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FeaturedVerifiedHVAC Companies in Oakville, Ontario

A1 Air Conditioning & Heating

Featured in Oakville Today 4.90 (1,751 reviews)(905) 844-2949

Based in Oakville, A1 Air Conditioning & Heating serves homeowners in the west GTA and businesses across the GTA. Established in 1967, it provides residential heating, cooling and indoor air quality solutions, along with commercial HVAC services.

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Business Highlights
  • The company is family-owned, with a history spanning three generations.
  • A1 describes its technicians as triple-certified.
  • A1 does not hire subcontractors for home service visits; its employees come to customers’ homes.
  • A1 lists ISO 45001 certification for occupational health and safety management.
Service Area

Hamilton, Ancaster, Dundas, Burlington, Oakville, Milton, Mississauga, Brampton, Georgetown, Toronto, North York and Scarborough.

Featured on ProsGrade. A1 Air Conditioning & Heating is one of 11 HVAC companies ProsGrade lists in Oakville, Ontario.

Listing details

11 services listed, including Furnace service, Air conditioner service and Heat pumps. Open 24 hours, 7 days a week. Rated 4.9 from 1,751 reviews.

  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

How A1 Air Conditioning & Heating compares with the other 10 HVAC companies on ProsGrade in Oakville, using public Google ratings and review counts.

  • Ranks in the top quarter of the 11 Oakville HVAC companies on ProsGrade by Google rating and review volume.
  • Rated 4.9 on Google, at or above the 4.9 average of other Oakville HVAC companies on ProsGrade.
  • Has more Google reviews (1,751) than 8 of the 10 other Oakville HVAC companies on ProsGrade.
  • One of 11 Oakville HVAC companies on ProsGrade rated 4.7 or higher from at least 10 reviews.

Services Covered

11 services
  • Furnace serviceAll makes and models serviced; repairs.
  • Air conditioner serviceAll makes and models serviced; repairs.
  • Heat pumpsDuctless retrofits for apartment buildings.
  • Water heatersTank and tankless options.
  • Indoor air quality systemsCommercial-grade UV lights and HEPA air purification systems.
  • Tune-ups and maintenanceFurnaces and air conditioners.
  • Gas fireplacesCleaning and repairs.
  • Duct cleaningCommercial duct sanitizing with botanical ingredients.
  • Commercial HVAC equipmentService and installation.
  • Commercial ductwork, gas piping and ventilationCustom ductwork and curb adaptors.
  • Commercial boilersTankless boilers installed in tandem for added capacity.

Reviews

What customers say

Reviewers praise the staff’s professionalism and guidance on equipment choices. One customer appreciated a technician staying until a furnace repair was confirmed working; another described a same-day installation with minimal cleanup.

Customer Reviews

Herman Yu

During a particularly cold evening, our heating system unexpectedly stopped working, creating an urgent need for assistance. The A1 team responded swiftly and efficiently, demonstrating their commitment to customer satisfaction from the very beginning. Scott, the sales representative, provided thorough guidance on available options and explained the benefits of incorporating a fan-powered humidifier into our installation. Bradley, the technician assigned to the project, handled the equipment setup with exceptional skill and professionalism. His meticulous approach ensured that every aspect of the installation met the highest standards, offering us peace of mind and comfort during the process. Based on this outstanding experience, I confidently and strongly endorse the expertise and reliability of the A1 team for any HVAC needs.
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Darlene Marie

I have just had my 23 year old furnace, that shut off last evening during this cold snap, repaired by a lovely gentleman, Bruce at A1 heating. I had to go one night without heat as I needed a part they had to order. But Bruce was here today and got my furnace started again! They were not sure the part would work, but Bruce did a thorough job and stayed until he knew the furnace was working. The company was very pleasant to work with. I definitely need a new furnace soon and I will be happy to work with this company again. In the meantime, our family is happy to heat on for this cold snap. Thanks A1 and Bruce
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Elizabeth Hibbert

Highly recommend A1! My husband and I needed a new AC and furnace system, so we gathered three quotes and spoke with three different sales consultants. Frank Sanelli from A1 immediately stood out because of his hands on technical and implementation experience. He clearly understood the system requirements and ensured that what he recommended was truly the best fit for our home. He also proposed an alternative electric solution, something the other companies did not consider, which turned out to be both highly efficient for our setup and the most cost effective option. The A1 installation team was professional and friendly, completing the installation same day. They left everything in great shape with minimal clean up afterward. Overall, we are extremely happy with the entire experience!
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Frequently Asked Questions

Does A1 provide emergency no-heat service?

It offers 24/7 no-heat emergency service to its customers.

Does A1 offer leasing for commercial HVAC projects?

It offers a commercial operating lease program with multiple terms and optional maintenance plans.

How does A1 handle commercial work around business operations?

A1 says its commercial installers work safely and try to avoid disrupting business operations.

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