Heating and Air Conditioning in Decatur
Decatur sits on the Tennessee River in Morgan County, southwest of Huntsville. North Alabama Heating & A/C has served North Alabama since 1977, and we bring the same straightforward service to Decatur homes for heating, cooling and duct work.
Call (256) 534-2941 or request service online to schedule a visit.

Heating and Cooling for Decatur Homes
Decatur summers are humid, and your air conditioner does two jobs in that weather: it cools the air and pulls moisture out of it. When a system is oversized, low on refrigerant or overdue for service, the house can feel cool but clammy. We look for those problems and fix the cause, not just the symptom.
Decatur has many established neighborhoods with older homes, where ductwork, insulation and aging equipment all affect comfort. We look at the whole system, not just the unit outside.
A Decatur Customer Review
“Chris is the best technician you’ll find”
Kevin G., Google review
What We Do in Decatur
Humidity is a common thread in the summer calls we get from Decatur, so moisture control is part of every cooling visit.
- AC repair for clammy rooms, iced-up lines and systems that run nonstop
- AC tune-ups that catch drain and coil problems early
- New air conditioners sized to run long enough to dry the air
- Heat pump installation and heat pump repair
- Furnace repair and furnace installation
- Duct repair and duct replacement for older homes with tired ductwork
- Maintenance plans for spring and fall service
For more on why system size affects humidity, read What Size AC Do I Need?
Local Notes for Decatur
Decatur sits along Wheeler Lake on the Tennessee River, next to the Wheeler National Wildlife Refuge. We serve homes in the Old Decatur and Albany historic districts, where many houses date to the 1800s and early 1900s, as well as neighborhoods such as East Acres, Irvington and Brookmeade and the areas around Point Mallard Park, Delano Park and the Cook Museum of Natural Science.
Permits in Decatur
Inside city limits, mechanical permits come from the City of Decatur Building Department, and replacing a heating or cooling system typically requires one, even when the new unit matches the old one. Homes outside the city fall under Morgan or Limestone County rules. We handle any permit your job needs.
Nearby, we also serve Athens, Madison, Harvest and Huntsville.
Schedule Service in Decatur
If your home feels muggy, uneven or just not as comfortable as it should, call (256) 534-2941 or book online. We are open Monday through Saturday, 7 AM to 7 PM.
Decatur HVAC FAQs
Why does my house feel humid even when the AC is running?
An oversized system that shuts off too quickly, a dirty coil, low refrigerant or a fan set to run constantly can all leave moisture in the air. A service visit will show which one it is.
Do I need a permit to replace my AC in Decatur?
Inside Decatur city limits, replacing a heating or cooling system typically requires a mechanical permit from the City of Decatur Building Department. We pull it and schedule the inspection.
Do you install heat pumps in Decatur?
Yes. We install and repair heat pumps, including compact side discharge models, along with furnaces and air conditioners.
What are signs of duct problems?
Rooms that never get comfortable, weak airflow from some vents, extra dust, and power bills that keep climbing can all point to leaks or poorly connected ductwork.