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.
- STRAIGHT ARROW HOMES LLCEXPIRED
Bellevue, WA · License STRAIAH790OA · First registered 2021
- STREAM LINE PLUMBINGEXPIRED
Anacortes, WA · License STREALP798PE · First registered 2021
- STREAMLINE PLUMBINGEXPIRED
Vancouver, WA · License STREAP*891JD · First registered 2011
- STREAMSIDE PLUMBING LLCEXPIRED
Enumclaw, WA · License STREAPL821RM · First registered 2018
- SULLIVAN PLUMBING INCRE-LICENSED
Ferndale, WA · License SULLIPI132RO · First registered 1987
- SULLIVAN SERVICES INCEXPIRED
Bellingham, WA · License SULLISI794NL · First registered 2021
- SUMMERS PLUMBING LLCSUSPENDED
Mead, WA · License SUMMEPL775LZ · First registered 2023
- SUMMERS PLUMBING NW LLCSUSPENDED
Toutle, WA · License SUMMEPN795PR · First registered 2021
- SUMMERS PLUMBING NW LLCRE-LICENSED
Toutle, WA · License SUMMEPN815KC · First registered 2019
- SUMMERSON PLUMBING INCRE-LICENSED
Vancouver, WA · License SUMMEPI932P6 · First registered 2007
- SUMMIT BACKFLOW SERVICES INCSUSPENDED
Tacoma, WA · License SUMMIBS776C2 · First registered 2023
- SUMMIT MECHANICALRE-LICENSED
Maple Valley, WA · License SUMMIM*902RT · First registered 2010
- SUN PLUMBING LLCEXPIRED
Southworth, WA · License SUNPLPL849B2 · First registered 2016
- SUNCREST MECHANICAL LLCEXPIRED
Post Falls, ID · License SUNCRML847BE · First registered 2016
- SUNSET DAY & NIGHT PLUMBINGOUT OF BUSINESS
Bellevue, WA · License SUNSEDN831RQ · First registered 2017
- SUPERIOR CHOICE PLUMBING LLCEXPIRED
Vancouver, WA · License SUPERCP816B2 · First registered 2019
- SUPERIOR CUSTOM PLUMBING LLCEXPIRED
Marysville, WA · License SUPERCP837BJ · First registered 2017
- SUPERIOR PLUMBING AND HTG INCRE-LICENSED
Burien, WA · License SUPERPH877MS · First registered 2013
- SUPERIOR QUALITY HOMES LLCSUSPENDED
Chattaroy, WA · License SUPERQH773NZ · First registered 2023
- SUPREME PLUMBING COMPANY LLCEXPIRED
Kingston, WA · License SUPREPC873KL · First registered 2013
- SUPREME TIER PLUMBING LLCSUSPENDED
Federal Way, WA · License SUPRETP756NH · First registered 2025
- SUR VERRE LLCRE-LICENSED
University Place, WA · License SURVEVL815DJ · First registered 2019
- SW Morgan Plumbing LLCEXPIRED
Tacoma, WA · License SWMORMP767DF · First registered 2024
Kirkland, WA · License SW1PLPM878D7 · First registered 2013
- SWANSON MECHANICAL INCEXPIRED
Arlington, WA · License SWANSMI941L8 · First registered 2006
- SWIFT PLUMBING INCRE-LICENSED
Poulsbo, WA · License SWIFTPI091QE · First registered 1991
- SYSTAD PLUMBING LLCEXPIRED
Bothell, WA · License SYSTAPL779O7 · First registered 2023
- SageWaterINACTIVE
Alexandria, VA · License SAGEW**796O1 · First registered 2021
- Scott's PlumbingEXPIRED
Hayden, ID · License SCOTTP*853OH · First registered 2015
- Shipleys PlumbingEXPIRED
Selah, WA · License SHIPLP*841C4 · First registered 2016
- Specialty Pump & Plumbing IncSUPERCEDED
Snohomish, WA · License SPECIPP787P7 · First registered 2022
Seattle, WA · License STARPPM791O8 · First registered 2021
- Star Plumbing & Mechanical LLCRE-LICENSED
Seattle, WA · License STARPPM831O5 · First registered 2017
- Straightline Plumbing LLCEXPIRED
Fall City, WA · License STRAIPL913MT · First registered 2009
- Sy's PlumbingEXPIRED
Snohomish, WA · License SYSPLP*867BS · First registered 2014
- Synergy PlumbingEXPIRED
Poulsbo, WA · License SYNERP*913RH · First registered 2009
- T & C PLUMBINGRE-LICENSED
Spokane, WA · License TCPLUCP958C3 · First registered 2005
- T & J'S PLUMBING CONNECTN LLCRE-LICENSED
Tacoma, WA · License TJSPLJP895LA · First registered 2011
- T & S PLUMBING INCEXPIRED
Vancouver, WA · License TSPLUI*981LF · First registered 2002
- T A C C PLUMBING LLCEXPIRED
Vancouver, WA · License TCCPLCC793MF · First registered 2021
- T A C C PLUMBING LLCRE-LICENSED
Vancouver, WA · License TCCPLCC911DB · First registered 2009
- T A PLUMBING INCSUSPENDED
North Bend, WA · License TPLUMPI794O7 · First registered 2021
- T REARDON PLUMBING INCEXPIRED
Ocean Park, WA · License TREARRP908PL · First registered 2010
- T V K PLUMBING INCEXPIRED
Lynden, WA · License TVKPLVK944CA · First registered 2006
- T&J PLUMBING LLCEXPIRED
Hauser, ID · License TJPLUPL777M5 · First registered 2023
- T'S PLUMBINGEXPIRED
Sequim, WA · License TSPLUP*782QG · First registered 2022
Spokane, WA · License TACTIPP840R2 · First registered 2016
- TAFT PLUMBING & SEPTIC INCSUSPENDED
Ocean Park, WA · License TAFTPPS786L1 · First registered 2022
- TAQUERIA EL RINCONSITOEXPIRED
Fife, WA · License TAQUEER765ME · First registered 2024
- TAS MECHANICAL/GREEN PLBG LLCSUSPENDED
Spokane, WA · License TASMEMP772C7 · First registered 2023