Pricing reviewed October 2026
A whole-house generator in Seattle is estimated at $7,500 – $31,200 installed, typically $12,500 – $18,800 (local factor 1.25×).
| Size | Est. installed in Seattle |
|---|---|
| 10–14 kW | $7,500 – $12,500 |
| 18–26 kW | $12,500 – $18,800 |
| 26+ kW | $18,800 – $31,200 |
Not sure what size you need? Use the generator sizing calculator · Choosing a brand? Read Kohler vs. Generac.
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Frequently asked questions
How much is a generator in Seattle?
About $12,500 – $18,800 typical installed by our estimate.
Generator figures marked as from the 2026 cost guide (whole-house generator $6,000–$25,000 installed, typically $10,000–$15,000; unit $3,000–$6,000; installation $3,000–$5,000; 10–14 kW $6k–$10k, 18–26 kW $10k–$15k, 26+ kW $15k–$25k) come from the HomeGeneratorCost 2026 guide. Add-on ranges, load wattages and city factors are editorial estimates. Get written quotes from licensed installers.