TradeCheck

Licensed Plumbing Contractors in Mount Vernon

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

24licensed plumbing contractors
17active today
7expired
29.2%expiry rate

Of the 24 plumbing contractors licensed in Mount Vernon County, 7 are operating on an expired license, or 29.2%. 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 24 of 24

24 listed
LicenseeLicense #ExpiresStatus
A1 PLUMBING LLCA1PLUPL752O2October 6, 2027Active
ABSOLUTE PLUMBINGABSOLP*799MBJuly 12, 2028Active
ALL CLEAR PLUMBING LLCALLCLCP785RHDecember 9, 2026Active
ALL TIME PLUMBING & HTG LLCALLTITP759LTAugust 21, 2027Active
BARKER DRILLINGBARKED*784CGFebruary 7, 2026Expired
Barker Drilling LLCBARKEDLA682LJune 29, 2028Active
BOOKER'S PLUMBING LLCBOOKEPL796NQAugust 28, 2027Active
CPI PLUMBING & HEATING INCCPIPLPH791NBJuly 20, 2023Expired
CPI PLUMBING HEATING & CNG LLCCPIPLPH78041August 31, 2026Suspended
DELK'S PLUMBING LLCDELKSPL775BZJanuary 19, 2027Active
DENALI PLUMBING LLCDENALPL764CWFebruary 16, 2026Suspended
DOCS PLUMBING LLCDOCSPPL792RCNovember 9, 2023Expired
EXPERIENCE PLUMBING LLCEXPERPL795PEOctober 18, 2027Active
FLOW STATE SERVICESFLOWSSS741K1May 21, 2028Suspended
FREES PLUMBING SERVICE LLCFREESPS798OSAugust 31, 2027Active
J & H PLUMBING SERVICES INCJHPLUHP772MFJuly 6, 2027Active
LOWE LLCLOWELL*780O7October 4, 2026Expiring soon
MIKE'S REPAIRMIKESR*782KDMay 19, 2028Active
NEWTON'S PLUMBINGNEWTOP*788B7February 7, 2028Active
NW Custom Plumbing LLCNWCUSCP791RMJanuary 24, 2028Active
RMI PLUMBING LLCRMIPLPL769BWJanuary 30, 2028Active
ROBERT'S PLBG/HM IMPR SVCS INCROBERPI773DFMarch 13, 2027Active
TRADITIONS PLUMBING LLCTRADIPL781DWFebruary 2, 2027Suspended
Z'S PLUMBING LLCZSPLUPL759O6September 26, 2027Active

Before you hire in Mount Vernon 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.