Plumbing contractors in Washington
2,262 active plumbing contractors are registered with Washington L&I. 4,448 registrations are on record in all, including expired and other statuses.
199 of the active plumbing contractors registered in Washington are based in other states.
2,262 active registrations
Businesses by registered name and license number. Show all 4,448 registrations on record, including expired.
Lynnwood, WA · License DAYNINP795OS · Registered 5 years
- DC PLUMBING SPOKANEACTIVE
Spokane, WA · License DCPLUPS787O8 · Registered 4 years
- DCI PLUMBING INCACTIVE
Black Diamond, WA · License DCIPLPI799NU · Registered 5 years
- DDB PLUMBINGACTIVE
Richland, WA · License DDBPLP*779MU · Registered 2 years
- DE LA ROSA PLUMBINGACTIVE
Puyallup, WA · License DELARLR779L6 · Registered 3 years
- DEAN'S PLUMBING LLCACTIVE
Lacey, WA · License DEANSPL786P7 · Registered 3 years
- DEAR SERVICESACTIVE
Kent, WA · License DEARSS*7404W · Registered less than 1 year
- DEE DUBS PLUMBING INCACTIVE
East Olympia, WA · License DEEDUDP781KE · Registered 4 years
- DEEP CREEK PLUMBING LLCACTIVE
Airway Heights, WA · License DEEPCCP7444P · Registered less than 1 year
- DEEP WATER PLUMBING LLCACTIVE
Tacoma, WA · License DEEPWWP782BR · Registered 4 years
- DELK'S PLUMBING LLCACTIVE
Mount Vernon, WA · License DELKSPL775BZ · Registered 3 years
- DELTA PLUMBING LLCACTIVE
Seattle, WA · License DELTAPL755M5 · Registered 1 year
- DELTA ROOTER LLCACTIVE
Maple Valley, WA · License DELTARL768QG · Registered 1 year
Kennewick, WA · License DEPENPC795OP · Registered 5 years
- DESIGN WEST MECHANICALACTIVE
Kent, WA · License DESIGWM7745M · Registered 3 years
- DETEMPLE COMPANY INCACTIVE
Milwaukie, OR · License DETEMCI766MU · Registered 2 years
- DEVCO MECHANICAL INCACTIVE
The Dalles, OR · License DEVCOMI780JH · Registered 4 years
- DEVOUT PLUMBING LLCACTIVE
Bemidji, MN · License DEVOUPL749O2 · Registered less than 1 year
- DEWY'S PLUMBING PLLCACTIVE
Kent, WA · License DEWYSPP751RJ · Registered less than 1 year
- DG PLUMBINGACTIVE
Hansville, WA · License DGPLUP*781M6 · Registered 4 years
- DGN PLUMBING LLCACTIVE
Eatonville, WA · License DGNPLPL756J3 · Registered 1 year
Edmonds, WA · License DIAMOPH791NT · Registered 5 years
- DIAMOND PLUMBING INCACTIVE
Black Diamond, WA · License DIAMOPI795NQ · Registered 4 years
Sumner, WA · License DICKSHC742NL · Registered less than 1 year
- DISCOVERY PLUMBING LLCACTIVE
Sequim, WA · License DISCOPL7846N · Registered 4 years
- DIVISION ONE LLCACTIVE
Spokane, WA · License DIVISOL791QN · Registered 4 years
Orting, WA · License DIXONSP768L6 · Registered 2 years
Tacoma, WA · License DMPLUPT793O3 · Registered 4 years
- DNA PLUMBING LLCACTIVE
Rainier, WA · License DNAPLPL778CL · Registered 3 years
- DNM PLUMBINGACTIVE
Wenatchee, WA · License DNMPLP*761NT · Registered 2 years
Lynnwood, WA · License DONERRP756BN · Registered 1 year
Lynnwood, WA · License DONERRP798O7 · Registered 4 years
- DONOVAN PLUMBING INCACTIVE
Shoreline, WA · License DONOVPI783JR · Registered 4 years
Friday Harbor, WA · License DONOVWP773RR · Registered 2 years
- DOUBLE A PLUMBING LLCACTIVE
Pasco, WA · License DOUBLPL792NF · Registered 5 years
- DOUBLE CHECK WATERWORKSACTIVE
Maple Falls, WA · License DOUBLCW746KE · Registered less than 1 year
- DOVE PLUMBINGACTIVE
East Union, WA · License DOVEPP*762NF · Registered 2 years
- DOWNRIVER PLUMBING LLCACTIVE
Spokane, WA · License DOWNRPL799NQ · Registered 5 years
- DR PHIL'S PLUMBING INCACTIVE
Tacoma, WA · License DRPHIPP7515E · Registered 1 year
- DRAIN AWAY PLUMBINGACTIVE
San Diego, CA · License DRAINAP794OS · Registered 5 years
- DRAIN FLOW LLCACTIVE
Everett, WA · License DRAINFL790RH · Registered 4 years
- DRAIN HOUND LLCACTIVE
Battle Ground, WA · License DRAINHL773J1 · Registered 3 years
- DRAIN PROACTIVE
Kendrick, ID · License DRAINP*838O8 · Registered 9 years
- DRAIN PRO PLUMBING INC.ACTIVE
Kent, WA · License DRAINPP797RH · Registered 4 years
Wenatchee, WA · License DRAINSW769NA · Registered 2 years
- DRAIN-PRO INCACTIVE
Puyallup, WA · License DRAINI*754KG · Registered 1 year
- DRAINDOCTOR INCACTIVE
Spokane, WA · License DRAINI*744OB · Registered less than 1 year
- DRAINSUNCLOGGED.COMACTIVE
Edmonds, WA · License DRAIN**741L3 · Registered less than 1 year
Renton, WA · License DRIFTPL769PB · Registered 1 year
- DRILLER MAN, THEACTIVE
Newport, WA · License DRILLM*781C3 · Registered 4 years