Over 50 years of trusted reliable service and installation in the GTA

Furnace and air conditioner repair costs are real. The question isn’t if, it’s when will it happen?

SuperCareTM equipment protection coverage delivers the peace-of-mind of never again having to worry about unexpected equipment repair bills. SuperCareTM is SuperSpecial because it’s constructed just for you. We don’t believe in “one size fits all” our SuperCareTM coverage is constructed based on your specific situation and your specific equipment.

We honour the trust you’re placing with our expertise, the top quality products and equipments we use, and our reputation for integrity.

A1 Service Areas

Why Choose A1?

  • Locally owned and operated
  • Certified & Licensed technicians
  • Best warranties in the industry
  • Trusted for 50 years
  • Daikin Comfort Pro

What's new at A1?

Remember to Check on the AC Condenser During the Summer

An important part of the cooling system is the condenser unit as it plays a crucial role in removing heat from the air inside your home. However, since the AC condenser is located outside, it can be easily overlooked by homeowners. It’s important to occasionally check on the condenser and call for AC service if you notice any problems with the outdoor unit.

What Is the Best Cooling Option for My Home?

Before investing in a new air conditioner, it’s important to understand which cooling option best suits your needs and home.

Experience the Daikin Difference

A1 Air Conditioning & Heating is proud to carry a wide selection of Daikin home comfort products, a global brand that is recognized for its innovation, efficiency and overall quality.

How Long Does an Air Conditioner Last?

To give you a better idea of how long your air conditioner will keep you cool and comfortable, we’ve outlined three main factors that can affect a cooling system’s lifespan.

Our Products

A1 Services & Repairs all makes and models of HVAC equipment.
We are also Licensed Lennox Dealers and Daikin Comfort Pros!


A1 History



Walter Messenger first learns about refrigeration during WW II as a Royal Engineer Tank Mechanic for the British Army.


After the war, Walter is hired as a London bus mechanic.


Walter and the Messenger family immigrates to Canada.


Walter decides to open his own business, A1 Air Conditioning & Heating is born!

SNAP Financing

SNAP Financial Group is Canada’s premier consumer finance company, with a focus on custom financial solutions and systems. We’re proud to partner with SNAP Financial, an industry leader in home owner financial solutions.


Contact A1 Air Conditioning

Inquiries or questions regarding our products or services? Use the form below & a customer service representative will be glad to help!

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2017 Heating & Cooling Incentive

The Independent Electricity System Operator (IESO) and Ontario’s Local Distribution Companies are pleased to announce that they will continue to offer the existing HEATING & COOLING INCENTIVE until June 30, 2017.

A1 Testimonials

John Schunk

5 5 1
#80816 Always a Great Experience dealing with this company and their people. Twice a year we have our heating and air conditioning inspected and freshened up so that we get efficient performance throughout the year. Today, was no exception. Our A1 technician completed his inspection of our furnace, cleaned it and made necessary adjustments. He also reviewed the best practices for humidifying our home during winter months and de-humidifying during the summer months. Always something to learn. Much appreciated.

Adam Smith

5 5 1
Amazing company! I had a problem with my furnace so that there was no heat. I had called another company who spent 1.5 hours trying to diagnose and change parts to repair it to no avail. Frustrated at not having it repaired, I checked the online reviews looking for a solid company with a good reputation and settled on A1 thinking I might need a new furnace. "John" attended the house and was very professional and methodical about his work. He spent approx an hour doing a variety of tests and inspections of the various components. He determined that the gas burners needed a thorough cleaning inside even though they first appeared not too bad visually. He quickly got me up and running and now the furnace runs great. John found the problem that the other company missed. The price for the service was very reasonable. I will definitely use A1 again should the need arise. Thank you A1. #80812

Debbie Chisholm

5 5 1
#79622 We have been using A1 for many many years for both our air conditioners and furnaces. We have purchased all equipment from A1over the years for 2 homes. Salesmen are knowledgeable and a pleasure to work with. Maintenance service is always completed thoroughly and we know when they leave our equipment will be running well. We would not go anywhere else and we would highly recommend A1 Air Conditioning & Heating.

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