HVAC repair costs: 2026 price guide
Most HVAC repairs cost $150 to $650, but major component failures — compressors, heat exchangers — can run $1,200–$3,500. The right number depends on what’s broken, your system’s age, and the season you’re calling in.
HVAC covers three interconnected systems — heating, cooling, and airflow — and repair cost swings widely depending on which one failed. A blown capacitor and a cracked heat exchanger are both “HVAC repairs,” but one is a $200 fix and the other can be a $3,000 decision point.
This guide covers typical pricing across the most common HVAC repairs. For a deeper breakdown of a specific system, see our dedicated guides on furnace repair, AC replacement, and refrigerant recharge costs.
By repair type
HVAC repair cost by type
Nationwide averages across heating, cooling, and airflow repairs.
| Repair | Typical range | Average |
|---|---|---|
| Thermostat replacement | $120 – $350 | $200 |
| Capacitor replacement | $120 – $400 | $200 |
| Refrigerant recharge (AC) | $200 – $600 | $350 |
| Blower motor repair/replace | $300 – $700 | $450 |
| Igniter or flame sensor (furnace) | $150 – $400 | $225 |
| Heat exchanger replacement | $1,000 – $3,500 | $1,800 |
| Compressor replacement | $1,200 – $2,800 | $1,900 |
| Ductwork repair (per section) | $300 – $1,200 | $600 |
| Diagnostic / service call | $75 – $200 | $125 |
Price factors
What drives the price up or down
System age & brand
Parts for systems older than 10–12 years cost more to source. Premium brands (Trane, Lennox, Carrier) carry a 10–20% parts premium over budget brands.
Time of year
Emergency repairs during a heatwave or cold snap commonly cost 15–30% more than the same repair scheduled in spring or fall.
Accessibility
Attic-mounted air handlers, rooftop units, and tight crawlspaces add labor time — expect $50–$150 extra for difficult access.
Diagnostic complexity
A blown capacitor is a fast, cheap fix. A system that’s “just not right” with no obvious cause can take 1–2 hours of diagnostic time before the part is even identified.
Decision framework
Repair vs. replace: the 50% rule
If the repair cost exceeds roughly 50% of the cost of a new system, and the unit is more than 10 years old, replacement is usually the better long-term value. A $2,200 compressor repair on a 14-year-old unit that would cost $5,500 to replace is a common case where replacement wins — the old unit is likely to fail again within a year or two.
Repair is usually fine if:
- • System is under 10 years old.
- • Repair cost is under $500.
- • This is the first repair call this year.
Replacement is worth considering if:
- • System is 10+ years old.
- • Repair cost exceeds ~50% of a new unit.
- • You’ve had 2+ repair calls this year.
Go deeper
Explore specific HVAC repairs
Furnace Repair Cost 2026
Component-by-component pricing and the heat exchanger safety issue.
AC Replacement Cost
Pricing by tonnage, brand tier, and available tax credits.
AC Refrigerant Recharge Cost
What a recharge costs and why a leak needs fixing first.
HVAC Diagnostic & Service Call Fees
What a fair service call fee looks like before repairs even start.
AC Repair Cost in Phoenix, AZ
Local pricing data for one of the country’s highest-demand AC markets.
Thermostat Replacement Cost
Pricing by thermostat type, and the free fixes worth trying first.
Heat Pump Repair Cost
Why heat pumps fail more often, and the parts unique to them.
Common questions
Frequently asked questions
If the repair is under $500 and the system is less than 10 years old, repair is almost always worth it. Past that, run the 50% rule above.
Labor rates, markup on parts, and diagnostic approach differ by company. Padding on parts markup is usually where most of the variance comes from — ask for the failed part in writing.
Only if the failure was caused by a covered peril (fire, storm damage, etc.). Mechanical failure from normal wear and tear is not covered.
Get at least two quotes for anything over $500, confirm the diagnostic fee is included, check for existing warranty coverage, and schedule non-emergency repairs in spring or fall.
Need a repair estimate?
Connect with a licensed HVAC technician to diagnose the issue and get a realistic price before you commit.