A1 Air Conditioning & Heating
HVAC contractor in Oakville, ON.
In A1 Air Conditioning & Heating's own words
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.
- Trade
- HVAC contractor
- Business address
- 1420 Cornwall Rd #3, Oakville, ON L6J 7W5, Canada
- Telephone
- (905) 844-2949
- Website
- a1air.ca
- Hours
-
- MondayOpen 24 Hours
- TuesdayOpen 24 Hours
- WednesdayOpen 24 Hours
- ThursdayOpen 24 Hours
- FridayOpen 24 Hours
- SaturdayOpen 24 Hours
- SundayOpen 24 Hours
From the business's Google listing, checked Oct 2026
- Register
- ON register
Recorded as supplied and as found in public sources. This register makes no credential or quality claim about any business; check license status with the provincial licensing body.
Google Reviews
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I have been using A1 Air Conditioning for a while now and really like them. We had our furnace and air conditioner replaced by A1 given the age of our existing HVAC system. Dallas and his helper did the installation today. They did an amazing job - very professional, knowledgeable, and outstanding quality of work. Dallas clearly explained the features of the system and showed how to operate it. I would highly recommend using them - you can’t go wrong!
RD
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Samir is amazing guy, The Ac and furnace inspection he did for me was perfect. I highly recommend this company. Thank you very much Samir.
003282 W.
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Can't say enough about A1. Their work is excellent. Their staff is professional. We have had furnace and AC installed at our previous home and at our new home. Very happy with the work both times. They've also done our duct cleaning. Very good work there as well.
Ahmed A.
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A1 did an outstanding job with my AC installation!!!! They came early so I could make an appointment that I had. They went above and beyond to ensure that I was satisfied. The installation team were professional, polite and after they were gone you have never guessed that any work was done the work area was impeccable. In the past I had other systems installed with Reliance and it was clear to me today that A1 provides a much superior service by not subcontracting out and ensuring they have incredible staff. I will only be giving my business to A1 and recommending them to others. Thanks again for such great service!!!
Michelle A.
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We recently had a new air conditioner installed by A1 Air Conditioning & Heating, and the entire experience was teriffic! Every person we dealt with was professional, friendly, and incredibly knowledgeable - Mitch, Brett, Alex (sales), and expecially Rob and Kyle (install team). A1 Air is an exceptional company with exceptional people and I'd strongly recommend them to anyone looking for heating and cooling service!
Steve G.
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So my 92 year old mother relied on this company to do a good job and be honest and this is what she got!! This company charged her $2,000 + an additional $350.00 when they came back to "Check what was wrong with the unit" and didn't fix anything!!! They installed a WINDOW unit that they installed in the wall instead of giving her the correct wall unit, they gave her the information/directions and left. There is insulation missing all around the sides so who knows now how she will be in the winter with cold air able to come through! they added a huge cover in the back OVER the old one so now the air conditioner runs non stop because it doesn't get enough air flow! What a SCAM and very disappointing that a company would take advantage of the elderly! all this and they charged her $2,350.00 WOW unbelievable and sad!
Nita M.
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Samir came to m,y house and the Technician was very polite friendly and very knowledgeable. He completed the job everything was done correctly and I am extremely pleased with his work. I would recommend him to anyone who wants a proficient Service Technician.
Joy L.
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We recently moved into our new home and hired A1 Heating & Cooling to install a brand new air conditioner, furnace, and tankless hot water system. From start to finish, the experience was exceptional. The entire team was professional, friendly, knowledgeable, and incredibly organized. The installation was seamless, and they handled virtually everything without needing much from us, which made an already busy move so much easier. Their workmanship and attention to detail were outstanding, and the finished installation has added tremendous value and peace of mind to our new home. It’s rare to find a company that delivers on every promise, but A1 Heating & Cooling absolutely did. A true 10/10 experience. We wouldn’t hesitate to recommend them to anyone looking for honest, high-quality HVAC work.
Herschel K.
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We had an excellent experience with A1 Heating and Air Conditioning from start to finish. Joe in Sales was knowledgeable and honest. Dallas and crew were outstanding—professional, efficient, and respectful of our home. They installed our new heat pump and air conditioner seamlessly, and the quality of their work was excellent. We couldn’t be happier with the service.
Mary O.
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We have been using A1 Air Conditioning Services for years and when our air conditioning unit broke down in the middle of the heatwave A1 provided us with exceptional service. They responded in a timely manner and helped us find the best available solution to meet our needs. Furthermore, the technicians that they sent for the installation of our new unit, Dallas and Randy, were extremely professional, helpful, friendly and went over and above to make sure that we knew how to work our new thermostat. Dallas did incredibly work with all connections, into the house and into the furnace room. His attention to detail was very much appreciated! Thank you for the excellent service.
Vincent M.
About A1 Air Conditioning & Heating
A1's heating and cooling work since 1967
A1 Air Conditioning & Heating says it has operated since 1967 under three generations of the Messenger family. The company works on air conditioning, heat pumps, maintenance, tune-ups and indoor air quality products for homes and commercial properties.
A1 Air Conditioning & Heating also offers 24/7 no-heat emergency service. York is among the brands it services, and the company offers financing and leasing options.
Oakville's round-the-clock HVAC contractor
Reviewers commonly mention technicians' professionalism, installation work, explanations of equipment operation and prompt appointments; the reviews also include lower ratings.
The company describes installations and repairs among its work, alongside furnace and air-conditioning tune-ups. Its indoor air quality offerings are presented for buildings, while its heating and cooling work includes both residential and commercial customers.
Heating and cooling in Oakville
Environment Canada normals for Oakville, converted to Celsius, show an average temperature of 7.1°C, an average high of 12.9°C and an average low of 1.3°C for the 1981-2010 period.
Services, brands and warranty details come from the company's own website. Ratings, hours and reviews come from Google. Town figures come from Statistics Canada and Environment Canada.
More HVAC contractors in Oakville
About Oakville
| Population | 213,759 (2021) |
|---|---|
| Average yearly snowfall | 135.9 centimetres |
Sources: Statistics Canada, 2021 Census. Environment and Climate Change Canada, Canadian Climate Normals 1981-2010.