Winters in Southeast Texas are short, but when a cold front hits, you need heat right away. Reliable Air & Heat repairs gas and electric furnaces for homeowners in Conroe, TX and across Montgomery County. We find the root cause, explain it clearly, and get your system running safely again.
Need a new system? Explore our gas furnace installation and repair page or learn the different types of furnaces.
Warning Signs Your Furnace Needs Repair
- No heat or weak heat from the vents.
- Furnace will not turn on, or starts and shuts off quickly.
- Banging, squealing, or rattling noises during operation.
- Yellow burner flame or a burning smell. Turn the system off and call us right away.
- Higher heating bills. See our tips to lower your winter heating bill.
Our Furnace Repair Process
Safety and combustion check
We inspect the burners, heat exchanger, flue, and gas connections so the furnace operates safely.
Full diagnosis
We test the igniter, flame sensor, thermostat, limit switches, blower motor, and control board to pinpoint the failure.
Repair and verify
After the fix, we run a full heating cycle and confirm temperature rise, airflow, and safe operation before we leave.
Common Furnace Problems in Montgomery County
Dirty flame sensors, failed igniters, clogged filters, bad blower motors, thermostat faults, and tripped limit switches cause most no-heat calls. A clogged filter alone can force a system to overheat, as we explain in the problem with clogged air filters.
Prevent No-Heat Emergencies
Book a tune-up before the first cold snap. Our planned maintenance program and our fall HVAC maintenance guide show what a seasonal check covers. If your furnace is near the end of its life, we also offer replacement with financing.
Furnace Repair Across Our Service Area
We serve Conroe, The Woodlands, Magnolia, Montgomery, Willis, Spring, Shenandoah, Oak Ridge, and New Waverly.
Why Choose Reliable Air & Heat?
Licensed (TACLB28011E) and BBB-accredited. We have served Conroe and Montgomery County since 2009, and our technicians explain the problem and the price before any work starts.
Frequently Asked Questions
Why is my furnace blowing cold air?
The thermostat may be set to fan only, or the igniter, flame sensor, or gas supply may have failed. A technician can diagnose it safely.
Is it safe to run a furnace that smells like gas or burning?
No. Shut it off, ventilate the home, and call your gas utility or emergency services if you smell gas, then call us for repair.
How often should a furnace be serviced?
Once a year before heating season is the standard recommendation.
How long do furnaces last?
Many furnaces last about 15 to 20 years with regular maintenance.
Do you repair heat pumps too?
Yes. See our heat pump services page for installation, repair, and maintenance.
Contact Reliable Air & Heat
Reliable Air & Heat provides trusted furnace repair in Conroe, TX and the surrounding area. Call 936-890-8991 or request service online. Our shop is at 2229 N Teas Nursery Rd, Conroe, TX 77304.
