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.
- ON CALL PLUMBING LLCEXPIRED
Spokane, WA · License CALLPCP782PE · First registered 2022
- ON- POINT PLUMBINGEXPIRED
West Richland, WA · License POINTPP788DC · First registered 2022
- ON-SITE TESTINGRE-LICENSED
Bellingham, WA · License ONSITT*014CR · First registered 1999
- ON-SITE TESTINGSUPERCEDED
Bellingham, WA · License SITETT*799MK · First registered 2021
- ONE CALL PLUMBINGEXPIRED
Federal Way, WA · License ONECACP762MR · First registered 2024
- ORCA PLUMBING INCEXPIRED
Bellingham, WA · License ORCAPI*990B2 · First registered 2001
- ORCA PLUMBING INCOUT OF BUSINESS
Bellingham, WA · License ORCAPPI787NC · First registered 2022
Salem, OR · License OREGOCP140QP · First registered 1986
- OSBALDO PLUMBINGSUPERCEDED
Kenmore, WA · License OSBALP*781NS · First registered 2022
- OSBALDO PLUMBING LLCEXPIRED
Kenmore, WA · License OSBALPL773LB · First registered 2023
- Olympus Plumbing LLCRE-LICENSED
Port Angeles, WA · License OLYMPPL8136O · First registered 2019
- P J'S HEATING COOLING/PLUMBINGSUSPENDED
Spokane, WA · License PJSHEJH783DM · First registered 2022
- P M PLUMBINGOUT OF BUSINESS
Vancouver, WA · License PMPLU**981DJ · First registered 2002
- P M S Plumbing LLCEXPIRED
Longview, WA · License PMSPLMS787JH · First registered 2022
- P M S Plumbing LLCEXPIRED
Longview, WA · License PMSPLMS841B8 · First registered 2016
- PAC WEST PIPEWORKS LLCEXPIRED
Tacoma, WA · License PACWEWP787RO · First registered 2022
- PACE PLUMBING INCSUSPENDED
Spokane, WA · License PACEPPI793NL · First registered 2021
- PACE PLUMBING INCRE-LICENSED
Spokane, WA · License PACEPPI940JL · First registered 2006
- PACHECO PLUMBINGEXPIRED
Spanaway, WA · License PACHEP*774JF · First registered 2023
- PACIFIC BACKFLOW SERVICES LLCRE-LICENSED
Richland, WA · License PACIFBS868N9 · First registered 2014
- PACIFIC CREST PLUMBING LLCSUSPENDED
Lake Stevens, WA · License PACIFCP753KG · First registered 2025
- PACIFIC DRAIN SERVICES, LLCRE-LICENSED
Vancouver, WA · License PACIFDS932RR · First registered 2007
Redmond, WA · License PACIFNP850JO · First registered 2015
Lacey, WA · License PACIFNP796O2 · First registered 2021
- PACIFIC PARTNERS CONSULTINGEXPIRED
Puyallup, WA · License PACIFPC771PW · First registered 2023
- PACIFIC PLUMBING AND MECH LLCRE-LICENSED
Spokane, WA · License PACIFPM890OK · First registered 2011
- PACIFIC SUNSHINE PLUMBING LLCOUT OF BUSINESS
Snohomish, WA · License PACIFSP827N7 · First registered 2018
- PAINTNER PLUMBING INCSUSPENDED
Nine Mile Falls, WA · License PAINTPI794NB · First registered 2021
- PALADIN PLUMBING LLCEXPIRED
Bellingham, WA · License PALADPL769BU · First registered 2024
- PARADICE PLUMBING LLCEXPIRED
Post Falls, ID · License PARADPL798OH · First registered 2021
- PARADISE PLUMBINGRE-LICENSED
Renton, WA · License PARADP*033JS · First registered 1997
- PARADISE PLUMBINGSUSPENDED
Renton, WA · License PARADP*790RF · First registered 2022
- PARADISE PLUMBING INCEXPIRED
Stanwood, WA · License PARADPI985L4 · First registered 2002
- PARADISO MECHANICALRE-LICENSED
Seattle, WA · License PARADM*981LP · First registered 2002
- PARAMOUNT MECHANICAL SYS INCEXPIRED
Renton, WA · License PARAMMS952BS · First registered 2005
- PARIS PLUMBING & HEATING INCEXPIRED
Lynnwood, WA · License PARISPH789DC · First registered 2022
- PARK PLACE PLUMBING LLCSUSPENDED
Vancouver, WA · License PARKPPP781R9 · First registered 2022
- PARKER PLUMBINGEXPIRED
Spokane, WA · License PARKEP*795MO · First registered 2021
- PARKER PLUMBINGRE-LICENSED
Spokane, WA · License PARKEP*832L9 · First registered 2017
- PARKER PLUMBING LLCRE-LICENSED
Spokane Valley, WA · License PARKEPL817OW · First registered 2019
- PARKER SERVICES INCRE-LICENSED
Seattle, WA · License PARKESI864JB · First registered 2014
Graham, WA · License PARREPR799NR · First registered 2021
- PARROT PLUMBING LLCSUSPENDED
Woodland, WA · License PARROPL750P1 · First registered 2025
- PAT'S DOUBLE A PLUMBINGSUSPENDED
Aberdeen, WA · License PATSDDP798NG · First registered 2022
- PAT'S DOUBLE A PLUMBINGRE-LICENSED
Aberdeen, WA · License PATSDP*147OH · First registered 1986
- PAT'S PLUMBINGEXPIRED
Centralia, WA · License PATSP**063Q9 · First registered 1994
- PAT'S PLUMBINGEXPIRED
Centralia, WA · License PATSPP*766LC · First registered 2024
- PAT'S PUMPS LLCSUSPENDED
Elk, WA · License PATSPPL754B8 · First registered 2025
- PAT'S PUMPS LLCRE-LICENSED
Elk, WA · License PATSPPL788MJ · First registered 2022
- PAT'S PUMPS LLCEXPIRED
Elk, WA · License PATSPPL797O1 · First registered 2022