Repair vs replace

Should you repair or replace a heat pump?

Use this calculator with typical heat pump 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-$1,600

Planning midpoint: $925

Typical replacement range

$5,500-$14,000

Planning midpoint: $9,750

Expected life

14 years

A planning average, not a failure date

Typical heat pump repair range: $250- $1,600. Expected lifespan: 14 years.

How to judge the diagnosis

Electrical controls, capacitors, sensors, and fan motors can support repair. Compressor failure, major coil leaks, or poor cold-weather capacity may justify comparing a matched replacement system.

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 heat pump is in good condition, and the repair carries a useful warranty.

What replacement pricing should include

A complete project may involve the outdoor unit, indoor coil or air handler, controls, electrical work, refrigerant lines, permits, condensate work, commissioning, and backup-heat configuration.

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

  • Reversing valve
  • Capacitor
  • Fan motor
  • Compressor

Repair signals

  • Electrical component failure
  • System is under 10 years
  • Indoor unit is compatible

Replace signals

  • Compressor failure
  • Poor cold-weather performance
  • Major refrigerant leak

Safety comes before the calculation

Shut the system down for burning odors, damaged wiring, severe icing that contacts the fan, or water near electrical components. Refrigerant circuits require qualified service.

Efficiency and operating cost

Use climate-specific performance and expected backup-heat use. Headline efficiency ratings alone do not show cold-weather capacity, installation quality, or the effect of duct losses.

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 is the measured failure and repair warranty?
  2. 2. How does capacity change at local winter temperatures?
  3. 3. Will indoor equipment and controls be replaced or reused?
  4. 4. Are commissioning and rebate documents included?

Frequently asked questions

Is it worth repairing a heat pump?

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 a heat pump?

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.