Dept. of Labor and Industries (L&I): Verify a Contractor, Tradesperson or Business
Website: https://secure.lni.wa.gov/verify/ Phone: 360-902-5800 You can check on the status of a contractor’s licensing and bonds through the Department of Labor and Industries. If you’d like assistance or more information on contractors and permitting requirements and how they apply to your situation, please contact us at 360-902-5800, and we will do our best to help.