Who to call · HVAC Technician
Furnace not heating? Here's Who to Call
A furnace that won't heat can leave your home uncomfortably cold and even dangerous in winter. Common causes include a faulty igniter, a clogged filter, thermostat issues, or a gas supply problem. An HVAC technician can safely troubleshoot and repair your heating system.
What's going on
How to fix furnace not heating
Some "furnace not heating" cases look simple, but getting it wrong almost always costs more than calling a pro: hidden leaks, fire risk, code violations, and insurance headaches. A licensed HVAC technician will diagnose the exact cause, use the right professional tools, and stand behind the repair. Most local pros offer free quotes and can visit the same day or the next.
Who to call
HVAC Technician
How to become an HVAC technician: EPA certification, training programs, salary expectations, and career paths in the US, Poland, and the Netherlands.
Related services
04 / 04
Symptoms to look for
- 01
No warm air from the vents
- 02
Thermostat is set to heat but nothing happens
- 03
The furnace turns on but shuts off quickly
- 04
Yellow or flickering pilot light instead of steady blue
FAQ
Frequently asked questions
Who should I call for: Furnace not heating?
Call a licensed HVAC technician. HVAC Technicians have the specialized training, tools, and insurance to diagnose furnace not heating safely and stand behind the fix. Most offer free quotes and can visit the same day or the next.
Can I fix this myself?
Some minor cases can be handled DIY, but most require a licensed HVAC technician to avoid costly rework and safety risks. A free quote takes under a minute.
How fast can a pro come out?
Most HVAC technicians offer same-day or next-day visits for non-emergency issues. True emergencies (burst pipes, gas smell, no heat in winter) are typically handled within 1–4 hours.
How much does it cost to fix?
Costs vary by severity and your location. Submit a free quote request to get real pricing from local pros in your area.
What are the signs of: Furnace not heating?
No warm air from the vents. Thermostat is set to heat but nothing happens. The furnace turns on but shuts off quickly. Yellow or flickering pilot light instead of steady blue.