A cracked or failed hot surface ignitor is one of the most common reasons modern furnaces won't start — a straightforward, affordable fix once diagnosed.
Active units staged across Houston, Katy, Sugar Land & The Woodlands.
A common but affordable point of failure.
These components reach very high temperatures to ignite gas but are made of thin, brittle material — normal vibration, age, and even oils from bare-hand contact during installation can cause premature cracking.
| 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.
Live tech walks you through breaker and thermostat checks while a truck is routed.
Refrigerant pressure, electrical, and airflow tested — not a guess.
You approve a flat, itemized price before any part is touched.
Most repairs completed same-visit from a fully stocked truck.
We confirm supply-air temperature drop before we leave.
Fast diagnostics for warm air, no cooling, and dead systems.
SIZED RIGHTLoad-calculated systems, not oversold tonnage.
SEASONALTune-ups that catch failures before peak summer.
WINTER READYFurnace and heat pump service for cold fronts.
Nights, weekends, and holiday dispatch.
Sealing and repair for even cooling and lower bills.
AIR QUALITYPurifiers and humidity control for cleaner indoor air.
COMMERCIALRooftop units and multi-zone systems for facilities.
One of the more affordable common furnace repairs.
Most common hot surface ignitor replacement.
Higher-durability silicon nitride ignitor upgrade.
Additional cost if flame sensor also needs replacement.
Houston's short heating season means fewer but more stressful startup cycles per ignitor.
Ignitors have a limited lifespan regardless of climate.
Power surges can accelerate ignitor wear.
Ignitors touched with bare hands during past service can fail prematurely.
"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."
If your furnace's blower runs but no heat is produced, and you can see the ignitor doesn't glow, this points to ignitor failure.
Most last 3-7 years depending on type and usage, though sudden failure can happen at any time.
While technically possible for some DIYers, proper diagnosis to confirm the ignitor (not another component) is the actual cause is valuable, plus careful handling matters for longevity.
This can happen from improper handling (oils from bare hands) or an underlying electrical issue causing repeat failures.
This depends on your furnace's specific warranty terms — we check this before quoting.
Same-day dispatch open now across Houston, TX.