How much does furnace repair cost?
Furnace repair costs $150-$500 for common issues. Major repairs like heat exchanger replacement: $1,000-$3,000.
Cost Breakdown
| Service | Low | High | Notes |
|---|---|---|---|
| Ignitor replacement | 100 | 250 | Common wear item |
| Flame sensor | 75 | 200 | Cleaning may fix it |
| Blower motor | 300 | 600 | May include capacitor |
| Heat exchanger | 1000 | 3000 | May warrant replacement |
Furnace Repair Cost
Understanding common repair costs helps you decide between repair and replacement.
Common Repairs
Ignitor: $100-$250. Flame sensor: $75-$200. Blower motor: $300-$600. Draft inducer: $200-$600. Thermocouple: $100-$250.
Major Repairs
Heat exchanger: $1,000-$3,000 (may warrant replacement). Control board: $400-$700. Gas valve: $300-$800.
Emergency Service
Standard diagnostics: $75-$150. Emergency calls add $150-$300 for the call alone.
Repair vs. Replace
Repair if under 10 years and under $500. Replace if over 15 years, exceeds $500, or heat exchanger is cracked (safety hazard).
Related Questions
Why is my furnace not heating?
Common causes: tripped breaker, dirty filter, failed ignitor, thermostat malfunction, or pilot light issue.
How often do furnaces need repair?
Well-maintained furnaces rarely need repair in the first 10 years. After that, expect occasional issues.
Is a cracked heat exchanger dangerous?
Yes, it can leak carbon monoxide. Replace immediately and install CO detectors.