Quick answer
The average HVAC repair costs $150–$650 in 2026, with a national median around $350. The range by fix type is enormous: a $150 capacitor takes 30 minutes, while a compressor replacement can run $2,500+ and take a full day. Add a service-call or diagnostic fee of $75–$200 on top of the repair itself, which is usually credited toward the total if you approve the work.
Emergency, after-hours, and weekend calls run 1.5–2× the standard rate. Expect $150–$300 in trip fees alone for a Sunday visit.
Repair cost by fix type
| Repair | Typical cost (parts + labor) | Notes |
|---|---|---|
| Thermostat replacement | $150–$400 | Smart thermostats at the high end |
| Capacitor replacement | $120–$400 | Very common summer no-cool call |
| Contactor replacement | $150–$400 | Often bundled with a capacitor job |
| Refrigerant recharge (R-410A) | $200–$600 | Recharging without finding the leak is a temporary fix |
| Refrigerant leak repair + recharge | $400–$1,500 | Depends heavily on leak location |
| Fan motor replacement | $400–$900 | Outdoor condenser fan or indoor blower |
| Blower motor replacement | $450–$1,200 | Variable-speed blowers at the high end |
| Evaporator coil replacement | $650–$2,000 | Labor-heavy — access matters |
| Condenser coil replacement | $1,000–$2,500 | Also a repair-vs-replace decision point |
| Compressor replacement | $1,500–$3,000+ | On units 10+ years old, replace the whole system instead |
| Furnace ignitor / flame sensor | $150–$400 | Most common winter no-heat call |
| Furnace heat exchanger | $1,500–$3,500 | Cracked heat exchanger = replace the furnace |
| Ductwork repair (per section) | $200–$1,000 | Depends on access and material |
Service-call and diagnostic fees
Almost every HVAC company charges a service-call fee of $75–$200 just to send a technician to your home. Some call it a "trip charge," some a "diagnostic fee" — the intent is the same: cover the truck, the technician's time, and the risk that you say no to the repair. Common structures:
- Straight service call ($75–$150): pays for arrival + diagnosis; separate from any repair cost.
- Diagnostic fee credited to repair ($100–$200): higher upfront, but the fee applies against the repair total if you approve the work.
- Free with repair ($0 + higher repair markup): the "free estimate" model — fee is baked into the repair price.
- Membership plans ($15–$30/mo): waived service calls, priority scheduling, and 10–15% off repairs. Worth it if your system is old.
After-hours, weekend, and holiday visits add 50–100% to the service-call fee — plan on $150–$300 just for the trip.
Repair vs. replace: the decision line
The industry rule of thumb is the $5,000 rule: multiply the age of your system by the repair estimate. If the number is over $5,000, replace instead of repairing. A $600 repair on a 9-year-old system = $5,400 → lean toward replacement.
Other replacement triggers, independent of the $5,000 rule:
- Compressor failure on any system 10+ years old. The compressor is 40–60% of the cost of a new outdoor unit; you're a coil failure away from paying for a full system in repairs.
- Cracked heat exchanger on a furnace. Safety issue (carbon monoxide) — always replace.
- R-22 (Freon) systems. R-22 was phased out in 2020 and is now $100+/lb where available. Any significant R-22 leak makes replacement cheaper than the recharge over 2–3 seasons.
- Utility bills climbing. A system running at SEER 8–10 in a market where SEER 15–18 is now standard can pay back a new unit in energy savings in 5–8 years.
How we know: the BLS cross-check
According to U.S. Bureau of Labor Statistics OEWS 2025 data, the national median wage for an HVAC technician is $29.33/hr. A shop bills a customer at 2.2–3.0× the wage to cover payroll taxes, truck, tools, refrigerant certification, insurance, and profit — giving a fully-loaded billable of $65–$88/hr. Most residential repairs take 1–3 hours of tech time, so labor on a $350 median repair is roughly $100–$200, with the remainder covering parts, the service call, and shop overhead — which matches published industry ranges from Angi, HomeGuide, and Modernize.
How to keep the repair bill down
- Fix small problems fast. A dying capacitor stresses the compressor; a clogged drain line grows mold in the coil. Cheap fixes done on time prevent expensive fixes later.
- Change the filter monthly in cooling season, quarterly otherwise. A dirty filter is the single biggest cause of no-cool and no-heat calls.
- Get a spring tune-up ($100–$200). A tech will catch a weak capacitor or low refrigerant before it's a 100°F emergency.
- Get 2 quotes on any repair over $600. A $75 second-opinion service call has caught many $2,500 "you need a new compressor" calls that turned out to be a $250 capacitor.
- Ask about the flat-rate book. Most HVAC companies price common repairs from a flat-rate book so techs and customers see the same price — ask what your repair prices to before agreeing.
FAQ
What is the average cost of an HVAC repair?
In 2026, the U.S. average HVAC repair is $150–$650, with a median around $350. This includes parts, labor, and the service-call fee. Simple repairs (capacitor, thermostat, ignitor) sit at the low end; motor, coil, and compressor jobs push into the $1,000–$3,000 range.
How much does it cost to fix an AC that won't turn on?
The most common causes are a bad capacitor ($120–$400), a bad contactor ($150–$400), a tripped breaker (free — reset it before you call), a dead thermostat ($150–$400), or low refrigerant ($200–$600 for a recharge, more if there's a leak). Diagnosis is $75–$200 and usually applied against the repair.
Why do HVAC companies charge so much just to show up?
The service-call or diagnostic fee ($75–$200) covers the truck, the technician's time to and from your home, and the risk that you don't approve the repair. HVAC techs also carry EPA 608 refrigerant certification and specialized diagnostic tools ($1,000+ per set) that generalist handymen don't have.
Is a home warranty worth it for HVAC?
Sometimes. A home warranty ($400–$700/yr) covers most HVAC repairs above the service-call fee ($75–$125 per claim). If your system is 8+ years old, it usually pays back within a year or two. If your system is new (under warranty already), it's mostly redundant.
How long should an HVAC system last?
Central AC: 12–18 years typical, 20+ with maintenance. Furnace: 15–25 years. Heat pump: 12–18 years. Once a system passes 15 years old, expect one repair per year and plan for replacement.
What's the cheapest time of year to get HVAC repairs?
Shoulder seasons — spring and fall — have the lowest demand and the shortest wait times. Some companies discount tune-ups by 20–30% in March–April and September–October. Emergency repairs in the middle of a heat wave or cold snap are always the most expensive.
Related
See what HVAC techs earn on our HVAC rates pages (worker salary data, all 51 states). If you're a contractor, price your own service calls with the free profit margin calculator and the estimate generator.
Updated August 2026. Sources: BLS OEWS 2025 (499021 HVAC Mechanics), Angi, HomeGuide, Modernize.