Heat Pump Cost in Washington (2026)
A typical 3-ton ducted heat pump in Washington runs about $9,444–$12,776 installed — before any Washington state or utility rebates. Estimate yours below.
Average heat pump prices in Washington
Prices reflect a Washington cost index of 1.1× the national average, for a 3-ton system. Your actual price depends on home size, ductwork, brand and installer.
Heat pump cost by size in Washington
| Size | Home size | Ducted installed |
|---|---|---|
| 2 tons | ~1,300–1,500 sq ft | $7,387–$9,994 |
| 3 tons | ~1,950–2,250 sq ft | $9,444–$12,776 |
| 4 tons | ~2,600–3,000 sq ft | $11,501–$15,560 |
| 5 tons | ~3,250–3,750 sq ft | $13,558–$18,343 |
Washington rebates & incentives
Washington utility rebates. Note: the federal 25C/25D tax credits expired Dec 31, 2025, so Washington state and utility rebates are now the main incentives. Check your utility and the Washington energy office for current point-of-sale rebates. See our full Washington rebates guide.
What affects heat pump cost in Washington
- System type — ductless mini-splits are priced per zone; geothermal costs the most upfront but runs cheapest.
- Home size & ductwork — larger homes need more tonnage, and adding or modifying ducts adds labor.
- Local labor rates — Washington runs about 1.1× the national average, which is built into the prices above.
- Electrical work — some installs need a panel upgrade to add the new circuit.
How to lower your cost in Washington
- Stack every Washington state and utility rebate you qualify for (the federal credit ended in 2025).
- Get at least three quotes — installed prices vary widely between contractors.
- Right-size the system; an oversized unit costs more to buy and to run.
- Book in spring or fall, when installers are less busy and may discount.
Frequently asked questions
How much does a heat pump cost in Washington?
A typical 3-ton ducted system runs about $9,444–$12,776 installed, before any Washington state or utility rebates you may qualify for.
Are there heat pump rebates in Washington?
Yes — Washington utility rebates. (The federal 25C/25D tax credits expired at the end of 2025.) Amounts change, so confirm current programs with your utility.
Is a heat pump worth it in Washington?
For most homes, yes — especially when replacing oil, propane or electric heat, and after incentives. Use our savings calculator to check your numbers.
Heat pump cost in other states
⚠️ Estimates only. Verify current Washington rebate programs and get a professional quote before buying.