Isolated electrical or drain repair
Repair often remains practical
Confirmed failed part, normal compressor/coil operation, warranty, and no repeat-failure pattern.
Diagnosis, sealed-system scope, and replacement boundary
AC Repair Cost Calculator (2026)
Estimate a repair range by suspected fault, AC age, service timing, and refrigerant context—then compare the measurements, parts, warranty, and repair-versus-replacement boundary.
Direct answer
An AC diagnostic visit commonly plans around $90-$250. Many electrical, drain, fan, and control repairs land around $180-$1,600, while leak work, evaporator coils, compressors, refrigerant, emergency service, and access can exceed $2,000-$4,500. Require a measured diagnosis before treating a range as a quote.
AC Repair Cost by Diagnosed Scope
| Repair category | Planning range | Evidence to request |
|---|---|---|
| Diagnostic or service call | $90-$250 | Symptoms, temperature split, electrical readings, fault history, fee-credit policy, and the next authorized step. |
| Capacitor, contactor, or small electrical part | $180-$650 | Measured capacitance or voltage, failed part, connected load, labor, and final startup test. |
| Condensate drain, switch, or pump | $150-$550 | Blockage location, drainage route, overflow protection, water damage boundary, and flow test. |
| Condenser fan or blower motor | $450-$1,600 | Motor type, amperage, capacitor/module, airflow or fan operation, labor, and part warranty. |
| Leak search, repair, and recharge | $600-$2,800 | Leak location and method, repair, evacuation, refrigerant type and quantity, pressure test, and performance data. |
| Evaporator coil or compressor | $1,200-$4,500+ | Confirmed failure, matched-part availability, refrigerant and oil scope, warranty, labor, and a separate replacement option. |
Symptoms Are Not a Parts Diagnosis
The same symptom can come from airflow, electrical, control, refrigerant, or mechanical faults. Use the symptom to define the test—not to authorize a guessed replacement.
| Symptom | Possible scope | What a useful diagnosis shows |
|---|---|---|
| Outdoor unit hums but will not start | Capacitor, contactor, controls, motor, power, or compressor | Voltage, capacitance, amp draw, winding and control checks—not a parts guess. |
| Air is warm or cooling is weak | Airflow, coil, refrigerant, compressor, duct, or load issue | Return/supply temperatures, airflow, coil condition, pressures where appropriate, and load context. |
| Ice on the coil or refrigerant line | Low airflow, dirty coil, fan fault, metering issue, or refrigerant loss | Resolve airflow first, document coil and filter condition, then perform qualified sealed-system tests. |
| Water near the air handler | Drain blockage, failed pump/switch, frozen coil, pan, or installation issue | Drain and pan inspection, flow test, source confirmation, and water-damage exclusions. |
| Breaker trips or wiring smells hot | Motor, compressor, wiring, disconnect, breaker, or control fault | Stop repeated resets and require qualified electrical diagnosis and written safety findings. |
Repair or Replace the Air Conditioner?
Refrigerant loss
Find the leak before recharge
Leak location, repairability, refrigerant type, coil condition, recharge quantity, and written test results.
Major coil or compressor work
Price both paths
System age, matched-equipment availability, remaining warranty, refrigerant transition, labor, and full replacement scope.
Repeated faults or comfort failure
Review the whole system
Load, duct airflow, sizing, electrical supply, maintenance history, and whether another repair solves the root cause.
AC Repair Quote Checklist
- Ask what was measured before a part was recommended: temperatures, voltage, capacitance, amp draw, airflow, pressure, or leak-test findings.
- Separate the diagnostic fee, permanent repair, refrigerant, after-hours charge, return visit, permit, and any code or electrical correction.
- Require the exact refrigerant type and billed quantity; do not treat repeated topping-off as a documented leak repair.
- List part and labor warranties separately and confirm whether the proposed coil, compressor, or controls preserve manufacturer coverage.
- For a major repair, request a separate complete replacement proposal without letting an emergency deadline erase the scope comparison.
FAQ
How much does AC repair cost?
A diagnostic visit may run roughly $90-$250. Many electrical, drain, or control repairs fall around $180-$1,400, while refrigerant leaks, coils, compressors, emergency timing, and difficult access can push the complete job above $2,000. An onsite diagnosis is still required.
Is adding refrigerant an AC repair?
Not by itself when refrigerant escaped through a leak. Ask for the refrigerant type, leak-search method, confirmed leak location, repair, evacuation, charged quantity, and final operating measurements.
Should I repair or replace an old air conditioner?
Compare the diagnosed fault, system age, repeat failures, matched-part availability, refrigerant, warranty, duct and airflow condition, comfort, and the complete written cost of both choices.
Why is an AC compressor repair expensive?
The scope can include diagnosis, refrigerant recovery, compressor and related parts, brazing, evacuation, recharge, electrical work, startup testing, and substantial labor. Ask whether all required materials and return visits are included.
Can I diagnose a bad AC capacitor myself?
Symptoms overlap with power, control, motor, and compressor faults, and the equipment contains high voltage and stored electrical energy. Use a qualified diagnosis rather than opening energized equipment.
Methodology
The estimator organizes broad allowances by suspected repair, diagnostic fee, system age, service timing, and refrigerant context. It cannot diagnose electrical, airflow, or sealed-system faults and does not replace an address-specific written proposal. Last reviewed October 12, 2026.