Houston furnace repair, from ignition to heat exchanger
Houston furnaces work hard during the few cold snaps that matter, and the most common failures — dirty flame sensors, failed igniters, bad gas valves, and tripped limit switches — are all repairable. We're combustion-analyzer certified, which means we don't just swap parts; we verify the burn is clean and safe, so you're not left with an undiagnosed carbon-monoxide risk.
Common furnace repairs we make
We fix gas furnaces (ignition systems, flame sensors, gas valves, inducer motors, pressure switches, control boards), heat pumps (reversing valves, defrost controls, auxiliary heat), and electric furnaces (heat strips, sequencers, limit switches). We also handle the Houston-specific issue of rusted or corroded flues and drain lines that condensation and humidity accelerate.
Flat-rate pricing on heating repair
You get one fixed price before work starts. Typical furnace repairs range from about $150 for a flame-sensor cleaning to $300–$700 for an igniter, gas valve, or inducer motor. We never bill by the hour, and the diagnostic fee is waived when you approve the repair on the spot.
Before the cold snap: the 28-point heating check
The best furnace repair is the one you don't need. Our 28-point heating inspection catches a weak igniter, a cracked-hairline heat exchanger, or a dirty burner before a January cold front turns it into a no-heat emergency. We recommend it once a year, ideally in the fall.
Frequently Asked Questions
Why does my furnace keep turning off after a few seconds?
That's the classic sign of a dirty flame sensor. The board detects no flame signal and shuts the gas valve for safety. It's usually a quick clean — but we verify the whole ignition sequence to rule out a deeper issue.
Do you repair heat pumps too?
Yes. Heat pumps account for a growing share of Houston HVAC, and we troubleshoot reversing valves, defrost boards, and low-charge issues alongside traditional gas furnace work.
Is a furnace making a boom or delayed ignition dangerous?
A delayed ignition 'boom' means gas is pooling before it lights — it can damage the heat exchanger and is a safety concern. Shut it off and call us; don't keep cycling it.
How much is furnace repair in Houston?
Most furnace repairs run $150–$700 flat rate. A full heat-exchanger replacement is the exception and usually signals it's time to compare repair vs. a new furnace.
HVAC247PRO serves the entire Houston metro — Houston, Katy, Sugar Land, Cypress, Pearland, Spring, The Woodlands, Humble, Kingwood, Baytown and more — 24/7. Licensed Texas contractor (TACLB00105442E, TACLA95904E). Call (346) 451-1559 or book an appointment today.