AC Repair Cost
Reviewed 2026-07-30
Typical range
$150 – $2,500
National average
$450
AC Repair cost breakdown
| Line item | DIY cost | Professional cost |
|---|---|---|
| Capacitor or contactor replacement | $15 – $40 part, risk of electric shock | $150 – $350 |
| Refrigerant leak repair and recharge (R-410A) | Not legal without EPA 608 certification | $400 – $1,200 |
| Condenser fan motor replacement | $80 – $200 part, moderate DIY risk | $300 – $650 |
| Evaporator coil replacement | Not recommended — refrigerant handling required | $1,000 – $2,500 |
| Compressor replacement | Not recommended | $1,500 – $2,800 |
| Clogged condensate drain clearing | $0 – $20 wet/dry vac and vinegar flush | $100 – $250 |
What pushes ac repair cost up
- Refrigerant leaks requiring line repair plus a full recharge
- Compressor failure, the most expensive single AC component
- Systems using R-22 refrigerant, which is being phased out and costs far more per pound
- After-hours or weekend emergency calls during heat waves
- Difficult attic or rooftop unit access
- Older systems (12+ years) where matched replacement parts are harder to source
- Extensive ductwork or airflow diagnosis needed alongside the equipment repair
What brings ac repair cost down
- Simple part swaps like capacitors or contactors caught early
- Routine maintenance plans that catch issues before failure
- Systems still under manufacturer parts warranty
- Scheduling non-emergency repairs in spring or fall shoulder season
- Clean, accessible equipment location requiring no extra labor
AC Repair diagnostic and emergency fees
$75 – $150, often applied toward the repair cost
Same-day summer emergency calls typically add $100 – $250 in overtime fees, and refrigerant costs spike during peak season due to demand.
Questions to ask before you approve ac repair work
- What exactly failed, and is it covered under any existing warranty?
- Is my refrigerant type R-22 or R-410A, and does that affect repair cost?
- Is it more cost-effective to repair or replace given the system's age?
- Do you charge a flat rate or time-and-materials for this repair?
- Will you show me the failed part before installing the new one?
- Does the diagnostic fee apply toward the repair if I hire you?
AC Repair cost questions
Is it worth repairing an old AC unit?
As a rule of thumb, if the repair cost exceeds 50% of a new unit's cost and the system is over 10–12 years old, replacement is usually the better long-term value.
Why is refrigerant recharge so expensive?
R-410A must be handled by an EPA 608-certified technician, and per-pound cost has risen as R-22 systems are phased out, pushing overall refrigerant work higher than a simple part swap.
How fast can I get emergency AC repair in summer?
Most companies offer same-day service during heat waves, but expect longer wait times and higher emergency surcharges during peak demand.
Problems ac repair solves
- Why Is My House So Hot?
- Why Is My House Getting an AC That Runs Constantly?
- Why Is My House Getting Weak Airflow From the Vents?
- Why Is My House Getting Hot Upstairs?
Sources for these ac repair costs
- ASHRAE Handbook — HVAC Applications
- U.S. EPA Section 608 Refrigerant Regulations
- ENERGY STAR Central Air Conditioning guidance