Heating
Furnace Repair in Philadelphia and Delaware County
When the furnace quits on a cold night, you want it fixed, not guessed at. We repair gas furnaces and get the heat back on.
- HIC #193075
- ★ 5.0 on Google · 15 reviews
- Same-day service. Terms apply.
A gas furnace is a chain of steps: the thermostat calls, the inducer starts, the igniter lights, the flame proves, the blower comes on. If any one link fails, the furnace stops or short-cycles. Diagnosing that chain methodically is what separates a repair that lasts from a repeat visit.
We repair furnaces common in Delaware County and Philadelphia homes, from older standard-efficiency units to modern high-efficiency models. We will tell you what failed, what it takes to fix it and whether repair is the sensible choice.
Signs you need furnace repair
- No heat or the furnace will not start
- Furnace turns on and off repeatedly
- Banging, squealing or rumbling noises
- Yellow or flickering burner flame instead of blue
- Weak airflow from vents or rooms that stay cold
- Higher heating bills with no change in use
What we check
- Test thermostat call for heat and wiring
- Inspect igniter or pilot, flame sensor and burners
- Check inducer motor, pressure switches and venting
- Examine blower motor, capacitor and filter
- Look at the heat exchanger and safety controls
Equipment we service
- Gas furnaces
- Standard-efficiency furnaces
- High-efficiency condensing furnaces
- Igniters and flame sensors
- Blower motors
- Thermostats
Common questions
Why is my furnace blowing cold air?
Common causes are a failed igniter or flame sensor that shuts the burners off, a tripped limit switch or a thermostat set to fan only. A technician can pinpoint it quickly.
Should I repair or replace an old furnace?
Age, repair cost and efficiency all matter. Our calculator on the home page gives a rule-of-thumb answer, and a technician will give an honest opinion on site.
Is a yellow flame in my furnace dangerous?
A steady blue flame is normal. A yellow or flickering flame can mean incomplete combustion. Turn the furnace off and call for service, and leave the house if you suspect carbon monoxide.