Washington L&I coverage

Washington Contractor License Lookup

Search live Washington L&I contractor coverage across construction, electrical, plumbing, and elevator license records.

Verify a contractor license

Results are informational and should be confirmed against the official Washington State Department of Labor & Industries record before making a hiring or compliance decision.

Authority

Washington State Department of Labor & Industries

Live coverage

Statewide construction, electrical, plumbing, and elevator contractors

Refresh cadence

Daily at 6:00 PM Pacific

Statewide Washington contractor scope

The official L&I source contains statewide construction, electrical, plumbing, and elevator contractor records. Construction records include general and specialty classifications; the dataset is not limited to contractors whose mailing address is in Washington.

StateLicense preserves L&I's raw status and type codes while mapping common identity, status, specialty, date, contact, authority, and jurisdiction fields into the normalized API contract.

Production refresh and verification

Washington records are loaded through a guarded production refresh and reconciled against the official source. Representative active and adverse records were verified through the production API during rollout.

  • Reconcile the official, downloaded, parsed, and database record counts.
  • Confirm construction, electrical, plumbing, and elevator license types.
  • Verify active, expired, suspended, inactive, and revoked mappings.

Fields to include in your review

  • License status and number
  • Business and principal identity
  • License type and specialty
  • Issue, expiration, and suspension dates
  • Phone and mailing location
  • Source and record timestamps

Freshness: Daily at 6:00 PM Pacific. Field availability depends on the source record; unavailable values are not inferred.