Licensed contractors in Washington: what we cover
Last refreshed: October 21, 2026
Covered. 53,755 active license records from the Washington L&I Contractor License Data (data.wa.gov).
- Trades: general/building, electrical, plumbing, HVAC, roofing
- Source: Washington L&I Contractor License Data (data.wa.gov)
- Verify any license: Washington official license lookup
- Refreshed: weekly (last run October 21, 2026)
Caveats: HVAC and roofing are matched from the registered specialty, so contractors registered as GENERAL who also do HVAC or roofing appear under general only. We show city, ZIP and phone (when the state lists one) but never street addresses.