Gwinnett County's Most Trusted
Air Conditioning & Heating Contractor

For over 39 years Gwinnet County has trusted A-1 to provide the best value in HVAC repair, maintenance and installation.
Discover What Makes A-1 Different

The Charges Were Actually Less Than I Expected

“I was impressed. I called expecting a delay. He came that evening. He solved the problem and had it running in an hour. I asked if he could do some cleaning to the condenser unit and he did even though it was already late in the evening. The charges were actually less than I expected!"

David H. in Lilburn, GA

Fast, Friendly and Professional

“Larry is my new best friend. He fixed the leak on my Air conditioner, recharged it. Fast, friendly and professional. Now I'm just "chillin"

Karen K in Lawrenceville, Georgia

I Appreciate His Honesty

“I know the repairs that he recommended were accurate because the service company I normally use have been telling me this, so I appreciated his honesty. I also appreciate his honesty with the payment arrangement made.”

Terry D. in Lawrenceville, Georgia

Call 770-921-4662 To Schedule An Appointment

Always Honest, Affordable and On Time

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Gwinnett County’s Leading Heating & Air Conditioning Service Provider

A-1 Heating and Air is a family owned HVAC Company that has been treating our customers the right way in Gwinnett County for the past 39 years. We’ve earned an A+ Better Business Bureau rating because we’re honest, knowledgeable and treat our customers like family. Whether you need your current unit repaired or need an entirely new system - we can help.

All of our repairs come with a 1 year labor warranty and all of our new unit installations come with a 2 year labor warranty. You will never receive pressure from us to make an on the spot decision. Take the time to do your research and feel free to call our competition. In the end, we’re confident that you will discover that the experience and competitive pricing of A-1 Heating is second to none.