AC Repair Cost: Prices by Problem & System Type
Average $375 · Prices by repair type, system, and state · Repair vs. replace decision rules
$375National average repair
$75–$200Service call fee
$150–$400Capacitor (most common)
$1K–$3KCompressor (worst case)
⚡ Quick Answer
AC repair costs an average of $375, ranging from $75 for a service call with minor adjustments to $3,000 for compressor replacement. The most common repair — capacitor failure — runs $150–$400 and takes under an hour. If your quote exceeds $1,500 and your unit is over 10 years old, run the $5,000 rule before approving repairs (see below).
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AC Repair Cost by Severity
🟢 Minor — Fix Today
$75–$400
Clogged drain line, dirty filter, thermostat issue, tripped breaker, capacitor failure. Quick diagnosis, parts under $100, done in 1–2 hours.
🟡 Moderate — Budget $300–$1,000
$300–$1,000
Refrigerant leak, fan motor replacement, frozen coil, contactor failure, minor duct leak. Requires EPA-certified tech for refrigerant work.
🔴 Major — Consider Replacing
$1,000–$3,000+
Compressor failure, evaporator or condenser coil replacement, extensive ductwork. Run the $5,000 rule before approving.
AC Repair Cost by Problem (Most Common First)
| Problem | Repair Cost | DIY? | Notes |
|---|---|---|---|
| Capacitor replacement | $150–$400 | No | Most common failure. Unit won't start or hums. 30–60 min job. Part costs $10–$50; rest is labor. |
| Clogged drain line | $75–$250 | Yes | Causes water leaks indoors. DIY: shop vac on drain line. Pro flush: $75–$150. |
| Thermostat replacement | $100–$500 | Yes | Basic: $100–$200. Smart/programmable: $200–$500 installed. Easy DIY for non-smart units. |
| Refrigerant recharge (no leak) | $200–$500 | No | EPA certification required. R-410A ~$150–$300/lb. Older R-22 systems: $400–$1,500+ (phased out). |
| Refrigerant leak repair | $225–$1,500 | No | |
| Contactor replacement | $150–$350 | No | Controls power to compressor/fan. Unit won't turn on or short-cycles. 30 min labor. |
| Fan motor (condenser) | $300–$700 | No | Outdoor unit fan stops. Motor + labor. Unit runs but no airflow across condenser. |
| Fan motor (blower/air handler) | $400–$900 | No | Weak airflow indoors. More complex than condenser fan — often in tight space. |
| Frozen evaporator coil | $200–$600 | Partial | Turn off AC, let thaw 24 hrs, replace filter first. If it freezes again: refrigerant or airflow issue. |
| Evaporator coil replacement | $600–$2,000 | No | Corroded or leaking coil. Consider replacement if unit is 10+ years old. |
| Condenser coil replacement | $700–$2,500 | No | Outdoor coil damage. Run $5,000 rule — at this cost, system age matters enormously. |
| Compressor replacement | $1,000–$3,000 | No | |
| Ductwork repair (minor) | $200–$700 | Partial | Sealing leaks, adding insulation. DIY with mastic sealant for accessible ducts. |
| Ductwork replacement | $1,200–$4,500 | No | Full system — $25–$55/linear foot installed. |
Service Call & Labor Fees
- Standard service call: $75–$200 flat fee to show up and diagnose. Most companies apply this to the repair if work is done same visit.
- Labor rate: $75–$175/hour during business hours. Second technician (for larger jobs) adds another $50–$100/hour.
- Emergency/after-hours: 20–50% surcharge. Weekend or holiday calls typically $160–$250/hour — versus $75–$150 during regular hours.
- Peak season premium: June–August demand spikes mean longer wait times and some contractors charge higher rates. Schedule non-urgent repairs in spring or fall.
Repair vs. Replace: The $5,000 Rule
🧮 The $5,000 Rule (Industry Standard)
Repair Cost × System Age (years) = Decision Number
If > $5,000 → Replace. If < $5,000 → Repair.
If > $5,000 → Replace. If < $5,000 → Repair.
Example 1: 4-year-old system, $600 repair → 4 × $600 = $2,400 → Repair ✅
Example 2: 12-year-old system, $800 repair → 12 × $800 = $9,600 → Replace ❌
Example 3: 8-year-old system, $500 compressor → 8 × $500 = $4,000 → Repair (borderline — get second opinion)
Also apply the 50% rule: if repair costs more than 50% of a new unit ($2,500–$7,500), replacement usually wins.
Example 2: 12-year-old system, $800 repair → 12 × $800 = $9,600 → Replace ❌
Example 3: 8-year-old system, $500 compressor → 8 × $500 = $4,000 → Repair (borderline — get second opinion)
Also apply the 50% rule: if repair costs more than 50% of a new unit ($2,500–$7,500), replacement usually wins.
⚠️ The R-22 trap. Systems built before 2010 likely use R-22 refrigerant (Freon), which was phased out by the EPA and is no longer manufactured. R-22 recharges now cost $400–$1,500+ per service vs $200–$500 for modern R-410A systems. If your system uses R-22 and needs a refrigerant recharge, replacement is almost always the smarter investment.
