Plumbing contractors in Oak Harbor, WA

11 active plumbing contractors are registered with Washington L&I at a Oak Harbor, WA address. 20 registrations are on record in all, including expired and other statuses.

By the numbers

Active registrations: 11
Registrations on record, all statuses: 20
Registered in the last 12 months: 3
Median years registered, active: 4
Suspension on record: 1
Complaint records matched: 2

Counts of L&I contractor registration records, computed October 8, 2026. Active means the state's record shows ACTIVE status. Years are counted from each registration's effective date.
Suspension on record: registrations with SUSPENDED status, plus active or re-licensed registrations that carry a suspension date.
Complaint records matched: contractors with at least one Attorney General consumer complaint record under the same business name and city. A complaint record is not a finding of wrongdoing.
Sources: L&I Contractor License Data - General andAttorney General Consumer Complaints. Seehow directory numbers are computed.

Longest registered

HARBOR PLUMBING SOUTH LLCRegistered since July 30, 2021
SCOTTIE'S PLMBG & REPAIR INCRegistered since August 17, 2021
GOLDEN PLUMBING PLLCRegistered since October 14, 2021
TUBULAR PLBG/GRN THMB GRDN PRJRegistered since October 25, 2021
PRECISION PLMBNG & BCKFLW TSTGRegistered since December 6, 2021

Recently registered

ISLAND PLBG & PIPE WORKS LLCRegistered on October 5, 2026
SCOTTIE'S PLUMBING LLCRegistered on August 31, 2026
CK BACKFLOW LLCRegistered on January 7, 2026
R AND L PLUMBINGRegistered on April 5, 2024
THREE DRAKES MECH & PLUMBINGRegistered on January 23, 2023

Active registrations, by the effective date on the state's record.

11 active registrations

Businesses by registered name and license number. Show all 20 registrations on record, including expired.

CK BACKFLOW LLCACTIVE
License CKBACBL748BG · Registered less than 1 year
GOLDEN PLUMBING PLLCACTIVE
License GOLDEPP799MF · Registered 4 years
HARBOR PLUMBING SOUTH LLCACTIVE
License HARBOPS790MG · Registered 5 years
ISLAND PLBG & PIPE WORKS LLCACTIVE
License ISLANPP740O5 · Registered less than 1 year
PRECISION PLMBNG & BCKFLW TSTGACTIVE
License PRECIPB799O9 · Registered 4 years
R AND L PLUMBINGACTIVE
License RLPLULP769DO · Registered 2 years
ROCKY POINT PLUMBING & MAINTACTIVE
License ROCKYPP787LP · Registered 4 years
SCOTTIE'S PLMBG & REPAIR INCACTIVE
License SCOTTPR793NR · Registered 5 years
SCOTTIE'S PLUMBING LLCACTIVE
License SCOTTPL743N4 · Registered less than 1 year
THREE DRAKES MECH & PLUMBINGACTIVE
License THREEDM777BE · Registered 3 years
TUBULAR PLBG/GRN THMB GRDN PRJACTIVE
License TUBULPT791PH · Registered 4 years