Own Your Air

Get closer to having that perfect temperature. Humidity just right. Air that is clean and filtered to help you stay healthy and happy.
A1 can help you manage the air in your home. That is our promise.

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Perfecting the air we share

Save $1900

on a Genius Furnace + AC Combo

on a high-efficiency Daikin furnace + AC + smart thermostat combo.
Plus, defer your payment until Spring 2022!

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Perfect comfort, perfect peace of mind

Only $99

Let A1 get your furnace winter-ready. Book before November 30th to get a 32-point furnace inspection & cleaning for only $99!

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Surround yourself with warmth this fall

Only $99

Get a fireplace inspection & cleaning for only $99!
Act now! This limited-time offer expires on November 30th, 2021.

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A1 SuperCare Protection Plan

Unlimited Repairs & Service Calls

Our SuperCare Protection Plan guarantees a worry-free summer when it comes to making sure your air conditioner is running in tip-top condition. Never be concerned about service calls or the high cost of repairs. Summer is for fun, keep it that way!

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Save $500 on a Genius Furnace + AC Combo

on a Genius Furnace + AC Combo

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A1 Indoor Air Quality

Purify the Air in Your Home or Office

Detoxify your air and get rid of harmful mould, dust and bacteria. Our HEPA air purifiers are so efficient that laboratory testing revealed removal of 95% of particles at 0.1 microns!

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A1 Referral Program

Refer a Friend & Receive $100

We love it when you tell your friends about us.
Refer a friend to A1 to install a new furnace or A/C and we’ll send you a $100 as a thank-you.

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The best heating and cooling specialists in the GTA

With a proud history guided by three generations of the Messenger family, A1 Air Conditioning & Heating is dedicated to serving our customers with the best HVAC products and services for your home and your business.

Established in 1967, we’ve been a trusted partner for more than 60,000 customers with thousands of installations and repairs over the past 50+ years. Our years of experience and expertise is evident in the quality of our work and our many happy customers.

Quality. Experience. Pride. You can count on A1.

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Indoor Air Quality


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  • Furnaces and air conditioners
  • Installations and repairs
  • Indoor air quality
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A1 Service Areas

  • Hamilton
  • Ancaster
  • Dundas
  • Burlington
  • Oakville
  • Milton
  • Mississauga
  • Brampton
  • Georgetown
  • Toronto
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Why Choose A1

Over 50 years of delivering effortless home comfort solutions to our customers!

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