Furnace Repair in Clayton, MO
A furnace that won't fire on a January night in Clayton is an emergency. Our techs diagnose and repair gas, electric, and dual-fuel systems safely — and we carry the parts to get your heat back fast.
Furnace Repair in Clayton
Clayton homeowners count on STL Air Pros for fast, reliable furnace repair. Our NATE-certified technicians serve all of Clayton and the surrounding St. Louis County area with same-day appointments, upfront flat-rate pricing, and 24/7 emergency availability. We repair, install, and maintain every major brand, and every job is backed by our workmanship guarantee.
HVAC in Clayton — Local Context
Clayton's mix of 1920s Tudor and Georgian homes in DeMun and Moorlands alongside modern condos downtown means we see everything from original gravity-furnace conversions to high-end variable-speed systems. Large estate homes often need zoning to balance comfort across multiple floors and additions.
What We Handle in Clayton
Furnace Repair in Clayton — Common Questions
Answers to the questions Clayton homeowners ask us most.
How much does furnace repair cost in Clayton?
Furnace repair in Clayton typically ranges from $150 to $700. Igniters and flame sensors are on the lower end; blower motors, gas valves, and control boards run higher. You get a flat, upfront price after the diagnostic — no hourly billing.
Is a furnace problem in Clayton an emergency?
It can be. If your carbon monoxide detector is going off, you smell gas, or the pilot flame is yellow or tilted, leave the house and call us immediately. No-heat calls in Clayton during freezing weather are prioritized for same-day dispatch.
Do you repair heat pumps in Clayton too?
Yes. Our techs are trained on heat pumps, dual-fuel systems, and electric furnaces in addition to gas furnaces. If your heat pump in Clayton is stuck in defrost or blowing cold air in heating mode, we can diagnose the reversing valve, defrost board, or refrigerant charge.
"Installed a ductless mini-split in our sunroom addition. The install was clean, they walked us through every setting, and the unit works perfectly. The room went from unbearable in summer to our favorite spot in the house."
— Priya Mehta, Clayton, MO
About Furnace Repair
Full details on our furnace repair service across St. Louis.
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