AC Repair Cost by System Type
| System Type | Typical Repair Range | Notes |
|---|---|---|
| Central AC (most homes) | $150–$1,500 | Most complex, most expensive. Ductwork repairs add $200–$700. |
| Ductless mini-split | $200–$1,000 | No ductwork, but electronics are more complex. Fewer qualified technicians. |
| Window unit | $75–$400 | |
| Portable AC | $75–$350 | Similar to window. Usually cheaper to replace than repair if major component fails. |
| Swamp cooler / evaporative | $125–$500 | Simpler mechanics. Common repairs: pump, pads, motor. Works only in dry climates. |
| Heat pump (AC mode) | $200–$1,500 | Dual heating/cooling system. More complex — reversing valve repairs add cost. |
AC Repair Cost by State
Labor rates and seasonal demand create meaningful price differences. These reflect a standard central AC service call + moderate repair (capacitor or refrigerant recharge).
| State | Typical Moderate Repair | Labor / hr | Notes |
|---|---|---|---|
| Texas, Oklahoma | $200–$500 | $75–$110 | High demand — book early in summer or expect delays |
| Florida | $220–$550 | $80–$120 | Year-round demand; some of the highest AC usage in US |
| Arizona, Nevada | $200–$520 | $75–$115 | |
| Georgia, North Carolina | $190–$480 | $70–$105 | Good competition; mid-range pricing |
| Ohio, Michigan, Indiana | $175–$450 | $65–$100 | Lower demand; more reasonable off-peak pricing |
| Illinois, Pennsylvania | $200–$500 | $75–$115 | Urban markets (Chicago, Philly) premium vs rural |
| New York, New Jersey | $280–$700 | $100–$160 | |
| California | $280–$650 | $95–$150 | High labor; Southern CA has extreme summer demand spikes |
Find Licensed HVAC Technicians Near You
For AC repair, licensing matters — refrigerant handling requires EPA 608 certification. Verify any technician is licensed before letting them work on your system.
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Angi — Emergency & Same-Day HVAC
All 50 states · Emergency service available
Search "AC repair" with your ZIP. Filter by availability for same-day or next-day service. Read reviews specifically for diagnosis accuracy — a technician who correctly identifies the problem the first time saves you the service call fee on a second visit.
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Thumbtack — Local HVAC Technicians
All 50 states · Direct pricing from locals
Post your AC problem and receive quotes from multiple local HVAC techs. Good for non-emergency repairs where you want to compare prices before committing. Some techs post flat-rate pricing for common repairs like capacitor replacement.
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HomeGuide — HVAC Repair Estimates
All 50 states · Compare itemized quotes
Describe your AC problem and receive competing quotes. Useful for verifying that a diagnosis fee is included in the repair quote — not charged as a separate $200 item if you proceed with the repair.
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Before You Call a Tech: Free Checks That Save $75–$200
- Check the thermostat. Sounds obvious — but a dead battery, wrong mode (heat vs cool), or incorrect setpoint causes thousands of "emergency" service calls annually. Replace batteries and confirm settings first.
- Check the breaker. AC units often have two breakers — one for the air handler (inside) and one for the condenser (outside). Check both. A tripped breaker is a $0 fix.
- Check/replace the filter. A completely blocked filter causes frozen coils, no airflow, and eventual compressor damage. Replace if it's been more than 30–90 days. A $5 filter swap can restore cooling immediately.
- Clear the condensate drain line. A clogged PVC drain pipe causes the float switch to shut off the AC. Find the drain line (usually near the air handler), pour diluted bleach through it, or use a shop vac to suction the clog out. Fixes 15% of "AC won't run" calls at zero cost.
- Clear debris around the outdoor condenser. Grass, leaves, or overgrown shrubs blocking the condenser fins cause the unit to overheat and shut off. Clear 18–24 inches around the unit and hose down the fins gently.
💡 AC maintenance contract: worth it? Annual HVAC maintenance contracts cost $150–$500/year and typically include a spring AC tune-up, fall heating check, priority scheduling, and parts discounts. If your system is under 10 years old and well-maintained, the math rarely works out vs. paying per visit. Over 10 years old with a history of repairs: a maintenance contract pays for itself in a single avoided emergency call.
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Thinking about full replacement instead of repair?
If the $5,000 rule points to replacement, see our Sprinkler System Cost → or use the Home Replacement Cost Estimator → to update your insurance coverage after any major system upgrade.
Frequently Asked Questions
How much does AC repair cost?
The national average AC repair is $375, ranging from $75 for a service call with minor work to $3,000 for compressor replacement. The most common repair — capacitor failure — costs $150–$400 and takes under an hour. A refrigerant recharge runs $200–$500; leak repair $225–$1,500 depending on complexity.
Is it worth repairing an old AC unit?
Use the $5,000 rule: multiply the repair cost by the system's age in years. If that number exceeds $5,000, replacement is usually the smarter investment. Also apply the 50% rule — if repair costs more than half of a new system ($2,500–$7,500), replace. A 12-year-old system needing a $700 repair (12 × $700 = $8,400) should probably be replaced, not repaired.
Why is my AC running but not cooling?
The four most common causes: low or leaking refrigerant ($200–$1,500 to fix), frozen evaporator coil (often caused by dirty filter — check that first), failed capacitor ($150–$400), or dirty condenser coils (sometimes a free fix — hose down the outdoor unit). Check and replace your air filter before calling a tech — it's the #1 cause of poor cooling and costs $5 to solve.
How much does emergency AC repair cost?
Emergency and after-hours service typically costs 20–50% more than standard rates. Expect to pay $160–$250/hour for labor vs. $75–$150 during normal business hours, plus a service call fee of $100–$200. Weekend and holiday calls cost the most. If it's not a true emergency, scheduling a standard appointment saves $100–$300 on a typical repair.
Can I fix my AC myself?
Some minor fixes are safe DIY: replacing the air filter, clearing the condensate drain line, checking/resetting the breaker, trimming vegetation around the outdoor unit, and replacing the thermostat. Never attempt DIY refrigerant work — it requires EPA 608 certification and specialized equipment. Electrical work inside the unit (capacitors, contactors) can be fatal if you're not experienced with high-voltage systems. When in doubt, call a licensed tech.