AC Repair Cost: Typical Fixes and What You Will Pay
Most AC repairs cost between $150 and $650, and large repairs can reach $2,500 or more. Averages range from $360 (HomeGuide) to $369 (Bob Vila) and $417 (HomeAdvisor).
What AC repair costs
AC repair cost usually lands between $150 and $650 according to HomeGuide, with a national average of $360 and large repairs reaching $650 to $2,500 or more. HomeAdvisor reports $172 to $664 with an average of $417. Bob Vila gives $100 to $610 and an average of $369. The three sources agree closely on the everyday repair, which is good news for budgeting.
Labor alone runs $75 to $150 per hour for a central system, and emergency or after-hours calls can reach $250 per hour. A service call or diagnostic fee of $75 to $200 is common and is sometimes credited toward the repair.
Cost by type of repair
| Repair | Typical cost, parts and labor |
|---|---|
| Service call or diagnostic | $75 – $200 |
| Tune-up | $70 – $200 |
| Capacitor replacement | $100 – $400 |
| Fuse, breaker or relay | $15 – $300 |
| Thermostat replacement | $140 – $350 |
| Refrigerant recharge | $100 – $600 |
| Circuit board replacement | $150 – $700 |
| Blower motor | $250 – $900 |
| Refrigerant leak repair | $200 – $1,600 |
| Compressor replacement | $600 – $2,800 |
| Evaporator coil replacement | $1,000 – $4,500 |
| Condenser replacement | $300 – $4,200 |
Ranges combine HomeGuide and HomeAdvisor figures, so the top end of each row reflects out-of-warranty, larger or more complex systems.
What pushes the bill up
- Warranty status: under warranty you often pay labor only, for example $100 to $300 on a condenser fan motor versus $200 to $700 without coverage.
- Refrigerant type: a recharge costs $100 to $320 for modern R410A units but $180 to $600 for older R22 systems.
- Season and timing: summer heat waves mean longer waits and higher emergency rates.
- System type: window units cost $50 to $125 to fix, central systems $100 to $500 or more, and ductless mini splits $750 to $900 according to Bob Vila.
Repair or replace?
Replacing an AC costs $2,500 to $7,500 according to Bob Vila. A common rule of thumb is to replace when the repair is more than half the price of a new unit and the system is over 10 to 12 years old. If the furnace is also aging, compare the numbers in our HVAC replacement cost guide before committing to a large repair.
More repair prices to know
| Repair | Typical cost, parts and labor |
|---|---|
| Drain line flush | $75 – $250 |
| Coil cleaning | $100 – $400 |
| Hard start kit | $100 – $270 |
| Condensate pump replacement | $100 – $450 |
| Condenser fan motor | $200 – $700 |
| Contactor replacement | $200 – $450 |
| Drain pan replacement | $200 – $600 |
| Line set replacement | $200 – $650 |
| Expansion valve | $300 – $500 |
| Air handler replacement | $1,500 – $3,400 |
HomeAdvisor quotes higher figures for some of the large jobs: $1,200 to $2,800 for a compressor and $225 to $1,600 for finding and fixing a refrigerant leak. Treat the gap between sources as the realistic range, since system size and local labor rates differ.
Cost by type of air conditioner
HomeAdvisor reports average repair costs of $50 to $125 for a window unit, $100 to $500 for a central system, $125 to $500 for a swamp cooler, $200 to $700 for geothermal, $300 to $500 for a packaged HVAC unit and $750 to $900 for a ductless mini split.
Signs your AC needs a repair
- Warm air: the motor runs but little or no cool air comes from the vents.
- Odd noises or smells: grinding, buzzing or a musty odor.
- Short cycling: the unit turns on and off more often than usual.
- Water or ice: leaks around the unit, or frost on the coils.
A condensate drain clog is a common cause of water leaks, and a flush costs far less than a new drain pan. HomeGuide suggests pouring a quarter cup of distilled white vinegar into the drain line monthly, waiting 30 minutes, then flushing with hot water. Annual tune-ups of about $80 to $100, according to HomeAdvisor, help catch problems early.
When replacing beats repairing
HomeAdvisor suggests replacing the system when the repair cost multiplied by the system's age in years is more than $5,000, when repairs are frequent, when the repair is over 50 percent of a new unit's price, when the unit is over 10 years old, or when it still uses phased-out R-22 refrigerant. Homeowners with an older unit should note that an R22 recharge costs $180 to $600 versus $100 to $320 for newer R410A systems. Warranties matter too: the average manufacturer's warranty is 5 years, so check yours before paying for parts.
DIY or professional?
An experienced do-it-yourselfer can handle small jobs such as changing a filter or clearing a drain line. Anything electrical, and anything involving refrigerant, should go to a licensed technician, since refrigerant is toxic and handling it requires certification. Check state licensing and insurance, warranty history and certifications such as NATE before you hire.
Is your quote reasonable?
A quote under $650 for a single failed part such as a capacitor, contactor or fan motor is normal. A quote above $1,500 should come with a written diagnosis naming the failed part, its price and the labor hours. Ask the technician to show you the failed component. Be cautious of a pushed compressor or coil replacement on a unit under 10 years old, and get a second opinion when the quote is more than roughly a third of a replacement system.
Dot marks each source's reported average. Sources disagree because they sample different projects and scopes.
AC repair estimator and repair-or-replace check
Tick the repairs your technician mentions. Ranges come from HomeGuide's repair price list, parts and labor included.
Should you repair or replace?
The verdict applies HomeAdvisor's rules of thumb: replace when repair cost times age exceeds $5,000, when the repair is over 50 percent of a new unit, when the unit is over 10 years old, or when it uses R-22. Several flags together make replacement the safer choice. A guide, not professional advice.
Last updated: October 2026