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 Drains & PlumbingRE-LICENSED
Spokane, WA · License ALLDRDP920O4 · First registered 2008
- All Phase PlumbingEXPIRED
Seattle, WA · License ALLPHPP868J9 · First registered 2014
- American Plumbing LLCEXPIRED
East Wenatchee, WA · License AMERIPL861BP · First registered 2014
- AnEwhere PlumbingRE-LICENSED
Seabeck, WA · License ANEWHP*855DW · First registered 2015
Kelso, WA · License ANYTISD805P8 · First registered 2020
Pompano Beach, FL · License AQUATEI846KZ · First registered 2016
- Ark PlumbingEXPIRED
Raymond, WA · License ARKPLP*893LF · First registered 2011
- Artisan Plumbing LLCRE-LICENSED
Enumclaw, WA · License ARTISPL892JM · First registered 2011
- Atomic Plumbing and MechanicalRE-LICENSED
West Richland, WA · License ATOMIPM832BL · First registered 2017
- B & B Pump Service IncEXPIRED
Deer Park, WA · License BBPUMBP790OB · First registered 2021
- B & J PLUMBING INCEXPIRED
Seattle, WA · License BJPLUJP786QQ · First registered 2022
- B & J PLUMBING INCEXPIRED
Seattle, WA · License BJPLUJP845NZ · First registered 2016
- B & L PLUMBING SERVICEEXPIRED
Edmonds, WA · License BLPLUS*097P2 · First registered 1991
- B & N PLUMBING INCOUT OF BUSINESS
Ferndale, WA · License BNPLUNP791NP · First registered 2021
- B & R PLUMBING INCEXPIRED
Spanaway, WA · License BRPLURP793MF · First registered 2021
- B & R PLUMBING SERVICEOUT OF BUSINESS
Spanaway, WA · License BRPLURP794MG · First registered 2021
- B & T PLUMBING & MECHANICALEXPIRED
Kennewick, WA · License BTPLUTP835LK · First registered 2017
- B A D INCEXPIRED
Shoreline, WA · License BDINCDI902PQ · First registered 2010
- B P Plumbing and MechanicalRE-LICENSED
Olympia, WA · License BPPLUPP919OB · First registered 2009
- B P SERVICESRE-LICENSED
Edgewood, WA · License BPSERPS814JH · First registered 2019
- B R PLUMBINGEXPIRED
Battle Ground, WA · License BRPLURP906RT · First registered 2010
- B&B PLUMBING LLCEXPIRED
Olympia, WA · License BBPLUPL851N5 · First registered 2015
- B&C WELL DRLNG & PUMP SRVS INCSUSPENDED
Bellingham, WA · License BCWELWD789JH · First registered 2023
- B&D PLUMBING LLCEXPIRED
Lake Stevens, WA · License BDPLUPL772DM · First registered 2023
- B&G PLUMBING LLCEXPIRED
Bremerton, WA · License BGPLUPL800ND · First registered 2020
- B&J Drilling Co. LLCEXPIRED
Enumclaw, WA · License BJDRIDC781OB · First registered 2022
- B&L PLUMBING LLCOUT OF BUSINESS
Everett, WA · License BLPLUPL767D9 · First registered 2024
- B&M PLUMBING & HEATING INCEXPIRED
Riverton, UT · License BMPLUPH846OZ · First registered 2016
- B&T PLUMBING & MECHANICALSUSPENDED
Kennewick, WA · License BTPLUPM781QD · First registered 2022
- B-LINE PLUMBING LLCRE-LICENSED
Tenino, WA · License BLINEPL870NB · First registered 2013
- B/C WELL DRLNG & PUMP SRVS INCSUPERCEDED
Bellingham, WA · License BCWELWD792OA · First registered 2021
- BACKFLOW JOHNNYRE-LICENSED
Colbert, WA · License BACKFJ*878D6 · First registered 2013
- BACKFLOW TEST & REPAIROUT OF BUSINESS
Marysville, WA · License BACKFTR799O9 · First registered 2021
- BACKFLOW TEST SOLUTIONSEXPIRED
East Wenatchee, WA · License BACKFTS813D1 · First registered 2019
Lake Stevens, WA · License BACKFTS893MR · First registered 2011
Lake Stevens, WA · License BACKFTS785MJ · First registered 2022
- BACKFLOWS NORTHWEST INCSUSPENDED
Bellevue, WA · License BACKFNI792QW · First registered 2022
- BACKFLOWS ONLY LLCEXPIRED
Tacoma, WA · License BACKFOL882QA · First registered 2012
- BADGER CREEK PLUMBING COEXPIRED
Centralia, WA · License BADGECP835M7 · First registered 2017
- BAINBRIDGE ISLAND PLUMBING INCRE-LICENSED
Bainbridge Island, WA · License BAINBIP868DR · First registered 2014
- BALD HILLS PLUMBING LLCEXPIRED
Yelm, WA · License BALDHHP796RW · First registered 2021
- BALD HILLS PLUMBING LLCOUT OF BUSINESS
Yelm, WA · License BALDHHP901PH · First registered 2010
- BANGHART PLUMBING LLCRE-LICENSED
Manson, WA · License BANGHPL853O9 · First registered 2015
- BANNER BAY PLUMBINGEXPIRED
Olalla, WA · License BANNEBP815KC · First registered 2019
- BARCE PLUMBING LLCRE-LICENSED
Woodinville, WA · License BARCEPL805BG · First registered 2020
- BARKER DRILLINGEXPIRED
Mount Vernon, WA · License BARKED*784CG · First registered 2022
- BARKER PLUMBING LLCEXPIRED
Tacoma, WA · License BARKEPL761OZ · First registered 2024
- BARKLEY PLUMBINGEXPIRED
Bellingham, WA · License BARKLP*793MA · First registered 2021
- BARKLEY PLUMBINGRE-LICENSED
Bellingham, WA · License BARKLP*815JR · First registered 2019
- BARRON & SONS LLCSUSPENDED
Spokane, WA · License BARROSL755OE · First registered 2025