TradeCheck

Licensed Construction Contractors in Columbia

Every construction contractor on record with the Washington State Department of Labor & Industries in Columbia County, Washington, with current license status computed August 17, 2026. Listed A to Z; use the filters to narrow it.

22licensed construction contractors
10active today
12expired
54.5%expiry rate

Of the 22 construction contractors licensed in Columbia County, 12 are operating on an expired license, or 54.5%. That is worth checking before you sign anything: an expired license can invalidate your permit and complicate an insurance claim if the work goes wrong.

Looking to hire rather than to check someone? Filter the list below by name, or use the Active chip to hide anyone whose license has lapsed.

Licensees 1 to 22 of 22

22 listed
LicenseeLicense #ExpiresStatus
AVANTECH INCAVANTI*829NOSeptember 14, 2024Expired
CENTURION STONE INCCENTUSI774R2December 21, 2025Expired
COLITE INTERNATIONAL LTDCOLITIL764CKFebruary 7, 2028Active
D S CONSTRUCTION SERVICES LLCDSCONSC791DHOctober 21, 2027Active
DECO WELL LLCDECOWWL753P7October 27, 2027Active
Electric Guard Dog LLCELECTGD877JEApril 10, 2027Active
EMERY SAPP & SONS INCEMERYSS773QONovember 30, 2027Suspended
ENVIRONMENTAL DYNAMCS INTL INCENVIRDI814DNApril 21, 2023Expired
FIRST FINISH LLCFIRSTFL795MTAugust 2, 2023Expired
GOLD MOUNTAIN CONTRACTING LLCGOLDMMC833DZMarch 27, 2027Active
HANDRAIL DESIGN INCHANDRDI822PCOctober 2, 2022Suspended
HUMPHREY RICH CONST GROUP INCHUMPHRC790LQOctober 22, 2027Suspended
J & J SERVICE SOLUTIONS LLCJJSERJS826J6March 10, 2025Expired
MID AMERICA CONTRACTING INCMIDAMAC811CGSeptember 18, 2026Suspended
NORTHWEST CONST & SUPPLY INCNORTHCS000N5July 24, 2027Active
PULLMAN POWER LLCPULLMPL990BBMay 5, 2027Active
PULLMAN SST INCPULLMSI863JBMay 5, 2028Active
STRUCTURAL PRESERV SYSTEMS LLCSTRUCPS938B2May 10, 2027Active
STRUCTURAL TECHNOLOGIES LLCSTRUCTL852P1October 19, 2027Active
STRUCTURAL TOPCOR LLCSTRUCTL845JLApril 11, 2020Expired
TOWER CONSULTANTS INCTOWERCI826MCSeptember 8, 2022Expired
Weller Construction IncWELLECI916CEFebruary 18, 2025Expired

Before you hire in Columbia County

  1. Match the license number on this page to the name on the contract. Licenses belong to a person or a company, not to a crew.
  2. Confirm the record at L&I directly. This page mirrors their daily file, but they are the authority.
  3. Ask for a certificate of insurance separately. L&I licensing does not verify that a contractor carries liability coverage.
  4. Get the license number written into the written estimate.