Washington Professional License Lookup
Verify professional licenses in Washington. Search by name, license number, or business name.
Browse by Profession
General Contractors
Licensed general contractors for residential and commercial construction
Electricians
Licensed electricians for residential and commercial electrical work
Plumbers
Licensed plumbers for residential and commercial plumbing
HVAC Technicians
Licensed HVAC contractors for heating, ventilation, and air conditioning
Roofing Contractors
Licensed roofing contractors
Licensing in Washington
Washington requires state-level licensing for contractors. The licensing authority is the Washington L&I.
Visit Washington L&I →How to Verify a Contractor License in Washington
Before hiring a contractor in Washington, it's essential to verify their license status. LicensedCheck makes this easy by aggregating public license data from the Washington L&I into a fast, searchable database. Simply enter the contractor's name or license number in the search bar above to check their current license status, expiration date, and any disciplinary history.
In Washington, contractors are required to hold a valid state license issued by the Washington L&I. Working with an unlicensed contractor can leave you unprotected and potentially void your homeowner's insurance coverage.