioning Repair page.

Maintaining your furnace can save you from costly repairs and a sudden lack of heat. Our furnace technicians can help ensure your furnace lasts longer through regular maintenance.

For more information, please visit our Furnace Maintenance page.

Mersey Heating & Air Conditioning is proud to offer a great selection in hot water heaters along with complete installation. We appreciate the fact that a proper installation is key to preventing the need for repair or adjustment down the road, so we make sure it’s done right from beginning to end.

For more information, please visit our Hot Water Heater Installation page.

Whether you’d like to upgrade to a tankless hot water heater or need a simple repair, Mersey can help. We have the latest and greatest tankless hot water heaters available in our vast selection, and are happy to help you find the unit that’s best for you.

For more information, please visit our Tankless Hot Water Heater page.

Service Areas

  • Aurora
  • Concord
  • Downsview
  • East York
  • Etobicoke
  • King City
  • Maple
  • Markham
  • Newmarket
  • North York
  • Rexdale
  • Richmond Hill
  • Scarborough
  • Thornhill
  • Toronto
  • Unionville
  • Vaughan
  • Whitchurch-Stouffville
  • Willowdale

When Life Gets Unpredictable, We Can Help

Always On-Call

Always On-Call

We have NATE-certified technicians on-call twenty-four-seven, so someone is always available to help when you need it. There are never extra charges for after-hours service.

We Respect You ™

We Respect You ™

If you need help, our technicians offer a bit more. We guarantee that they will be courteous and respectful in your home, so you have one less thing to worry about.

Ready To Go

Ready To Go

Our fleet of trucks are always prepared with whatever we might need to help. With decades of experience in the industry, you can count on Mersey Heating & Air Conditioning.

Certified Technicians

Certified Technicians

All of our technicians undergo rigorous training, extensive background checks, and have a network of resources behind them. We’re always ready to help!

ENERGY STAR® for Your Home

We’re proud to offer ENERGY STAR® certified products, the gold standard for measuring energy efficiency in North America. Whether you’re looking for a furnace, air conditioner, water heater, or heat pump, all products with the ENERGY STAR® label have undergone rigorous testing for energy efficiency.

For you, this means lower emissions and a lower energy bill.

Call Us. We’re Very Friendly



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