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.
- ECO ELECTRIC & PLUMBINGSUPERCEDED
Mercer Island, WA · License ECOELEP768BT · First registered 2024
- ECO ELECTRIC & PLUMBINGSUPERCEDED
Mercer Island, WA · License ECOELEP780NW · First registered 2022
- ECONOMYWISE PLUMBING LLCEXPIRED
Seattle, WA · License ECONOPL835D9 · First registered 2017
- ED SEWER & PLUMBINGRE-LICENSED
Tacoma, WA · License EDSEWP*963CQ · First registered 2004
- ED'S BA PLUMBINGEXPIRED
Woodinville, WA · License EDSBABP949KR · First registered 2006
- ED'S PLUMBING LLCEXPIRED
Walla Walla, WA · License EDSPLPL804N4 · First registered 2020
- ED'S PLUMBING SOUTHEXPIRED
Seattle, WA · License EDSPLPS909NJ · First registered 2010
- EDGE PLUMBING LLCRE-LICENSED
Spokane, WA · License EDGEPPL865BC · First registered 2014
- EDL PLUMBING LLCRE-LICENSED
Snohomish, WA · License EDLPLPL849ML · First registered 2016
- EDMUND FOXEXPIRED
Bremerton, WA · License EDMUNF*771CM · First registered 2023
- EDWIN PLUMBING LLCEXPIRED
Arlington, WA · License EDWINPL813KG · First registered 2019
- EFFECTIVE PLUMBING LLCRE-LICENSED
Lynnwood, WA · License EFFECPL819K1 · First registered 2019
- EINSTEIN PROSEXPIRED
Bend, OR · License EINSTP*790KE · First registered 2021
- EK & HARVEY PLUMBINGEXPIRED
Walla Walla, WA · License EKHARHP835BD · First registered 2017
- ELEMENT PLUMBINGEXPIRED
East Wenatchee, WA · License ELEMEP*763JD · First registered 2024
- ELEMENT PLUMBING LLCEXPIRED
Kirkland, WA · License ELEMEPL844QD · First registered 2016
- ELEVATED PLUMBING DD LLCEXPIRED
Coeur D Alene, ID · License ELEVAPD773KN · First registered 2023
- ELEVATED PLUMBING INCEXPIRED
Kirkland, WA · License ELEVAPI784NC · First registered 2022
- ELITE CUSTOM PLUMBING INCEXPIRED
Greenacres, WA · License ELITECP826L8 · First registered 2018
- EMERALD CITY ENERGY, INC.SUPERCEDED
Seattle, WA · License EMERACE788BR · First registered 2022
- EMERALD CITY PLUMBING INCEXPIRED
Bothell, WA · License EMERACP792RP · First registered 2022
- EMERALD PLUMBINGRE-LICENSED
Vancouver, WA · License EMERAP*857OA · First registered 2015
Bellingham, WA · License EMMERPC841D2 · First registered 2016
- EMPIRE PLUMBING LLCEXPIRED
Nine Mile Falls, WA · License EMPIRPL818PB · First registered 2019
- ENZENSPERGER PLUMBINGEXPIRED
Oroville, WA · License ENZENP*807D3 · First registered 2020
- EPHRATA PLUMBINGEXPIRED
Soap Lake, WA · License EPHRAP*932BW · First registered 2007
- EPIC PLUMBING LLCEXPIRED
Everett, WA · License EPICPPL801NG · First registered 2020
- ERIC'S PLUMBINGEXPIRED
Chelan, WA · License ERICSP*055LL · First registered 1995
- ERICKSONS HOME TOWN PLUMBINGEXPIRED
Camano Island, WA · License ERICKHT771OQ · First registered 2023
- ESPEXPIRED
Seattle, WA · License ESP****766NK · First registered 2024
- ESSENTIAL PLUMBING LLCEXPIRED
University Place, WA · License ESSENPL763NB · First registered 2024
- EVANS PLUMBINGRE-LICENSED
Tieton, WA · License EVANSP*826L2 · First registered 2018
- EVANS PLUMBING LLCEXPIRED
Yakima, WA · License EVANSPL789NJ · First registered 2022
- EVERFLOW PLUMBING PNWEXPIRED
Longview, WA · License EVERFPP761T1 · First registered 2024
- EVERGREEN PLUMBING AUTH LLCSUSPENDED
Puyallup, WA · License EVERGPA753DF · First registered 2025
- EVERGREEN PLUMBING LLCRE-LICENSED
Pasco, WA · License EVERGPL018J9 · First registered 1999
- EVERGREEN WATER TREATMENT NWEXPIRED
Poulsbo, WA · License EVERGWT762CO · First registered 2024
- EXCEL PLUMBING & HEATINGEXPIRED
Sequim, WA · License EXCELPH096RU · First registered 1991
- EXCELL PLUMBING INCRE-LICENSED
Seattle, WA · License EXCELPI033LW · First registered 1997
- EXPERT PLUMBING/DRAIN CLNG INCRE-LICENSED
Spokane, WA · License EXPERPC866LW · First registered 2014
- EXPRESS 24 HR PLBG & DRAIN LLCRE-LICENSED
Burbank, WA · License EXPRE2H836L7 · First registered 2017
- EXPRESS PLUMBING LLCEXPIRED
Bellevue, WA · License EXPREPL833CH · First registered 2017
- EXPRESS WATER HEATER INCRE-LICENSED
Vancouver, WA · License EXPREWH011NT · First registered 1999
- EXPRESS WATER HEATER INCOUT OF BUSINESS
Vancouver, WA · License EXPREWH792OC · First registered 2021
- Eagle Pipe & Mechanical LLCEXPIRED
Poulsbo, WA · License EAGLEPM770N5 · First registered 2023
- Eastern Washington PlumbingRE-LICENSED
Quincy, WA · License EASTEWP846KL · First registered 2016
- Einstein Pros of Seattle LLCSUSPENDED
Sisters, OR · License EINSTPS771O8 · First registered 2023
Seattle, WA · License EMERACP900JH · First registered 2010
- Eron's Plumbing LLCEXPIRED
East Wenatchee, WA · License ERONSP*931DG · First registered 2007
- Express Service Group LLCEXPIRED
Silverdale, WA · License EXPRESG909R3 · First registered 2010