What Should I Do If My Heater Is Not Working in My House?

Check your thermostat, breaker, and filter first; then call for service if it still won’t heat. Our technicians diagnose and repair furnaces, boilers, heat pumps, and ductless mini‑splits in the greater Atlanta area, Alpharetta, Marietta and Roswell and nearby. Same-day service is included with our Total Comfort Service Plan.

Quick checks:

• Set thermostat to Heat and 2–3° above room.
• Replace a clogged air filter.
• Confirm furnace switch is on and breaker isn’t tripped.
• Close the furnace door fully.
• For mini-splits, verify mode and clean the indoor filter.

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Updated: 2025-11-26

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Need help in Roswell, GA? Call 770-341-2178 or book online.

"Changed out furnace and AC in 6 hrs." — John B.