What are the Commercial Electrical Systems permit rules in Washington?

Washington enforces trade permit fee schedules determined by local AHJ building departments per county. General contractors and sub-trades must maintain active state licenses and bond filings ($10,000–$50,000).

Are sub-trade contractor surety bonds required in Washington?

Yes. Most Washington municipal building departments require trade contractors to file an active license bond prior to permit issuance.

⚡ STATEWIDE TRADE HUB (WA) 1 County Workstations

Washington Commercial Electrical Systems Permit Guide

Main service amperage fee schedules, single-line riser diagrams, and NEC codes. Compare municipal fee structures, plan check add-on rates, and contractor bond thresholds across Washington.

Washington Commercial Electrical Systems County Workstations

Select a county building department to calculate exact trade permit fees & bond rules

King County

King County Dept of Local Services & SDCI

2026 Verified

Plan Review Rate: 40%

Tech Surcharge: 4%

Mandatory Surety Bond: $12,000

Open King County Commercial Electrical Systems Workstation →