Plumbing contractors in Kennewick, WA

26 active plumbing contractors are registered with Washington L&I at a Kennewick, WA address. 54 registrations are on record in all, including expired and other statuses.

By the numbers

Active registrations: 26
Registrations on record, all statuses: 54
Registered in the last 12 months: 1
Median years registered, active: 4
Suspension on record: 3
Complaint records matched: 0

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

CULLIGANRegistered since December 1, 1993
PLUMB COUNTRYRegistered since July 12, 2021
RIGGLE PLUMBING INCORPORATEDRegistered since July 28, 2021
BNB MECHANICAL LLCRegistered since July 29, 2021
APOLLO MECHANICAL CONTRACTORSRegistered since August 6, 2021

Recently registered

CLEAN IMAGE LLCRegistered on August 31, 2026
ZPLUMBERZ OF KENNEWICKRegistered on August 8, 2025
RT PLUMBING LLCRegistered on August 4, 2025
IV RIVERS INCRegistered on October 15, 2024
SOFT WATER SPECIALISTS LLCRegistered on August 22, 2024

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

26 active registrations

Businesses by registered name and license number. Show all 54 registrations on record, including expired.

1 TOM PLUMBERACTIVE
License 1TOMPTP773O8 · Registered 2 years
ADVANCED PLUMBING & RMDL LLCACTIVE
License ADVANPR791OP · Registered 5 years
APOLLO MECHANICAL CONTRACTORSACTIVE
License APOLLMC795NR · Registered 5 years
BNB MECHANICAL LLCACTIVE
License BNBMEML792MN · Registered 5 years
C & M PLUMBINGACTIVE
License CMPLUMP788BR · Registered 4 years
CLEAN IMAGE LLCACTIVE
License CLEANIL741NU · Registered less than 1 year
COFFEY REFRIGERATIONACTIVE
License COFFER*789DA · Registered 3 years
COLUMBIA BASIN PLUMBING LLCACTIVE
License COLUMBP799MF · Registered 5 years
COLUMBIA RIVER PLBG & MECH LLCACTIVE
License COLUMRP796PJ · Registered 4 years
CULLIGANACTIVE
License CULLI**077RA · Registered 32 years
DEPENDABLE PLBG/WTR CNDTNG INCACTIVE
License DEPENPC795OP · Registered 5 years
GTC CONSTRUCTION LLCACTIVE
License GTCCOCL786M9 · Registered 4 years
IV RIVERS INCACTIVE
License IVRIVRI766PN · Registered 1 year
KOHLER PLUMBING LLCACTIVE
License KOHLEPL780O3 · Registered 3 years
MIKE'S PLUMBING SERVICE, LLCACTIVE
License MIKESPS784BQ · Registered 4 years
MULLINS ENTERPRISES LLCACTIVE
License MULLIEL784BQ · Registered 4 years
PLUMB COUNTRYACTIVE
License PLUMBC*793MB · Registered 5 years
RIGGLE PLUMBING INCORPORATEDACTIVE
License RIGGLPI795MK · Registered 5 years
RT PLUMBING LLCACTIVE
License RTPLUPL759M5 · Registered 1 year
SILVERLINE PLUMBING SERVICESACTIVE
License SILVEPS793NR · Registered 5 years
SOFT WATER SPECIALISTS LLCACTIVE
License SOFTWWS763N2 · Registered 2 years
THREE RIVERS MECHANICAL INCACTIVE
License THREERM781BL · Registered 4 years
TRI-CITIES WATER STORE INCACTIVE
License TRICIWS771RE · Registered 2 years
TRI-CITY PLUMBING & MECH INCACTIVE
License TRICIPM790NG · Registered 5 years
TRITAN PLUMBING INCACTIVE
License TRITAPI796OP · Registered 4 years
ZPLUMBERZ OF KENNEWICKACTIVE
License ZPLUMK*754NH · Registered 1 year