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Air Conditioning Service in Toronto & Surrounding GTA

Home AC installs, tune-ups & 24 hour repairs at no extra charge. Get our lowest pricing of the year for up to $3,000 off a new system + no payments for 12 months.


How can our air conditioning services help you stay cool today?

Air conditioning installation, repair and tune-ups in the GTA.

Don’t let the sizzling heat take the sweet out of your summer.

Get no-sweat AC service from our 24/7 Toronto-area pros.

  • Save up to $3,000 on a new system
  • No payments, no interest for a year
  • No extra or emergency repair fees
  • Same day installation service
  • Local air conditioning techs near you

Save more on cool home comfort, all summer long.

Get service now.

Excellent company! My AC unit died on a Tuesday and Mersey had installed the new one by mid-day Wednesday (1 day)…during a heat wave. From the office personnel to the service personnel, professionalism was displayed at every interaction. I’m extremely happy with the service and the turnaround time. Everyone was friendly and easy to deal with as well.”

Up to $3,000 off the cost of a new system.

Plus, no payments or interest for a year.

Toronto & GTA homeowners: Take advantage of our limited time air conditioning pre-season sale for big big savings now and payments later.

Contact us today.

“AC air flow troubleshooting service. Service person Rocky was friendly, courteous and professional. Rocky identified the air distribution problem, answered our questions simply and easy to understand explanations. We now have professional guidance on how to fix the air flow problem. Been using Mersey for over happy years – my testament to my complete satisfaction with their service.

Never pay extra, after-hours, holiday or emergency air conditioning repair fees again.

24 hour AC service without any added charges.

Tired of choosing between melting in a midsummer mess and paying extra for service?

At Mersey Heating & Air Conditioning, there are no extra charges for repair service, no matter when you need it.

Count on us for round-the-clock, reliable service that always helps you save more.

Great job again by Mersey Heating and Air Conditioning. Logan came by to perform our annual maintenance on our Lennox Air Conditioner. Polite, professional and thorough job on the maintenance. I always go to Mersey for my air conditioning and heating needs (including purchasing our Lennox air conditioner a few years ago) and it is always a great experience. Thank you Mersey!

Find us for air conditioning service in Toronto & the GTA.

  • Toronto
  • Aurora
  • East York
  • Etobicoke
  • Markham
  • Newmarket
  • North York
  • Richmond Hill
  • Scarborough
  • Thornhill
  • Unionville
  • Vaughan
  • Whitchurch-Stouffville
  • Willowdale


No Loopholes™

If you’re not totally satisfied with our work within 2 years of installation, we will return your original investment and remove the system. No Loopholes, guaranteed.


No Hassles™

If the system we’ve installed breaks down within 2 years of its set up, we will repair the unit within 24 hours of the time you call us or we’ll give you $1000 for your inconvenience. No Hassle, guaranteed.


Just Right™

We guarantee that the system we set up will serve its function for a full 5 years without more than 2 degrees Celsius of temperature variance. If your new unit doesn’t uphold this standard, we will fix it as needed – including replacement of the entire system – at no cost. Just Right, guaranteed.


We Respect You™

When you go with Mersey, you can expect efficient, courteous, and integral work from all of our technicians. If you find that our technicians fail to respect you, your time, or your property, we will supply you with our full 5 Year Just Right™ Check-Up Protection Plan. We Respect You, guaranteed.

Perfect Temperatures

Our trademarked guarantees show that your satisfaction is our priority.

Always Ready

We are constantly prepared to help you in any HVAC emergency, and never charge for after-hours calls.

Real Experience

We’ve been at work in Toronto & the GTA for almost 50 years.

Certified Knowledge

All of our technicians are highly trained and have undergone extensive background checks.

People You Know

We’re locally based and operated and take pride in our reputation within our community.

Exceptional Reviews

We have an average Google rating of 4.7 and an A+ rating with the Better Business Bureau.

Save on residential air conditioning service with Mersey today.