Licensing by state

Hiring a contractor in Washington

Statewide licence. This state licenses contractors at state level, so there is a single register to check and a licence number that means something everywhere in the state.

Who licenses

Washington State Department of Labor & Industries (L&I), Contractor Registration program plus the Electrical and Plumbing licensing programs

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In our directory

66,524 licensed businesses from Washington.

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What to do before you hire in Washington

  • Ask for the licence number and check it yourself against Washington State Department of Labor & Industries (L&I), Contractor Registration program plus the Electrical and Plumbing licensing programs. A contractor who will not give you the number is telling you something.
  • Get the full scope and price in writing before any money changes hands, and never pay the full amount up front.

Sourced from Washington State Department of Labor & Industries (L&I), Contractor Registration program plus the Electrical and Plumbing licensing programs and checked by downloading the state's own published file. Licensing rules change; verify with the authority before you hire.

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