A pilot light that won't stay lit is one of the most common older-furnace calls we get — usually traceable to one of a few specific components.
Active units staged across Houston, Katy, Sugar Land & The Woodlands.
Safety takes priority over troubleshooting.
A faint gas smell briefly during relighting can be normal, but a strong or persistent gas odor near the pilot assembly means you should stop, leave the area, and call for professional service rather than continuing to attempt relighting.
| Houston HVAC Services | Industry Average |
|---|---|
| Free diagnostic with any repair | $89–$150 diagnostic fee |
| Live line answered 24/7 | Voicemail after 6pm |
| ~35-min average dispatch | 2–4 hour arrival windows |
| Written price before repair starts | Verbal quote, surprise total |
| NATE-certified technicians | No certification requirement |
| 1-year written repair warranty | 30-day or no warranty |
Every technician holds NATE certification and Texas TACLB licensing before ever stepping on your property.
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Most pilot light issues are affordable, straightforward repairs.
The most common and affordable pilot light repair.
When the gas valve itself needs service or replacement.
When the full pilot assembly needs replacement.
This safety component naturally wears out over years of use.
Dust affects flame quality, especially after months of seasonal disuse.
Air currents near the furnace can repeatedly blow out the pilot.
Standing pilot lights are less common in newer systems, which use electronic ignition instead.
"AC died at 9pm in July. Tech was at our door in 30 minutes and had it running again within the hour."
"Gave us the price upfront, no surprise charges. Compressor was clearly explained before they touched it."
"Called three companies at 11pm — only one picked up. Real technician walked me through safety steps."
This is most often a failing thermocouple, a safety device that shuts gas flow if it doesn't sense the pilot flame.
Many manufacturers include relighting instructions on the unit, but repeated failures need professional diagnosis rather than repeated relighting.
A yellow flame instead of blue can indicate incomplete combustion and should be checked professionally.
This is one of the more affordable furnace repairs, typically in the $120-250 range.
Most furnaces made in the last 15-20 years use electronic ignition instead of a standing pilot light.
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