Plumbing contractors in Washington
2,266 active plumbing contractors are registered with Washington L&I. 4,450 registrations are on record in all, including expired and other statuses.
200 of the active plumbing contractors registered in Washington are based in other states.
All 4,450 registrations on record
Businesses by registered name and license number. Show only the 2,266 active registrations.
- ALL WATER SERVICES LLCEXPIRED
Everett, WA · License ALLWAWS809OT · First registered 2020
- ALL WAYS AWAY PLUMBING LLCEXPIRED
Rathdrum, ID · License ALLWAWA808DC · First registered 2020
- ALLEGIANCE PLUMBING INC LLCEXPIRED
Puyallup, WA · License ALLEGPI812JE · First registered 2019
- ALLEN PLUMBINGSUSPENDED
Snohomish, WA · License ALLENP*773DP · First registered 2023
- ALLEN PLUMBINGEXPIRED
Snohomish, WA · License ALLENP*930B4 · First registered 2007
- ALLEY PLUMBING COMPANYRE-LICENSED
Enumclaw, WA · License ALLEYPC948KZ · First registered 2006
- ALLFIX ELECTRIC & PLUMBING LLCSUSPENDED
Moses Lake, WA · License ALLFIEP761P3 · First registered 2024
- ALLIANCE PUMP LLCEXPIRED
Wenatchee, WA · License ALLIAPL815L6 · First registered 2019
- ALLIED PLBG SERVCS GROUP INCEXPIRED
Centralia, WA · License ALLIEPS828KH · First registered 2018
- ALLIED PLUMBING INCEXPIRED
Centralia, WA · License ALLIEPI792QN · First registered 2021
- ALLIED PLUMBING SERVICES INCEXPIRED
Centralia, WA · License ALLIEPS798O4 · First registered 2021
- ALLRED HTG COOLING ELEC LLCEXPIRED
Auburn, WA · License ALLREHC798O4 · First registered 2022
- ALLRED'S PLBG & RADIANT INCOUT OF BUSINESS
Renton, WA · License ALLREPR793NG · First registered 2021
- ALLSTAR MECHANICAL USA LLCEXPIRED
Vancouver, BC · License ALLSTMU798NR · First registered 2021
- ALLSTAR MECHANICAL USA LLCRE-LICENSED
Vancouver, BC · License ALLSTMU831LG · First registered 2017
- ALOHA PLUMBING INCEXPIRED
Port Townsend, WA · License ALOHAPI952LW · First registered 2005
- ALOISIO PLUMBING INCEXPIRED
Tacoma, WA · License ALOISPI003KL · First registered 2000
- ALORA PLUMBING & HEATING LLCEXPIRED
Tacoma, WA · License ALORAPH805RN · First registered 2020
- ALPHA BACKFLOW & PLUMBINGRE-LICENSED
Snohomish, WA · License ALPHABP806DC · First registered 2020
- ALPHA PLUMBING LLCEXPIRED
Bothell, WA · License ALPHAPL782DG · First registered 2022
- ALPHA Y OMEGA PLUMBING LLCEXPIRED
Tacoma, WA · License ALPHAYO864L5 · First registered 2014
- ALPINE PLUMBING SERVICES INCRE-LICENSED
Stanwood, WA · License ALPINPS907J7 · First registered 2010
- ALPINE WATER HEATERSEXPIRED
North Bend, WA · License ALPINWH789B7 · First registered 2022
- ALWAYS TESTING INCEXPIRED
Mountlake Terrac, WA · License ALWAYTI950NB · First registered 2005
- AMA REPIPING LLCEXPIRED
Queen Creek, AZ · License AMARERL798MF · First registered 2021
- AMA REPIPING LLCRE-LICENSED
Queen Creek, AZ · License AMARERL812MJ · First registered 2019
- AMAZON RENOVATIONS INCEXPIRED
Kent, WA · License AMAZORI787NB · First registered 2022
- AMERI'TECH PLUMBINGEXPIRED
Seattle, WA · License AMERIP*776KA · First registered 2023
- AMERICA NW PLUMBING INCSUPERCEDED
Post Falls, ID · License AMERINP782RW · First registered 2022
- AMERICA NW PLUMBING INCRE-LICENSED
Post Falls, ID · License AMERINP942Q7 · First registered 2006
- AMERICAN CRAFTSMAN P & H LLCEXPIRED
Kent, WA · License AMERICP950DB · First registered 2005
- AMERICAN LEAK DETECTION INCRE-LICENSED
New Haven, CT · License AMERILD804L4 · First registered 2020
- AMERICAN MECHANICAL CORPRE-LICENSED
Burien, WA · License AMERIMC071BH · First registered 1993
- AMERICAN PLUMBING CONTRACTORSSUSPENDED
Lacey, WA · License AMERIPC795O1 · First registered 2022
- AMERICAN PLUMBING CONTRS INCSUSPENDED
Olympia, WA · License AMERIPC779QA · First registered 2023
- AMERICAN PLUMBING LLCEXPIRED
Wenatchee, WA · License AMERIPL770BD · First registered 2023
- AMERICAN PUMP & ELECTRIC LLCSUPERCEDED
Tumwater, WA · License AMERIPE782PQ · First registered 2022
- AMERICAN PUMP & ELECTRIC LLCSUPERCEDED
Tumwater, WA · License AMERIPE794MO · First registered 2021
- AMERICAN QUALITY PLUMBINGRE-LICENSED
Mill Creek, WA · License AMERIQP836C1 · First registered 2017
Mill Creek, WA · License AMERIQP811D9 · First registered 2019
- ANACORTES PLUMBINGEXPIRED
Oak Harbor, WA · License ANACOP*827LR · First registered 2018
- ANACORTES PLUMBINGRE-LICENSED
Oak Harbor, WA · License ANACOP*863JP · First registered 2014
- ANDERSON BROTHERS PLUMBINGEXPIRED
Snohomish, WA · License ANDERBP825OQ · First registered 2018
- ANGELES PLUMBINGEXPIRED
Port Angeles, WA · License ANGELP*781MH · First registered 2022
- ANMAC WATER TREATMENT SER INCOUT OF BUSINESS
Simi Valley, CA · License ANMACWT802Q5 · First registered 2020
- ANOTHER PLUMBER INCEXPIRED
Kent, WA · License ANOTHPI044LD · First registered 1996
- ANTHONY MYERS PLUMBINGEXPIRED
Federal Way, WA · License ANTHOMP894OZ · First registered 2011
- ANTHONY THE PLUMBER LLCEXPIRED
Tacoma, WA · License ANTHOPL782LG · First registered 2022
- ANTHONY THE PLUMBER LLCEXPIRED
Tacoma, WA · License ANTHOPL874KW · First registered 2013
- AP PLUMBING LLCRE-LICENSED
Bainbridge Islan, WA · License APPLUPL953LF · First registered 2005