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Licensed Trade Records in Snohomish County, Washington

Browse 7,626 verified licensed trade contractors registered across Snohomish County, Washington (including Everett, Marysville, Edmonds, Lynnwood, Bothell, Lake Stevens). Every record is compiled from Washington State Department of Labor & Industries (WA L&I) public credential files under Revised Code of Washington RCW 18.27 (Contractor Registration), RCW 19.28 (Electrical EL01–EL06), and RCW 18.106 (Plumbing PL01/PL02).

Official State Authority: Washington State Department of Labor & Industries (WA L&I) Official Registry · County Seat: Everett

Municipalities in Snohomish County (17)

Select a city or town in Snohomish County to view local permit guidance and registered all trades records:

Everett 1697Lynnwood 1011Snohomish 858Bothell 759Marysville 748Lake Stevens 475Arlington 467Edmonds 394Monroe 345Stanwood 209Mukilteo 152Mountlake Terrace 143Mill Creek 124Granite Falls 84Sultan 80Gold Bar 42Brier 38

7626 all trades records · Snohomish County, WA

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Public Directory Quality: Official WA L&I license records across Snohomish County · Zero sponsored order · Never sold as a lead · How our data works →

All trades directory — Snohomish County

7626 matching records across 17 open municipalities · 25 on this page · Contactable records first, then alphabetical.

Before the first call

  • Describe the job and ask whether it is within their scope and service area.
  • Check the credential with its issuing authority and ask what applies where the work will happen.
  • Ask about insurance, availability, who will do the work, and a written scope.
  • Ask about callout fees, labor or fixed rates, materials, cancellation and any estimate charge.
Prepare a project brief

Verification Overview & Key Takeaways: How to Check Official Credentials

HomeCrafto displays source records with different scopes, including licenses, registrations, municipal permits and community records. A source entry is not proof of qualification for your job. Before signing a work order or paying a deposit, homeowners should confirm that the contractor’s credential number is active, verify that the license classification covers the specific trade scope required for the job, and request a current Certificate of Insurance (COI) directly from the issuing insurance carrier. Independent verification protects your property and ensures compliance with local building codes.

How do you verify a contractor license number and insurance on official portals (FAQ)?

You can verify active license standing and consumer protection rules directly through official government portals, including Washington L&I Contractor Verify, the California Contractors State License Board (CSLB), the Connecticut eLicense Portal, USA.gov State Consumer Protection Offices, and FTC Home Improvement Consumer Guidance. Always confirm municipal permit requirements with your local building department before work begins.