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The HVAC Pros at Gagne, Keeping Your House Comfortable for Years To Come!

Choosing the right HVAC contractors is a critical decision for every homeowner. The right contractor will provide exceptional HVAC solutions, keep your heating and cooling systems running smoothly, increase your energy efficiency, and ensure the safety of your family. That’s where we shine.

Gagne Heating & Air Conditioning is a professional HVAC company serving the residents in and around the Alpharetta, GA, area all year long. With decades of industry experience, we specialize in services for residential homes, businesses, multi-family housing, and new construction, and we offer a range of high-quality, energy-saving products.

Trust our experts for all your needs. Contact our HVAC contractors today for quick and reliable service!

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A Leading HVAC Company in Alpharetta, GA

Our homes are our sanctuaries — places of comfort and solace from the chaos of the outside world. As such, making sure our homes are comfortable environments is essential to our overall well-being. One of the key components of achieving this is the professional installation, repair, and upkeep of your HVAC systems.

It is critical to your HVAC system’s effectiveness, efficiency, and longevity to have an established HVAC company perform essential services, ensuring your home’s heating and cooling systems are in optimal condition. Whether you are looking for a new installation or preventative maintenance, Gagne’s HVAC contractors have you covered.


Whether you need an indoor heating or cooling system, proper installation of the units is essential to the life of the system and its efficiency. Our expert HVAC contractors understand how crucial it is to have functional AC, heating, and air quality systems installed in your home. From duct-free split systems and heat pumps to thermostats and humidifiers, you can expect only the best HVAC installations from Gagne’s HVAC systems experts to keep you and your family comfortable in your home.

Repairs & Replacements

No matter how well an HVAC system was installed, there might be times when you will need a professional HVAC systems expert to repair a faulty thermostat, wiring issues, leaking ducts, or any number of other problems you may encounter. The Gagne team of HVAC contractors is proficient in all types of equipment repairs and replacements, so you are guaranteed to receive the best quality service and HVAC products every time. In most cases, Gagne is able to offer free, same-day estimates for replacement.

Maintenance Services

One of the essential yet neglected services among homeowners is HVAC system maintenance. Your cooling and heating units are responsible for conditioning the air and filtering out allergens and pollutants to help keep you and your family comfortable and healthy, so proper care and servicing of the equipment is a mandatory practice. Bringing in the trusted local HVAC contractors at Gagne is an excellent way to identify problems, perform quick fixes, and deter costly repairs. If you want to prevent HVAC issues, consider joining the Gagne Comfort Club for annual HVAC maintenance and additional incentives.

Commercial HVAC Company

As a leading HVAC company in Alpharetta, GA, Gagne also performs commercial services for businesses located in the communities that we serve. Our HVAC technicians are trained, certified, and experienced in most types of HVAC equipment. If you are looking for commercial technicians you can trust to handle the heating and cooling needs of your business, turn to Gagne for high-quality HVAC solutions.


What Can You Expect From Our HVAC Technicians?

Our quality-service HVAC technicians, all of whom are licensed and insured, are trained to address the needs of your home or business specifically. Each team member of our HVAC company undergoes thorough training so that they can effectively pass on their knowledge to our customers. They can assess your options for thermostats, air quality systems, and additional products and can advise you on what heating and cooling equipment is best to buy for your home or commercial space.

Our team will arrive promptly and professionally dressed, ready to diagnose the issue at hand. We fully explain the problem and necessary solutions in easy-to-understand terms so you are always in the loop. We use quality, trusted brands for all our repairs, ensuring top-of-the-line service that will last for years to come.

100% Satisfaction Guaranteed

At Gagne, we are committed to the satisfaction of our customers, which is why we provide the best residential and commercial heating and cooling services in the region. We send out only certified and trained technicians who use the most effective and efficient repair and installation methods available. Additionally, we encourage our valued customers to join the Gagne Comfort Club for preventative maintenance, priority service, and excellent discounts on repairs. For more information on how Gagne can help you with your HVAC needs in and around the Greater Metro Atlanta area, contact us today!

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Contact Us for Fast, Reliable, Friendly Service

If you need help keeping your home comfortable, Gagne Heating & Air Conditioning is the company to call. Our certified and experienced HVAC technicians are dedicated to providing you with fast, reliable, and friendly service.

We offer our services to customers in Alpharetta, GA, and the surrounding areas. Our technicians are always around the corner, ready to provide you with top-notch solutions. Check out our location page for more information about our service areas.

In addition to our expert service, we also offer financing options to help you afford the repairs or replacements you need. We understand that HVAC issues can be expensive, and we want to ensure that you’re able to get the service you need without breaking the bank.

Whatever your HVAC needs may be, be assured we’re here to help. Contact us today to schedule an appointment or to learn more about our services!

“Gagne installed new HVAC units for me in the Spring. They did an awesome job and the units are great. If I had known they would make such a difference in the comfort of our home I would have done it year ago. I have recommended Gagne several times and everyone has been equally happy.”

-Dave L.

"The lady I talk on the phone to schedule the technician was brilliant. She promptly understood my issue with the furnace at the basement and scheduled the technician to come and troubleshoot it right away. The technician was courteous and knowledgeable. He identified the issue and we are now waiting for parts to complete the repair. Great service. Thank you"

-Juan P.

“I had a great experience with our Gagne technician. He was on time, very knowledgeable and even went back up into my attic to help me label some vents when he was done and about to walk out the door which was really helpful! I’ve been using Gagne for years…always a good experience.”

Tiffany G.