Cost guide
Average installed cost range in Seattle
The average cost in Seattle ranges from $9,832 to $11,903. This is adjusted for local labor rates (Factor: 1.10).
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Estimated range
$9,832 - $11,903
Permits
Local factors that change price
- Permitting approval from Seattle Department of Construction and Inspections
- Fuel availability (natural gas vs propane)
- Electrical panel upgrades and transfer switch type
Installations in Seattle typically require approval from Seattle Department of Construction and Inspections. Always hire a licensed electrician and schedule the final inspection.
Recommended setup
Typical setup & recommended kW
Most homes in Seattle land in the 18kW to 22kW range for whole-home backup, but HVAC load and fuel access drive the final sizing decision.
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FAQ
FAQ
What is the average installed cost in Seattle?
Most projects fall within the localized range based on labor, fuel, and permitting assumptions.
What can change the final quote?
Panel upgrades, site access, and fuel line length are common drivers.
More resources
More cost resources
- Washington Generator Installation Cost
- Generator Installation Cost by Location
- Home Generator Installation Cost