Search 173,144 Washington contractor license records instantly. Free verification tool powered by official state licensing board data.
Enter a contractor's name or license number to instantly check their status.
Search Washington LicensesGo to the List a Service verification tool and enter the contractor's business name, owner name, or license number. Select Washington from the state dropdown to narrow results.
Check the license type, current status (Active, Expired, or Revoked), license number, and expiration date. An active license means the contractor is currently authorized to perform work in Washington.
For the most current information, cross-reference the license directly with the Department of Labor & Industries (L&I). This ensures you have the latest data on any disciplinary actions or status changes.
A valid license is essential, but also request proof of liability insurance, workers' compensation coverage, and at least three recent references. This provides a complete picture of the contractor's qualifications.
The contractor is not currently authorized to perform work. They may be operating illegally.
A legitimate contractor will readily share their license information for verification.
If the contractor cannot be found in state records, they may be unlicensed.
A plumbing license does not authorize electrical work. Ensure the license covers your project.
Use the free List a Service verification tool to search by contractor name or license number. You can also check directly with the Department of Labor & Industries (L&I).
Washington currently has 173,144 contractor license records on file, with 87,269 (50%) in active status.
Hiring an unlicensed contractor puts you at risk. You may have no legal recourse if work is done poorly, and you could be liable for workplace injuries since unlicensed contractors often lack required insurance and bonding. Some states also impose fines on homeowners who knowingly hire unlicensed contractors.
Yes. List a Service provides completely free contractor license verification across all 50 states. There are no paid tiers, subscriptions, or hidden fees.
Add a free contractor verification widget to your website. Let your visitors check contractor licenses instantly.
Get the Widget