Generator Installation in Seattle, WA
Seattle City Light customers averaged 5.4 hours without power in 2024 — far below the US average of 11 hours. Sustained outages are rarer here than in most of the country, but storm and equipment-driven interruptions still happen — and homeowners with medical equipment, a home office, a well pump or a sump pump often want backup regardless of the average. Below are generator installers serving Seattle and the rest of King County, ranked by reputation.
How often the power actually goes out in Seattle
2024 · EIA data5.4 hours
average time a Seattle City Light customer spent without power
49%
of the US average of 11 hours — better than typical
1.1
power interruptions per customer that year
Excluding major event days — hurricanes, ice storms and the like — the figure drops to 111 minutes. The gap between the two is the part a standby generator or home battery is really for.
Source: US Energy Information Administration, Form 861 reliability filing for City of Seattle - (WA) (IEEE 1366 methodology). SAIDI measures the average minutes a customer was without power across the year. National reliability in 2024 was heavily affected by Hurricanes Beryl, Helene and Milton.
1.Switch Electric Home Energy
EliteElectrician
95
GridFree Score
★★★★★ 5 · 752
2.As You Wish Electric, Plumbing, Heating & Air
EliteElectrician
94
GridFree Score
★★★★ 4.9 · 3323
93
GridFree Score
★★★★ 4.8 · 679
91
GridFree Score
★★★★ 4.9 · 265
5.Kitsap Diesel & Generator Repair
Top ratedElectric generator shop
GeneracCummins
89
GridFree Score
★★★★ 4.6 · 96
6.Product Electric, Heating, and Cooling Seattle
Top ratedElectrician
87
GridFree Score
★★★★★ 5 · 60
87
GridFree Score
★★★★ 4.8 · 128
8.Generator Supercenter of Puget Sound
Top ratedElectric generator shop
86
GridFree Score
★★★★★ 5 · 55
9.Gentech Washington Inc
Top ratedElectrician
86
GridFree Score
★★★★★ 5 · 50
86
GridFree Score
★★★★★ 5 · 55
11.Washington Generators LLC- Woodinville
Top ratedElectric generator shop
84
GridFree Score
★★★★ 4.9 · 39
12.Washington Generators- Poulsbo
Top ratedElectrician
82
GridFree Score
★★★★★ 5 · 21
80
GridFree Score
★★★★★ 5 · 12
65
GridFree Score
★★★ 3.8 · 16
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Get listed →Frequently asked questions
How much does generator installation cost in Seattle?
In Seattle, a whole-house standby generator (18–26 kW) typically runs $10,000–$20,000 installed, including the transfer switch, gas connection, pad and permits. A smaller essentials-only unit (10–14 kW) runs $8,000–$13,000. A portable generator with an interlock kit is the budget option at $800–$2,000.
Do I need a permit for a generator in Seattle, WA?
Almost everywhere, yes. A standby generator needs an electrical permit and usually a gas/plumbing permit, and most states require the work be done by a licensed contractor. A reputable Seattle installer pulls the permit for you — treat anyone who offers to skip it as a red flag, since unpermitted work surfaces at resale and can void insurance claims.
Who installs generators in Seattle?
Licensed electricians and specialized generator dealers handle installation. A standby generator also needs a gas connection, so many jobs involve both an electrician and a plumbing contractor — dealers coordinate both.
Why are outages common around Seattle?
Seattle City Light customers averaged 5.4 hours without power in 2024 — far below the US average of 11 hours. Sustained outages are rarer here than in most of the country, but storm and equipment-driven interruptions still happen — and homeowners with medical equipment, a home office, a well pump or a sump pump often want backup regardless of the average.
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