Plumbing contractors in Washington
2,263 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 2,263 active registrations.
- SOUND PLUMBING & DRAIN INCSUSPENDED
Vancouver, WA · License SOUNDPD751C8 · First registered 2025
- SOUND PLUMBING & MECHANICALEXPIRED
Shelton, WA · License SOUNDPM066OM · First registered 1994
- SOUND PLUMBING AND HEATING INCRE-LICENSED
Bothell, WA · License SOUNDPH862NR · First registered 2014
- SOUND PLUMBING LLCSUSPENDED
Silverdale, WA · License SOUNDPL785BJ · First registered 2022
- SOUND PLUMBING LLCEXPIRED
Silverdale, WA · License SOUNDPL951P5 · First registered 2005
- SOUND ROOTER & PLUMBING LLCRE-LICENSED
Lacey, WA · License SOUNDRP832O2 · First registered 2017
- SOUND WATERWORKS LLCRE-LICENSED
Everett, WA · License SOUNDWL870C8 · First registered 2013
- SOUNDER PLUMBING LLCEXPIRED
Seattle, WA · License SOUNDPL942PE · First registered 2006
- SOUTH SOUND PLUMBING LLCEXPIRED
Spanaway, WA · License SOUTHSP851RJ · First registered 2015
- SOUTHERLANDS CSMRDLG/PLBSRVLLCSUSPENDED
Battle Ground, WA · License SOUTHC*7527N · First registered 2025
- SOUTHSIDE PLUMBING LLCEXPIRED
South Cle Elum, WA · License SOUTHPL764CG · First registered 2024
- SPADE PLUMBING LLCEXPIRED
Federal Way, WA · License SPADEPL791PA · First registered 2022
- SPADE PLUMBING LLCRE-LICENSED
Federal Way, WA · License SPADEPL886O7 · First registered 2012
- SPECIALTY CONTRACTORS NW LLCEXPIRED
Portland, OR · License SPECICN793OZ · First registered 2021
- SPECIALTY CONTRACTORS NW LLCRE-LICENSED
Portland, OR · License SPECICN812JK · First registered 2019
- SPECIALTY MECHANICAL SERVICESSUSPENDED
Everett, WA · License SPECIMS777DG · First registered 2023
- SPECIALTY PLUMBING & HTG INCRE-LICENSED
Mountlake Terrace, WA · License SPECIPH877L4 · First registered 2013
- SPENCER'S EASTSIDE PLBG LLCEXPIRED
Issaquah, WA · License SPENCEP830QT · First registered 2017
- SPLASH PLUMBING LLCEXPIRED
Seattle, WA · License SPLASPL913BK · First registered 2009
- SPOKANE DRAIN & ROOTER LLCEXPIRED
Spokane, WA · License SPOKADR772MJ · First registered 2023
Spokane, WA · License SPOKAPH787KP · First registered 2022
- SPOKANE WATER HEATER LLCSUSPENDED
Spokane Valley, WA · License SPOKAWH756KH · First registered 2025
- SPOONER CONSTRUCTION INCEXPIRED
Missoula, MT · License SPOONCI812CO · First registered 2019
- SPOT PLUMBING LLCOUT OF BUSINESS
Kenmore, WA · License SPOTPPL820LQ · First registered 2018
- SPRINGER PLUMBING LLCRE-LICENSED
Tenino, WA · License SPRINPL032C5 · First registered 1997
- SPRINGER PLUMBING LLCOUT OF BUSINESS
Tumwater, WA · License SPRINPL787PL · First registered 2022
- SPRINGER PLUMBING LLCOUT OF BUSINESS
Tenino, WA · License SPRINPL791MG · First registered 2021
- SPRINGHILL GENERAL CONST LLCEXPIRED
Hermiston, OR · License SPRINGC765DD · First registered 2024
- STACKHOUSE PLUMBINGEXPIRED
Chelan, WA · License STACKP*781OB · First registered 2022
- STACKHOUSE PLUMBINGRE-LICENSED
Wenatchee, WA · License STACKP*825BJ · First registered 2018
Tacoma, WA · License STADIPM789BQ · First registered 2022
- STANTON PLUMBING INCRE-LICENSED
North Bend, WA · License STANTPI010D5 · First registered 1999
- STARTIN'S REPAIR INCSUPERCEDED
Lacrosse, WA · License STARTRI793OP · First registered 2021
- STATE PLUMBING LLCEXPIRED
Milton, WA · License STATEPL847D3 · First registered 2016
- STATE PLUMBING UTILITIES LLCSUSPENDED
Federal Way, WA · License STATEPU762B2 · First registered 2024
- STATELINE PLUMBINGRE-LICENSED
Newport, WA · License STATEP*911MO · First registered 2009
- STEELHEAD PLUMBING LLCEXPIRED
Tacoma, WA · License STEELPL781D4 · First registered 2022
- STELLAR PLUMBINGEXPIRED
Bellevue, WA · License STELLP*015PD · First registered 1999
Puyallup, WA · License STERNRP783DB · First registered 2022
- STERNOD ROOTER & PLMBG SVC INCRE-LICENSED
Puyallup, WA · License STERNRP946JS · First registered 2006
- STEVE ANDERSON PLUMBING INCEXPIRED
Port Angeles, WA · License STEVEAP876QN · First registered 2013
- STEVE FRANICH PLUMBING LTDRE-LICENSED
Tacoma, WA · License STEVEFP945BK · First registered 2006
- STEVE ROBERTSON PLUMBINGEXPIRED
Bow, WA · License STEVERP055KC · First registered 1995
- STEVE'S FAIRWAY PLUMBING INCEXPIRED
Tukwila, WA · License STEVEFP841CJ · First registered 2016
- STEVE'S PLUMBING LLCRE-LICENSED
Lynnwood, WA · License STEVEPI004OZ · First registered 2000
Clinton, WA · License STEVESP921LK · First registered 2008
- STEVENS PLUMBINGRE-LICENSED
Colville, WA · License STEVEP*956LM · First registered 2005
- STILL PLUMBING AND MECH LLCEXPIRED
Milton Freewater, OR · License STILLPM842RW · First registered 2016
- STILLWATER PLUMBING LLCEXPIRED
Carnation, WA · License STILLPL763LC · First registered 2024
- STILLY VALLEY PLUMBING LLCSUSPENDED
Arlington, WA · License STILLVP798OB · First registered 2021