Furnace repair costs vary widely — from a simple $80 flame sensor cleaning to a $1,200 heat exchanger replacement. Understanding what drives these costs helps you budget accurately, spot overcharging, and make informed decisions about whether to repair or replace. This complete breakdown covers every common furnace repair and what each costs.
Average Furnace Repair Cost: What to Expect
Across the country, the average furnace repair costs between $150 and $1,000, with most homeowners paying around $300–$500 for a typical repair. In Salt Lake City, prices are broadly in line with national averages, though emergency and after-hours calls add a premium.
Furnace Repair Costs by Component
- Diagnostic / service call fee: $75 – $150 (often applied toward the repair total)
- Igniter replacement: $150 – $300 (one of the most common furnace repairs)
- Flame sensor cleaning or replacement: $80 – $250
- Thermostat replacement: $100 – $300
- Blower motor repair: $150 – $450
- Blower motor replacement: $300 – $600
- Circuit board replacement: $300 – $600
- Gas valve replacement: $200 – $500
- Heat exchanger repair: $500 – $1,200
- Full furnace replacement: $2,500 – $5,000 (unit + labor)
What Factors Affect the Final Price?
1. Type of Repair
The specific component and complexity is the biggest price driver. A sensor cleaning takes 30 minutes; a heat exchanger replacement may take half a day and require specialized equipment.
2. Emergency vs. Standard Scheduling
After-hours, weekend, and holiday service calls typically add $50–$150 to the base service fee. If you can wait until regular business hours, you can avoid this premium.
3. Age and Brand of the Furnace
Older furnaces may require parts that are harder to source. Uncommon brands can have markedly higher parts costs. Labor in Salt Lake City typically runs $75–$150 per hour.
Repair Costs vs. Replacement Costs
Use the 5,000 rule to evaluate major repairs: age × repair cost. If the result exceeds $5,000, explore furnace replacement. A new high-efficiency furnace will lower your monthly energy costs significantly, often recouping the replacement cost within 7–10 years through energy savings alone.
How to Avoid Overpaying for Furnace Repair
- Always get a written estimate before authorizing work
- Ask whether the diagnostic fee is applied toward the repair — most reputable companies say yes
- Get two quotes for repairs over $400
- Ask about parts warranty (usually 1 year) and labor warranty
- Check whether your system is still under manufacturer warranty
- Schedule annual furnace maintenance to catch issues before they become expensive
Get an Honest Furnace Repair Quote
Saagah HVAC provides transparent, itemized furnace repair estimates with no hidden fees. We serve Salt Lake City, West Jordan, South Jordan, Midvale, and surrounding communities.
Ready to book? Contact us to schedule a diagnostic today.
