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Benton County, Washington

Licensed Trade Records in Benton County, Washington

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Browse 1,446 verified licensed trade contractors registered across Benton County, Washington (including Kennewick, Richland, West Richland, Benton City). 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: Prosser

Municipalities in Benton County (12)

Select a city or town in Benton County to view local permit guidance and registered licensed trade records:

Kennewick 828Richland 299West Richland 112Benton City 74Prosser 58Dayton 29Eltopia 13Touchet 7Prescott 6Pomeroy 5Desert Aire 3Finley 3

1446 licensed trade records · Benton County, WA

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

All trades directory — Benton County

1446 matching records across 12 open municipalities · 25 on this page · Contactable records first, then alphabetical.

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Show registered-address map (6 records on this page)5 approximate areas

Shaded areas mark approximate postal or city locations, not premises or service areas. Circle sizes are illustrative, not postal boundaries. Some records share the same area. Private addresses are excluded.

2ZIP 993361ZIP 993521ZIP 993531ZIP 840091ZIP 99354Approximate postal/city centroid schematic (5 areas)

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Frequently Asked Questions — Benton County, WA

How are licensed trade credentials verified in Benton County, Washington?

Records across Benton County are sourced directly from the Washington State Department of Labor & Industries (WA L&I). Revised Code of Washington RCW 18.27 (Contractor Registration), RCW 19.28 (Electrical EL01–EL06), and RCW 18.106 (Plumbing PL01/PL02)

Which municipalities are covered in the Benton County directory?

Benton County coverage includes Kennewick, Richland, West Richland, Benton City, Prosser, with County Seat in Prosser.

Are licensed contractors in Benton County, WA required to carry insurance and surety bonds?

Yes. Under Washington licensing authority regulations, licensed trade contractors typically must maintain active Commercial General Liability insurance, appropriate surety bonds, and state Workers' Compensation coverage before pulling municipal permits.

Other Counties in Washington

King CountyPierce CountySnohomish CountySpokane CountyClark CountyWhatcom CountyThurston CountyFranklin CountyYakima CountyKitsap CountyChelan CountyDouglas CountyGrant CountyWalla Walla CountyMason CountyKittitas CountyLewis CountySkagit CountyCowlitz CountyIsland CountyClallam CountyStevens CountyWhitman CountyAsotin CountyPend Oreille CountyLincoln CountySan Juan CountyJefferson CountyGrays Harbor CountyOkanogan CountyKlickitat CountyAdams CountyFerry County

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.
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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.