Heat Pump Cost in Seattle, Washington
Typical installed price for a 3-ton ducted system in the Seattle–Tacoma–Bellevue, WA area, before incentives.
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Cost overview
Seattle's mild winters make standard heat pumps highly efficient here — COP typically 3.0+ year-round. Many older homes have electric baseboard or oil; ductless multi-zone systems are the most common retrofit. PSE and Seattle City Light offer rebates $800–$1,600. Washington's Clean Buildings Act has accelerated commercial adoption and contractor availability.
Below is a typical breakdown for a whole-home replacement. Your actual quote will vary based on home size, ductwork condition, electrical panel capacity, and which contractor you choose. We recommend getting at least three quotes — pricing variance between installers in Seattleis often 20–30% for an identical system.
What you're actually paying for
| Component | What's included | Low | High |
|---|---|---|---|
| Equipment | Outdoor unit, indoor air handler, refrigerant line set | $4,410 | $7,686 |
| Labor | Seattle HVAC labor at ~$105/hr, 16–28 hr install | $1,680 | $2,940 |
| Ductwork | Modifications, sealing, and balancing existing ducts | $800 | $2,400 |
| Electrical | Dedicated 240V circuit; panel upgrade if needed | $400 | $1,800 |
| Permits & inspection | Seattle mechanical permit + inspection fees | $290 | $370 |
| Total project | $7,580 | $15,196 | |
Labor reflects Seattle BLS metro wage data for HVAC mechanics. Permit fee from the Seattledevelopment services schedule.
Ducted vs. ductless vs. geothermal
| System type | Installed cost | Efficiency | Best for |
|---|---|---|---|
| Ducted central | $9,000–$16,000 | SEER2 16–20 | Homes with existing ductwork |
| Ductless mini-split | $5,000–$12,000 | SEER2 18–30 | Additions, retrofits, room-by-room control |
| Geothermal | $22,000–$40,000 | COP 3.5–5.0 | Long-term owners with yard space |
For most Seattle homes with existing AC ductwork, a ducted central heat pump is the fastest and cheapest path. Ductless makes sense for additions, sunrooms, or homes without ducts. Geothermal pencils out only for owners staying 15+ years.
Rebates & incentives in Washington
Stackable incentives can take 30–60% off the sticker price. Use the calculator below to see your specific net cost.
| Program | Up to | Who |
|---|---|---|
| Snohomish PUD Ducted Heat Pump RebateRebate | $2,500 | Any income |
| Seattle Clean Heat Oil-to-Heat-Pump RebateRebate | $2,000 | Any income |
| Tacoma Power Heat Pump RebateRebate | $2,000 | Any income |
| PSE Heat Pump RebateRebate | $1,500 | Any income |
| Clark Public Utilities Heat Pump RebateRebate | $1,250 | Any income |
| Seattle City Light Heat Pump RebateRebate | $600 | Any income |
| Avista WA Heat Pump Instant DiscountRebate | $600 | Any income |
Not currently available: WA HEEHRA (income-qualified) (closed).
Amounts are program caps, verified 2026-10-01. Eligibility and per-ton math on the Washington rebates page.
Used to determine HEEHRA eligibility (under 80% area median income).
- Snohomish PUD Ducted Heat Pump Rebate−$2,500
- Seattle City Light Heat Pump Rebateexcluded — pick one: PSE Heat Pump Rebate wins
- PSE Heat Pump Rebateexcluded — pick one: Seattle Clean Heat Oil-to-Heat-Pump Rebate wins
- Tacoma Power Heat Pump Rebateexcluded — pick one: Seattle Clean Heat Oil-to-Heat-Pump Rebate wins
- Seattle Clean Heat Oil-to-Heat-Pump Rebateexcluded — pick one: Snohomish PUD Ducted Heat Pump Rebate wins
- Avista WA Heat Pump Instant Discountexcluded — pick one: Snohomish PUD Ducted Heat Pump Rebate wins
- Clark Public Utilities Heat Pump Rebateexcluded — pick one: Snohomish PUD Ducted Heat Pump Rebate wins
Estimate only. Includes only programs accepting applications today — waitlisted or closed programs are excluded. Mutually exclusive programs (e.g. HEEHRA vs HOMES) and project-cost caps are applied per current program rules; confirm with your installer and utility before signing.
Why Seattle's climate matters
Seattle sits in IECC climate zone 4C (mixed-marine). That means sizing, refrigerant choice, and equipment selection should optimize for balanced heating and cooling. Ask installers specifically about SEER2 efficiency and dehumidification capability.
Popular brands in this market: Mitsubishi, Daikin, Fujitsu, Bosch. All major brands have comparable warranty terms (10-year parts, 5-year labor when registered).