Should you repair or replace your heat pump?
Updated August 2026
← Every repair-or-replace call
A heat pump past 10–12 years that needs a compressor or coil repair is a replace; a newer one with a bad capacitor, reversing valve, or defrost board is a repair. Those control and electrical faults run $200–1,500, easy to justify against a new heat pump at $5,500–12,000 installed. Because a heat pump runs year-round for both heating and cooling, it wears faster than a cooling-only AC and typically lasts only 10–15 years. In 2026 there is a thumb on the scale toward replacement: federal and utility rebates on high-efficiency models can offset a large share of a new system.
The short version
The 10-year line matters more for a heat pump than for most equipment, because it works twice as hard as a unit that only cools. Under that line, repair the reversing valve, defrost board, or capacitor and keep going. Past 10–12 years, apply the 50% rule: if a compressor or coil fix runs more than half a new system, replace. What tilts the 2026 decision is money you would leave on the table by repairing. Federal tax credits and utility rebates on qualifying high-efficiency heat pumps can cut thousands off a replacement, so a big repair on an old unit often costs more over the next few years than upgrading now.
Your situation, decided
| Situation | Verdict | Why |
|---|---|---|
| Under 10 years, bad capacitor, defrost board, or sensor | Repair | A $200–1,500 control part on a system with life left |
| Reversing valve failed, unit under 10 years | Repair | Worth fixing on a younger system; the rest is sound |
| Compressor failed, heat pump past 12 years | Replace | A major repair on an old unit fails the 50% rule |
| Coil leaking, system past 10 years | Replace | An old refrigerant circuit; a matched new system is smarter money |
| Past 12–15 years, weak heating and repeated repairs | Replace | End of service life, and 2026 rebates favor a new unit |
| Corroded coil at 8–10 years in coastal salt air | Replace soon | Coastal units age faster; budget before the compressor goes |
What each path costs
Repairs typically run $200–1,500; a replacement is $5,500–12,000 installed. A heat pump lasts 10–15 years, less in salt air. The replace conversation starts around year 10–12, and 2026 rebates pull it earlier for high-efficiency upgrades. Price your own number on the home maintenance cost calculator before you commit either way.
The repair-or-replace call is easy when you know the unit's age and service history. OnOtto keeps both, plus the maintenance that delays this decision for years.
Start your home's service log, freeFrequently asked questions
Do 2026 rebates really change the repair-or-replace math?
They can shift a close call decisively. Federal tax credits and many utility programs pay toward qualifying high-efficiency heat pumps, and stacked together they offset a real part of a $5,500–12,000 installation. That effectively lowers the replacement side of the ledger, so a $1,500 repair on a 12-year-old unit may cost more over the next few years than upgrading now. Check what your utility and current federal programs offer before authorizing a big repair, since the net price of new equipment may surprise you.
Why do heat pumps wear out faster than an AC?
Because they run in both seasons. A cooling-only AC rests all winter, while a heat pump reverses and keeps working to heat the house, so it logs far more compressor hours per year. That is why heat pumps last 10–15 years against 12–15 for central AC, and why the 10-year line is where the replace conversation begins. Coastal salt air shortens it further by corroding the outdoor coil. Regular service and clean coils keep it in the upper half of that range.
Can I replace just the outdoor heat-pump unit and keep the indoor coil?
Usually not, and it is a false economy. The outdoor unit and indoor coil are matched for refrigerant and capacity; pairing a new condenser with an old coil hurts efficiency, can void the warranty, and rarely saves money once labor is counted. If the compressor has failed past year 12, replace the system as a set. On a unit still under 10 years with a warranty-covered part, a targeted repair is the right move. Match the pair, or replace the pair.