Washington Contractor Licensing

Trade-by-trade licensing requirements for Washington, sourced directly from the state regulatory board and verified by the CLR Editorial Review Desk. We currently publish 14 published trade guides, with direct links to each underlying board, statute, or candidate bulletin.

Published guides: 14
Exam-backed: 11
Bond-backed: 12
Local / municipal: 0
Avg initial fee: $213

How licensing works in Washington

Washington is not a one-size-fits-all licensing market. Across the 14 guides currently live on this state hub, 11 require a formal trade examination and 12 require a surety bond before the credential can issue. The currently published entries on this page are statewide programs, which makes this state easier to compare across trades than states that rely heavily on local registration.

The point of this state page is to give you a fast read on the regulatory model before you dive into a specific trade. Start with the trades grid below if you already know your specialty. If you are comparing jurisdictions, use the cost calculator for first-year cost and the reciprocity matrix for license portability.

Main boards and agencies

Washington State Department of Labor and Industries

L&I registers contractors statewide, certifies individual electricians and plumbers, administers prevailing wage, and conducts complaint investigations.
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Washington State Department of Labor & Industries — Contractor Registration

State agency that registers construction contractors — both general and specialty, including the "swimming pools, spas and hot tubs" specialty — under the Contractor Registration Act. L&I verifies the surety bond, liability insurance, and UBI number, issues the registration, and enforces registration requirements. It does not administer a trade or law exam for this classification.
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Washington State Department of Licensing

The Washington State Department of Licensing issues and regulates home inspector licenses through its Home Inspector Program. The Home Inspector Advisory Licensing Board advises the DOL Director and approves the required curriculum and continuing education courses.
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Licensed trades

Compare Washington against other states

Every trade above also has a national comparison hub showing how Washington's exam, bond, fee, and experience requirements stack up against the other 50 jurisdictions.

Best starting points in Washington

Budget

Estimate first-year cost

Compare filing fees, bond premiums, insurance assumptions, and renewal cost before you apply.

Mobility

Check reciprocity pathways

See whether this state accepts NASCLA or uses bilateral reciprocity for the trade you hold now.

Research

Search related guides

Jump directly to linked state and trade pages if you are comparing multiple jurisdictions side by side.