Repair vs replace

Should you repair or replace an air conditioner?

Use this calculator with typical air conditioner repair and replacement ranges. Adjust the defaults to match your quote before deciding.

Reviewed by the Fix or Keep editorial team · Updated September 18, 2026

Typical repair range

$250-$1,400

Planning midpoint: $825

Typical replacement range

$4,500-$12,000

Planning midpoint: $8,250

Expected life

15 years

A planning average, not a failure date

Typical air conditioner repair range: $250- $1,400. Expected lifespan: 15 years.

How to judge the diagnosis

A failed capacitor, contactor, or fan motor can be a contained repair. Compressor trouble, a major refrigerant leak, or a mismatched indoor and outdoor system changes the economics because labor, refrigerant, and compatibility work can be substantial.

Use the calculator's ratio as a starting point, then test the assumptions. A lower repair price is more persuasive when the failed part is confirmed, the rest of the air conditioner is in good condition, and the repair carries a useful warranty.

What replacement pricing should include

A complete estimate may include indoor and outdoor equipment, line-set work, electrical changes, permits, thermostat work, condensate drainage, duct corrections, commissioning, and removal of the old system.

Compare written, all-in totals. A sale price can look favorable until required accessories, installation, disposal, or work on connected systems is added.

Common failures

  • Capacitor
  • Contactor
  • Fan motor
  • Compressor

Repair signals

  • Capacitor or fan motor issue
  • System is under 10 years
  • Ductwork is healthy

Replace signals

  • Compressor failure
  • Obsolete refrigerant
  • High utility bills and uneven cooling

Safety comes before the calculation

Turn the system off if you smell burning, see damaged wiring, hear violent mechanical noise, or find water reaching electrical components. Refrigerant work should be handled by a qualified technician.

Efficiency and operating cost

Compare seasonal efficiency, climate performance, comfort, noise, and expected runtime rather than relying on the equipment price alone. Duct leakage and poor sizing can erase much of an efficiency upgrade.

Treat projected savings as a range. Utility rates, usage, weather, maintenance, sizing, and installation quality can matter as much as the efficiency rating printed on the product.

Questions to ask before approving work

  1. 1. What test confirms the failed component?
  2. 2. Is the refrigerant type currently serviceable?
  3. 3. Are the indoor and outdoor units compatible?
  4. 4. Does the price include permits, commissioning, and warranty registration?

Frequently asked questions

Is it worth repairing an air conditioner?

Repair is usually easier to justify when the failed part is confirmed, the total is comfortably below replacement, and the item has meaningful expected life left. Use your written quote rather than the default range.

When should I replace an air conditioner?

Replacement deserves a closer look when several major failures are likely, parts are unavailable, safety or reliability is compromised, or the all-in repair cost approaches a properly calculated replacement total.

Does the 50% rule always work?

No. A cost ratio is useful, but age, condition, warranty, installation cost, reliability, and the consequence of another failure can change the answer substantially.

How accurate are these cost ranges?

They are broad planning ranges. Model, location, labor rates, access, permits, parts, and the exact diagnosis can move a real quote outside the range.

Sources and scope

Planning guidance is informed by manufacturer service information and public resources from U.S. Department of Energy Energy Saver, ENERGY STAR, and the U.S. Consumer Product Safety Commission recall database. Cost figures are estimates, not quotes. See the calculator methodology.