Furnace Repair Cost: What You Should Actually Pay in 2026

Written quote before work starts
Licensed, insured, background checked technicians
Genuine OEM parts (not generic knockoffs)
1 year warranty on parts and labor
CO safety test if applicable
Photo documentation of the failed part and the fix

The average furnace repair across our service areas runs $150 to $900 in 2026, with the national average sitting around $350. Simple fixes like flame sensor cleaning or thermostat replacement come in under $225. Major repairs like heat exchanger or gas valve replacement can reach $1,200 to $2,400.

Furnace repair demand is heaviest in our California Bay Area cities (San Jose, Richmond, Gilroy) and both Utah markets, where winter nights drop low enough to stress older systems.

Furnace Repair Cost By Repair Type

Why Furnace Repair Demand is Higher in California and Utah

Furnace Repair Cost By City

When Furnace Repair Stops Making Sense

Florida markets have low furnace demand. Most Jacksonville and Orlando homes use electric strip heat or heat pumps rather than gas furnaces, so furnace repair is a smaller piece of our Florida work.

California and Utah are flipped. Our San Jose furnace repair team handles calls from late October through March. Our Bakersfield furnace maintenance crew sees the most tune up requests in September and October.

Utah markets (Washington and Magna) see the heaviest furnace repair demand from November through February, especially during cold snaps below 20°F.

The Most Common Furnace Repair Calls We See

1. Flame sensor dirty ($120 to $220): Number one cause of "furnace not heating" calls. The sensor gets coated with carbon and stops detecting the flame, shutting down the furnace as a safety measure. Cleaning usually solves it in 20 minutes.

2. Ignitor failure ($220 to $450): Hot surface ignitors crack and fail. Common on systems 5+ years old, replacement is straightforward.

3. Short cycling ($180 to $500): Usually traces back to a dirty filter, closed registers, or a failing control board. Diagnosis determines repair path.

4. Blower not running ($180 to $1,100): Could be a blown capacitor (cheaper fix) or a failed blower motor (bigger fix).

5. Strange smells on startup ($0 to $300): Dust burning off is normal for first run of the season. Persistent burning smells usually mean a cracked heat exchanger (dangerous) or electrical short (dangerous). Both need immediate diagnosis.

6. Banging or rattling ($120 to $800): Usually a loose blower wheel, failing bearings, or duct expansion. Diagnosis determines fix.

7. Furnace blowing cold air ($150 to $900): Many possible causes from thermostat misconfiguration to failed gas valve. This is a diagnostic first call.

Carbon Monoxide Safety Note

Consider replacement instead of repair if:

Heat exchanger is cracked or leaking (safety issue, replacement is almost always smarter)

Furnace is over 15 years old
Repair cost is more than 50 percent of replacement cost
Multiple repairs in the last 24 months
System uses R-22 (for heat pumps) or is severely under sized for the home

Run the math: repair cost × age of the system. If that number exceeds 5,000, replacement wins.

What We Include With Every Furnace Repair

External resources: CPSC Carbon Monoxide Safety | ENERGY STAR Furnace Guide

Any time a furnace repair involves the heat exchanger, gas valve, or flue system, our technicians do a carbon monoxide test before leaving. If you do not have a working CO detector in your home, install one before the heating season. The CPSC lists carbon monoxide as responsible for over 400 deaths per year in the U.S., many from furnace related issues.