Tune-Ups & Maintenance

It’s not an emergency, but you’ve been thinking that your furnace or air conditioner is getting on in years and could probably do with a tune-up. We service all makes and models of furnaces, air conditioners and hot water tanks. We also clean and repair gas fireplaces and offer duct cleaning services.

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A1 Emergency Service

Oh no! My furnace won’t turn on and we are having our first blizzard of the year! Or my AC is not running properly and we can’t sleep!

We offer 24/7 no-heat emergency service to our customers – because emergencies never happen at convenient times. Just call us and we’ll send one of our technicians right over. Yes, even on Christmas morning.

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Almost all repairs to a furnace or AC require a fully licensed A1 Technician to come to your house. Proper diagnosis of the problem is key.

While we don’t recommend repairing your equipment without a licensed Technician, however there are some things you can check as a homeowner.

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Our A1 Technicians

Our triple-certified A1 Technicians are experts in their craft. They are up-to-date with the latest technology and tools to do the job right. We do not hire sub-contractors, so you can relax knowing that it will always be an A1 employee coming to your home.

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Our Service Area

With coverage across the GTA, A1’s service area reaches from the greater Hamilton area through Halton and Peel, and into Toronto including North York and Scarborough.


A little bit of knowledge goes a long way. Learn more about servicing your HVAC equipment.

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