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.
- PATRIOT PLBG HTG & COOLING INCOUT OF BUSINESS
Wenatchee, WA · License PATRIPH790MB · First registered 2021
- PATRIOT PLUMBING HTG & CLGSUSPENDED
Wenatchee, WA · License PATRIPH753OJ · First registered 2025
- PATRIOT PLUMBING HTG & COOLINGSUPERCEDED
Wenatchee, WA · License PATRIPH762LO · First registered 2024
- PATRIOT PLUMBING HTG & COOLINGSUSPENDED
Wenatchee, WA · License PATRIPH765QM · First registered 2025
- PATRIOT PLUMBING HTG & COOLINGSUPERCEDED
Wenatchee, WA · License PATRIPH7834O · First registered 2022
- PCAM SERVICES INCOUT OF BUSINESS
Kirkland, WA · License PCAMSSI770JJ · First registered 2023
- PEAK PLUMBING LLCSUSPENDED
Liberty Lake, WA · License PEAKPPL780KP · First registered 2022
- PEAK PLUMBING LLCEXPIRED
Liberty Lake, WA · License PEAKPPL921CN · First registered 2008
- PEASE PIPING INCEXPIRED
Tacoma, WA · License PEASEPI772LG · First registered 2023
- PELTRAM PLUMBING INCEXPIRED
Auburn, WA · License PELTRPI075DZ · First registered 1993
- PELTRAM PLUMBING LLCRE-LICENSED
Auburn, WA · License PELTRPL821MK · First registered 2018
- PELTRAM SERVICES OF WA LLCSUPERCEDED
Auburn, WA · License PELTRSW784JR · First registered 2022
- PENDLETON PLUMBING LLCEXPIRED
Pendleton, OR · License PENDLPL843KJ · First registered 2016
- PENINSULA PLUMBING COEXPIRED
Portland, OR · License PENINP*203BG · First registered 1980
- PERKINS PLUMBING SERVICES LLCRE-LICENSED
Poulsbo, WA · License PERKIPS811C8 · First registered 2019
- PERKS PREFERRED PLUMBING LLCEXPIRED
Kent, WA · License PERKSPP864M9 · First registered 2014
Enumclaw, WA · License PERSOLE121QW · First registered 1988
- PETE PETERSON PLUMBING INCRE-LICENSED
Okanogan, WA · License PETEPPP946CG · First registered 2006
- PETERS PLUMBING INCEXPIRED
Waterville, WA · License PETERPI875DR · First registered 2013
- PETERSON PUMP SERVICE LLCSUPERCEDED
Woodland, WA · License PETERPS763CL · First registered 2024
- PETES PLUMBING LLCSUSPENDED
Darrington, WA · License PETESPL758OB · First registered 2025
- PHAN PLUMBING SERVICES LLCEXPIRED
Kent, WA · License PHANPPS828NF · First registered 2018
- PICHE BACKFLOW TESTINGRE-LICENSED
West Richland, WA · License PICHEBT932JO · First registered 2007
- PICKARD & SONS PLUMBING LLCRE-LICENSED
Ferndale, WA · License PICKASP905LS · First registered 2010
- PICT PLUMBINGRE-LICENSED
Vashon, WA · License PICTPP*820P5 · First registered 2018
- PICT PLUMBING INCEXPIRED
Vashon, WA · License PICTPPI817B9 · First registered 2019
- PIED PIPER INCEXPIRED
Wauna, WA · License PIEDPI*156KA · First registered 1985
- PINCHIFF MECHANICAL LLCEXPIRED
Tukwila, WA · License PINCHML792NQ · First registered 2021
- PINNACLE ADVANCE SOLUTIONS LLCSUSPENDED
Marysville, WA · License PINNAAS755K9 · First registered 2025
- PINNACLE PLBG SOLUTIONS LLCEXPIRED
Wenatchee, WA · License PINNAPS795RH · First registered 2021
- PINNACLE PLUMBING & HEATING INRE-LICENSED
Selah, WA · License PINNAPH960CF · First registered 2004
- PINNACLE PLUMBING INC OF OREXPIRED
Gresham, OR · License PINNAPI773CN · First registered 2023
- PIONEER PLUMBING INCOUT OF BUSINESS
Kennewick, WA · License PIONEPI846RA · First registered 2016
- PIONEER PLUMBING SERVICES LLCSUSPENDED
The Dalles, OR · License PIONEPS783RO · First registered 2022
- PIPE DREAM PLUMBINGRE-LICENSED
Kalama, WA · License PIPEDDP912KN · First registered 2009
- PIPE IT PLUMBING LLCEXPIRED
Boring, OR · License PIPEIIP875MC · First registered 2013
- PIPE LINE PLUMBINGSUSPENDED
Bonney Lake, WA · License PIPELLP784NJ · First registered 2022
- PIPE LINE PLUMBINGRE-LICENSED
Bonney Lake, WA · License PIPELLP900MO · First registered 2010
- PIPE LINE PLUMBING INCEXPIRED
Spokane, WA · License PIPELLP836R1 · First registered 2017
- PIPE MECHANIC PLUMBINGOUT OF BUSINESS
Tenino, WA · License PIPEMMP774BR · First registered 2023
- PIPE RIGHT PLBG & SEWER LLCEXPIRED
Bellevue, WA · License PIPERRP811JB · First registered 2019
- PIPE RUNNER LLCEXPIRED
Kent, WA · License PIPERRL768KH · First registered 2024
- PIPE-RITE PLUMBING INCRE-LICENSED
Sequim, WA · License PIPERPI988OZ · First registered 2002
Houston, TX · License PIPELPP811RB · First registered 2019
- PIPELINE PLUMBINGEXPIRED
Lake Oswego, OR · License PIPELP*798R3 · First registered 2021
- PIPELINE PLUMBINGEXPIRED
Lake Oswego, OR · License PIPELP*861DR · First registered 2014
- PIPELINE VIDEO & CLEANINGEXPIRED
Vancouver, WA · License PIPELVC917BK · First registered 2009
- PIPEMASTERS PLUMBINGSUSPENDED
Kent, WA · License PIPEMP*751CR · First registered 2025
- PIPEOLOGY PLUMBING LLCEXPIRED
Wenatchee, WA · License PIPEOPL791NB · First registered 2021
- PIPEOLOGY PLUMBING LLCOUT OF BUSINESS
Wenatchee, WA · License PIPEOPL852CF · First registered 2015