Furnace repair costs depend on the type of furnace, the nature of the problem, and whether parts need replacement. In the US, most repairs cost $150–$500, while a full furnace replacement runs $2,500–$7,000+. In Poland, repairs range from PLN 500–5,000. In the Netherlands, boiler repairs cost €200–€2,000. In Spain, caldera repairs run €80–€400 most cases, full replacement €1,500–€3,500 (mixta gas) or €5,500–€10,000+ (aerotermia). Regular maintenance can prevent most common failures and extend your furnace's lifespan by years.
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Average costs by job type[1,2]
| Job type | Typical cost (USD) |
|---|---|
| Diagnostic visit/service call | $75–$150 |
| Thermostat replacement | $100–$350 |
| Ignitor replacement | $150–$300 |
| Blower motor replacement | $300–$600 |
| Heat exchanger repair | $500–$1,500 |
| Circuit board replacement | $200–$600 |
| Gas valve replacement | $200–$500 |
| Full furnace replacement (gas) | $2,500–$7,000 |
| Full furnace replacement (high-efficiency) | $4,000–$10,000+ |
What affects the cost?
- Type of repair — simple fixes (ignitor, thermostat) are cheap; major components (heat exchanger, blower) are expensive
- Furnace type — gas, oil, and electric furnaces have different parts and repair complexities
- Age of the unit — older furnaces may need hard-to-find parts or have multiple failing components
- Emergency timing — heating emergencies in winter carry premium rates of 1.5x–2x
- Warranty status — many parts are covered under manufacturer warranty for 5–10 years
- Efficiency upgrade — switching to a high-efficiency (95%+ AFUE) model costs more but saves on fuel
- Ductwork condition — if ducts are leaking or undersized, additional work may be needed
Costs by country
Costs in the United States
In the US, furnace repairs average $150–$500 for most common issues. A diagnostic visit typically costs $75–$150, which is often credited toward the repair. Replacing a furnace ignitor costs $150–$300, a blower motor runs $300–$600, and a heat exchanger — the most expensive repair — costs $500–$1,500. If the heat exchanger fails on a unit over 15 years old, replacement is usually more cost-effective.
A full gas furnace replacement costs $2,500–$7,000 for a standard efficiency model and $4,000–$10,000+ for a high-efficiency unit. High-efficiency gas furnaces and heat pumps may qualify for federal tax credits of up to $2,000. Annual furnace maintenance (typically $80–$150) includes inspection, cleaning, and filter replacement — this prevents most breakdowns and is well worth the investment.
How to save
- Schedule annual maintenance — a $100–$150 tune-up prevents most costly breakdowns
- Change filters regularly — dirty filters cause 80% of furnace failures; replace every 1–3 months
- Get a diagnostic before deciding — some "failures" are simple fixes like a tripped safety switch
- Compare repair vs replacement — if repair costs exceed 50% of a new unit, replacement is usually smarter
- Claim tax credits and subsidies — high-efficiency replacements qualify for significant incentives
- Get multiple quotes for replacement — prices vary 30–50% between HVAC companies
- Consider a service contract — annual maintenance plans often include priority service and repair discounts
Frequently asked questions
How much does furnace repair cost?
The average furnace repair runs $150–$650 in the US, with the national average around $310. Service calls are $75–$150. Major repairs like blower motor replacement ($400–$1,500), heat exchanger ($1,500–$3,000), or control board ($300–$700) push costs higher. Annual tune-ups ($80–$200) prevent most costly repairs.
When should I repair vs replace my furnace?
Replace if: it's 15+ years old, repairs exceed 50% of replacement cost, you're paying for repairs every year, or it's not heating evenly. Replace cost: $3,000–$7,500 for gas furnaces, $4,000–$10,000 for heat pumps. Heat pumps qualify for federal tax credits up to $2,000.
Why does my furnace keep needing repairs?
Common culprits: dirty filters (change every 1–3 months), skipped annual maintenance, oversized or undersized for the home, or near end-of-life. Furnaces over 12 years old breaking down repeatedly are signaling it's time to replace, not keep repairing.
Is emergency furnace repair worth the cost?
In freezing weather, yes — pipes can freeze and burst within 6–8 hours of no heat. Emergency rates run 1.5×–2× standard ($150–$300/hr). If temps are above freezing and you have alternative heat (space heater), wait for business hours and save 30–50%.
Learn about the trade
How to become an HVAC technician: EPA certification, training programs, salary expectations, and career paths in the US, Poland, and the Netherlands.
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