CONTACT US TODAY (678) 897-9478

Wells Fargo financing options

At Duncan Heating and Air Services, we provide reliable heating and cooling solutions for homeowners in Dawsonville, Cumming, and Gainesville, GA. Whether you need fast repairs, a full system replacement, or routine maintenance, our experienced technicians are here to help.

Our Services

System Replacement🛠️
Duct Installation and Repair
Furnace Repairs🔥
Duct Cleaning
Preventative Maintenance✨

Why Choose Duncan?

  • Locally owned and operated

  • Honest recommendations — no unnecessary upsells

  • Experienced, professional technicians 👷🏻

  • Focus on long-term system reliability and efficiency

  • Proudly serving Dawsonville, Cumming, and Gainesville

Duncan Heating and Air is a family-owned and operated business that takes pride in every job, no matter the size. We proudly serve Dawsonville, GA; Cumming, GA; Gainesville, GA; Dahlonega, GA; and Alpharetta, GA. Whether you need your current heating and cooling unit serviced or repaired, or you’re looking for a new HVAC system, we are the trusted name you can count on.

Our goal is 100% customer satisfaction. At Duncan, we service all brands and can install any major brand, with a specialization in Trane and Daikin. Our mission is simple: by treating everyone with honesty and respect—just as we would want to be treated—we aim to build strong, long-term relationships with our clients.

Thank you, and may God bless!

Air Conditioning Repair❄️