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24/7/365 Home Boiler Services

Mersey Heating and Air Conditioning provides homeowners across Toronto and the surrounding GTA with a full range of residential services for boilers, including: 

  • Full replacement & installation of boiler systems for the home 
  • Fast, post-installation home boiler emergency repairs, available 24/7/365  
  • Friendly ongoing maintenance that prevents long-term problems following your system setup  
  • Certified experts with three decades of experience and G1, G2, 313A & 313D, 308A, ODP, Wardflex, and Supervisor Training Program & IHSA Health and Safety Education Program for Contractor Safety Essentials 
  • Emergency & last minute home appointments available! 
Call us at (416) 752-8351 or request a quote online today!


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Our Advantage

Our ENERGY STAR® partnership ensures we adhere to environmentally-friendly practices.

All of our technicians achieve the highest level of certification from Canada’s leading HVAC training organization.

The Better Business Bureau® confirms our expertise, efficiency, and standard of customer care.

Our Right Time™ certified technicians are always on call, ensuring you get the help you need when you need it.

What Customers Say

“Mersey can always be relied on to do a great job. Recently had Cory Latino service my Mersey-installed boiler and he was fab! He was super nice, knowledgeable, efficient, and very careful. Lovely young man – he has my vote of confidence! Go Mersey! And way to go, Cory!!!”

- Michelle B.

“Our boiler went off overnight. We called Mersey and got an appointment in the morning. John Park came on time and fixed the boiler quickly and efficiently. Thank you John.”

- Claudia Wood

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Frequently Asked Questions

Just like furnace maintenance, your boiler should be maintained yearly. Annual maintenance from one of our expert technicians keeps your boiler running right. It’s a chance for a qualified boiler technician to make any minor adjustments necessary and an opportunity to catch any small repairs before they become bigger issues.

Boiler installation typically takes at least one full day. Depending on your situation, boiler installation can sometimes take up to two days. The type of boiler, the location of the boiler, and the type of home you have can all impact installation time. At your free in-home assessment, one of our technicians will be able to examine your furnace and provide a detailed time estimate.

The main difference between boilers and furnaces is how they heat your home. Boilers use water, whereas furnaces use air. With a boiler system, the boiler heats your home by sending hot water to your radiators, keeping your home warm through radiant heating. Furnaces, on the other hand, heat your home using forced air which is distributed through a vent system.

How often your boiler should be replaced depends on a variety of factors, but you can expect to replace your boiler about as often as a furnace or every 8 to 15 years. The model of boiler you have, the type (electric or gas), and maintenance can all influence the life of your boiler. If you think it might be time to replace your boiler, contact us for a free in-home assessment.

Our Commitment to You

We honestly believe that we are the best at what we do. By developing below guarantees, we hold ourselves accountable to our own standards, while giving you the peace of mind that our success hinges on your satisfaction. With Mersey Heating and Cooling, you know exactly what you’re going to get. We guarantee it.

Why Choose Us?


No Loopholes™

Your satisfaction is our priority. If you’re unsatisfied with our work, products, or materials within 2 years of the installation date, we’ll do our best to make it right. No Loopholes™, just accountability.


No Hassles™

We stand behind the work we do. If within two years of your installation, you find yourself without heat due to a system breakdown, we will repair the issue within 24 hours of your call, or we’ll offer you $1000 for your inconvenience. No Hassles™, just results.


Just Right™

Consistency is key. If your system doesn’t give you the set temperature you desire within the first 5 years, we’ll make the necessary adjustments, up to and including replacing the system at no charge. No fluctuations, Just Right™


We Respect You™

We hold our technicians to the highest possible standard, and expect everyone on our team to respect you, your family, and your property. If we fail to live up to these standards, we will gift you with our full 5-year system check-up package at no charge. We Respect You™.

Call Us. We’re Very Friendly



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Our technicians are NATE-certified, an industry-leading training organization.

Always Available

We’re ready to help – twenty-four hours a day, seven days a week, year-round.

Satisfaction Guaranteed

Our installations are protected by our guarantees.

Trusted Experience

We’ve been at work in the Greater Toronto Area for over 45 years.

Your Local Source

Locally owned, locally operated – we take pride in serving our community.


Our average Google rating of 4.8 stars proves our commitment to excellence.

24/7 365 SERVICE

647-366-5974 Request a Quote
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