Home Heat Pump Installation, Repair & Maintenance in Toronto and the GTA

Keeping your home comfortable all year round with 24/7/365 heat pump services. 

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Your Local Heat Pump Experts

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

  • Full replacement & installation of heat pumps for the home 
  • Fast, post-installation emergency repairs, available 24/7/365  
  • Friendly ongoing maintenance that prevents long-term problems following the setup of your heat pump 
  • 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!


Our Advantage

We only recommend the solutions that provide the best value to you and your home.

We’ll get to know your home comfort needs and help determine which option is right for you.

Our technicians earn the highest level of certification from Canada’s leading HVAC training organization.

The fully-qualified Mersey team is available to help you any day, any time.

What Customers Say

“Had excellent service today from John Park who was prompt, professional, and an excellent help. I’m not mechanical in the least so it’s such a relief to know my home’s central heating/cooling system has been checked and tuned up by an expert. Thanks!”

- M. Smith

“Emmanuel George is one of the nicest service experts I have had the pleasure to work with. Soft spoken with a smile. Taking his time to answer any and all questions. Besides his expertise, he is a one of a kind gentleman.”

- George R.

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Frequently Asked Questions

In the most basic sense, heat pumps move heat around your home. They can provide a variety of benefits depending on your home’s needs, whether you want your home to be cooler in summer or warmer in winter. In certain homes, a heat pump may be required when heat is not being distributed evenly or efficiently.

How long your heat pump installation takes will depend on a few different factors, but generally speaking, you can expect it to take between 4 to 6 hours. We offer free in-home assessments where one of our experienced technicians will evaluate your home and provide you with a detailed break-down.

If you have an air conditioner, a heat pump system will require approximately the same amount of space. Heat pumps also require an external wall in an area with good airflow, away from things like bushes and trees. The size needed will vary depending on the size of your home, but one of our Home Comfort Advisors can help recommend the best system for you.

Just like a furnace or air conditioning unit, a heat pump system requires yearly maintenance. Annual maintenance ensures your heat pump is running as efficiently as possible. It gives one of our technicians the chance to catch any repairs that need to be made and to give your system a general tune-up.

The size of heat pump system you need for your home depends on a variety of factors. The size of your home, the type of heat pump, and what benefits you’re looking for can all influence what size of heat pump is right for you. One of our Home Comfort Advisors can assist you in choosing the right heat pump for your home.

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



Book Online


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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