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.
- METHOW PLUMBING LLCRE-LICENSED
Winthrop, WA · License METHOPL834RD · First registered 2017
- METRO PLUMBING LLCSUPERCEDED
Marysville, WA · License METROPL783C4 · First registered 2022
- MIBRE PLUMBINGEXPIRED
Camano Island, WA · License MIBREP*799MG · First registered 2021
- MIDSOUND PLUMBINGOUT OF BUSINESS
Vashon, WA · License MIDSOP*792NZ · First registered 2021
- MIKE & SONS PLUMBING LLCEXPIRED
Spokane, WA · License MIKESSP793NG · First registered 2021
- MIKE BACH DRILLING COMPANYSUPERCEDED
Ellensburg, WA · License MIKEBBD790NP · First registered 2021
- MIKE GLASER PLUMBING LLCEXPIRED
Shelton, WA · License MIKEGGP823NZ · First registered 2018
- MIKE MOORE PLUMBING REPAIR INCOUT OF BUSINESS
East Olympia, WA · License MIKEMMP792MA · First registered 2021
- MIKE'S PLUMBINGEXPIRED
Kennewick, WA · License MIKESP*791RZ · First registered 2021
- MIKE'S PLUMBINGEXPIRED
Kennewick, WA · License MIKESP*877K9 · First registered 2013
- MIKE'S PLUMBING INCEXPIRED
Lakebay, WA · License MIKESPI825C8 · First registered 2018
- MIKE'S PLUMBING REPAIR SRV LLCRE-LICENSED
Preston, WA · License MIKESPR822NT · First registered 2018
- MIKES PLUMBING TACOMASUPERCEDED
Roy, WA · License MIKESPT781RG · First registered 2022
- MILL CREEK PLUMBING LLCEXPIRED
The Dalles, OR · License MILLCCP771RH · First registered 2024
- MILL CREEK PLUMBING LLCEXPIRED
The Dalles, OR · License MILLCCP804O8 · First registered 2020
- MILLER HOME MAINT & PLUMBINGEXPIRED
Maple Valley, WA · License MILLEHM782L4 · First registered 2022
- MILLER PLUMBING LLCEXPIRED
Tacoma, WA · License MILLEPL786N2 · First registered 2022
- MILLER PLUMBING LLCRE-LICENSED
Tacoma, WA · License MILLEPL885KA · First registered 2012
- MILLER'S PLBG & DRAIN SERV LLCSUSPENDED
Roy, WA · License MILLEPD794LQ · First registered 2021
- MILLER'S PLUMBINGRE-LICENSED
Spokane, WA · License MILLEP*846O1 · First registered 2016
- MINNIS CUSTOM PLUMBING LLCRE-LICENSED
Mountlake Terrac, WA · License MINNICP952NC · First registered 2005
- MIP PLUMBING LLCEXPIRED
Bonney Lake, WA · License MIPPLPL824OD · First registered 2018
- MISSION PLUMBING LLCEXPIRED
Bremerton, WA · License MISSIPL784NH · First registered 2022
- MITCHELL PLUMBINGEXPIRED
Hoodsport, WA · License MITCHP*966DN · First registered 2004
- MIX PLUMBINGEXPIRED
Kennewick, WA · License MIXPL**977LK · First registered 2003
- MJ PLUMBINGEXPIRED
Lacey, WA · License MJPLUP*832QG · First registered 2017
- MJ'S PLUMBINGEXPIRED
La Center, WA · License MJSPLP*784L4 · First registered 2022
- MJT PLUMBING, LLCSUSPENDED
Woodland, WA · License MJTPLPL772BK · First registered 2023
- MJTK BACKFLOW TESTINGEXPIRED
Mercer Island, WA · License MJTKBBT848JF · First registered 2016
- ML PLUMBINGEXPIRED
Sumner, WA · License MLPLUP*779BR · First registered 2023
- MMCS LLCSUSPENDED
Redmond, WA · License MMCSLL*794OP · First registered 2021
- MOBILE HOME SPECIALIST LLCSUSPENDED
Goldendale, WA · License MOBILHS799NW · First registered 2021
- MODERN PLUMBING COEXPIRED
Tualatin, OR · License MODERPC071J6 · First registered 1993
- MOEN PLUMBING LLCRE-LICENSED
Snohomish, WA · License MOENPPL852MH · First registered 2015
- MOERKE & SONS PUMP & DRLNG INCOUT OF BUSINESS
Chehalis, WA · License MOERKSP781DC · First registered 2022
- MOERKE & SONS PUMP & DRLNG INCSUPERCEDED
Chehalis, WA · License MOERKSP795R1 · First registered 2021
- MONARCH PLUMBINGRE-LICENSED
Puyallup, WA · License MONARP*810B5 · First registered 2019
- MOORE PLUMBING & MECH LLCEXPIRED
Bothell, WA · License MOOREPM824RM · First registered 2018
- MOORE PLUMBING & MECHANICALEXPIRED
Bothell, WA · License MOOREPM820ML · First registered 2018
- MOORE PLUMBING COMPANYEXPIRED
Hayden, ID · License MOOREPC919MP · First registered 2009
- MORAN PLUMBINGEXPIRED
Chehalis, WA · License MORANP*831OO · First registered 2017
- MORNING STAR PLUMBING LLCSUSPENDED
Vancouver, WA · License MORNISP763P5 · First registered 2024
- MORRIS PLUMBING & HEATINGSUSPENDED
Eastsound, WA · License MORRIPH792MF · First registered 2021
- MORRISON PLUMBINGEXPIRED
Federal Way, WA · License MORRIP*894LO · First registered 2011
- MOSS BAY PLUMBING LIMITEDEXPIRED
Renton, WA · License MOSSBPL000OO · First registered 2000
- MOUNTAIN PLUMBING LLCEXPIRED
Orting, WA · License MOUNTPL792NR · First registered 2021
- MOUNTAIN PUMPS & PLUMBING LLCOUT OF BUSINESS
Sequim, WA · License MOUNTPP784O1 · First registered 2022
- MOUNTAIN VIEW PLUMBING LLCEXPIRED
Spanaway, WA · License MOUNTVP814O7 · First registered 2019
- MOUNTAINMAN PLUMBINGEXPIRED
Colville, WA · License MOUNTP*867BU · First registered 2014
- MPS PLUMBINGRE-LICENSED
Cornelius, OR · License MPSPLP*853DF · First registered 2015