Most air conditioner repairs in 2026 cost between $150 and $650, with a national average around $350, plus a diagnostic fee of $75–$200 that most companies credit toward the repair. Small electrical parts (capacitor, contactor) sit at the bottom of the range, motors and drain problems in the middle, and refrigerant leaks, evaporator coils and compressors are a different tier at $1,000–$4,500, which is where the repair-or-replace question begins.
Typical cost by repair
| Repair | Typical installed cost (2026) | Notes |
|---|---|---|
| Diagnostic / service call | $75 – $200 | Usually credited toward the repair; after-hours calls add 25–50% |
| Run capacitor | $130 – $400 | The most common failure; dual capacitors at the top of the range |
| Contactor | $150 – $350 | Often replaced with the capacitor |
| Condensate drain clog / pump | $100 – $400 | Cause of most “AC leaking water” calls |
| Thermostat | $150 – $500 | More for smart thermostats with new wiring |
| Condenser fan motor | $350 – $800 | |
| Blower motor | $450 – $1,500 | Variable-speed (ECM) motors at the top |
| Refrigerant leak repair + recharge (R-410A) | $600 – $1,800 | R-410A now $40–$90+/lb at service pricing; a 3-ton system holds 6–9 lb |
| Evaporator coil | $1,200 – $2,800 | Frequently a replace-the-system decision on older units |
| Compressor (out of warranty) | $1,100 – $4,650 | 3-ton systems typically $1,500–$3,400; under parts warranty $600–$2,650 for labor + refrigerant |
Ranges reflect 2026 national contractor pricing surveys; North Carolina labor rates track close to the national average, so these apply reasonably well in the Triangle, Charlotte and Triad, with coastal and after-hours premiums.
Why refrigerant changed the math
New residential systems since 2025 use R-454B or R-32. Existing R-410A systems remain legal to service, but R-410A supply is tightening under the federal HFC phasedown and its service price has climbed sharply, so any repair that involves opening the refrigerant circuit on an older system costs more than it did a few years ago. That is why a leak repair or coil replacement on a 10–15-year-old R-410A unit is so often quoted alongside a replacement. Refrigerant recharge cost covers the per-pound picture.
Before you accept a big diagnosis
Ask what specifically failed and how it was tested. A “dead compressor” should come with a capacitor test, an amp-draw reading against the data plate, and a fan motor check; those take ten minutes and rule out the cheap failures that mimic a compressor. “Low on refrigerant” should come with where the leak is. If a repair call for a system under 12 years old turns into a replacement pitch on the spot, a second opinion usually pays for itself.
When repair stops making sense
Multiply the repair quote by the age of the system in years; if the result is over about 5,000, replacement usually wins. Compressor and coil work on a system past 10–12 years, any repair on an R-22 system, and a second major repair in two seasons all point the same way. The repair-or-replace guide walks through the decision, and if you’re replacing, the AC replacement cost page has the current ranges.
Keeping the bill down
A $75–$200 spring tune-up catches capacitors, contactors, dirty coils and drain lines before they take the system down in July; a clean filter prevents the frozen-coil calls that lead to unnecessary refrigerant charges; and calling in shoulder season avoids the after-hours premium. If your AC is not cooling right now, start here before you book, then choose a contractor whose license we’ve already checked in the registry.