12 reports. Enough for a reliable directional read.
Heat Pump Installation Cost in Washington
Read what 12 homeowners actually wroteHeat pump installation costs in Washington typically range from $10,000 to $25,000, with most homeowners paying around $15,000. According to data from 12 local projects, the middle 50% of installations fell between $13,500 and $16,250.
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Shaded band: middle 50% of reports (25th–75th percentile). Median tick in teal.
Most jobs land between $10,550.00 and $21,150.00 (5th–95th percentile). Ignoring 1 outlier below and 1 above.
Based on reports from Apr 2026 (first entries this month).
Data last updated Apr 8, 2026.
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The underlying prices behind this page.
Replaced gas furnace with a 24k air handler and a 12k ductless head from Mitsubishi for $10k from Tahoma heat and cooling.
We got quotes ranging from $11K to $35K from five different companies and ended up paying around $16K for a heat pump installation through Costco. They also gave us a $1,500 Costc…
Real homeowner write-ups, locked.
"Just got a heat pump installed in March with heat strips added for extremely cold days. Total cost was $12k."
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