Heating & Cooling

Specialists in Greater Toronto

Current Promotions

Emergency Service

Commercial Service

Trusted for Over 50 years

Welcome to A1 Air Conditioning & Heating, the GTA’s finest residential and commercial heating and cooling contractor. With a proud history dating back to 1967, our third generation family-owned company serves more than 10,000 customers.

We’ve built our business by treating our customers in the best possible way…like we would like to be treated.

With over 50 years of experience designing, installing, and servicing heating and cooling systems, we can help you choose the most cost-effective system for your home or business.

Looking to have a new furnace or AC installed quickly and expertly? Need your furnace or AC repaired by a caring, knowledgeable, reliable technician?

We repair and service all makes and models 24/7 and offer the GTA’s best emergency service.

Welcome to A1 Air Conditioning & Heating, the GTA’s finest residential and commercial heating and cooling contractor. With a proud history dating back to 1967, our third generation family-owned company serves more than 10,000 customers.

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We’ve built our business by treating our customers in the best possible way…like we would like to be treated.

With over 50 years of experience designing, installing, and servicing heating and cooling systems, we can help you choose the most cost-effective system for your home or business.

Looking to have a new furnace or AC installed quickly and expertly? Need your furnace or AC repaired by a caring, knowledgeable, reliable technician?

We repair and service all makes and models 24/7 and offer the GTA’s best emergency service.

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HEATING
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COOLING
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INDOOR AIR QUALITY
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COMFORT

Get Emergency
Service Fast!

Over 50 Years of Exceptional Value and Service

Associations

Why Choose A1

What Our Customers Are Saying

Google Ranking

4.8 252 Reviews

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 […]

— John Schunk

Homestars Ranking

 93%  296 Reviews

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 […]

— Debbie Chisolm

Facebook Ranking

13 Reviews

Our experience today with A1 A/C & Heating was excellent — as it has been for over 14+ years. Each year we renew Maintenance Contracts for our Furnace & A/C for equipment A1 installed over 12+ years ago — and enjoy year-round care-free climate control in our home […]

— Rod Saunders

A1 Service Areas

Service Areas Map
  • Oakville
  • Burlington
  • Hamilton
  • Milton
  • Mississauga
  • Toronto
  • North York

Current Promotions

March Madness Sale

SAVE UP TO $4,479 during A1’s March Madness Home Comfort Sale! Purchase OR finance a new A1 Genius air conditioner OR furnace OR both before March 31, 2019, and get a 30% discount from the regular price!

Get Emergency Service Fast

A1 is here to assist in repairs or maintenance to prevent the need for repairs. Don’t talk to an answering machine or get lost in a voice mail system. We have a real, live person available to answer your calls.

GreenON

GreenON Rebates have cancelled as of June 19, 2018 but that doesn’t mean your savings did! There are still available rebate programs. Contact A1 today to find the right one for you and your needs!

Whether you’re urgently replacing equipment or upgrading to a more energy efficient system, it’s good to know that the solution that’s best for your home can be yours through affordable financing.

What's New at A1?

Daikin Fit

A1 Introduces the New Daikin Fit: One of the World’s Quietest and Slimmest ACs

A1 Air Conditioning & Heating is so excited to introduce the new Daikin Fit, one of the world’s quietest and slimmest central air conditioners. Daikin designed this smart AC system to meet the needs of today’s urban homeowner’s budget, comfort…

Keep Your Furnace Air Intake and Exhaust Clear from Snow This Winter

Just like your car, a furnace needs to be maintained and checked regularly to keep running at its very best. We recommend getting a qualified HVAC technician to check and clean your furnace each year. In addition, you should check…

FAST
FACTS

Depending on your lifestyle and filter type, you might have to change it every 30 days or only every six months.

One of the best ways to ensure that your heating system is operating efficiently and safely is to schedule annual professional maintenance.

To increase efficiency and reliability, all air conditioners should be professionally inspected and tuned-up before the start of summer.

For professional cooling system repair, don’t hesitate to contact A1 Heating & Air Conditioning.

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