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.

TWIN WATER HEATER LLCACTIVE
Lynnwood, WA · License TWINWWH740LP · Registered less than 1 year
TWISP WELL PUMP LLCACTIVE
Twisp, WA · License TWISPWP753D7 · Registered 1 year
TYECO PLUMBING & HYDRONICS LLCACTIVE
Spokane, WA · License TYECOPH797O7 · Registered 5 years
The Drain SpecialistsACTIVE
Nine Mile Falls, WA · License DRAINDS756JG · Registered 1 year
Timeless Plumbing LLCACTIVE
Shoreline, WA · License TIMELPL789DS · Registered 4 years
Treat Plumbing LLCACTIVE
Olympia, WA · License TREATPL785NS · Registered 4 years
UISCE PLUMBING LLCACTIVE
Bothell, WA · License UISCEPL767LK · Registered 2 years
ULTRA PLUMBING LLCACTIVE
Graham, WA · License ULTRAPL786C4 · Registered 4 years
UNCLE SHIETZ PLUMBING INCACTIVE
Seattle, WA · License UNCLESP790PF · Registered 5 years
UNDERDOG PLUMBING COMPANY LLCACTIVE
Nampa, ID · License UNDERPC788NR · Registered 4 years
UNIFORM PLUMBING CO LLCACTIVE
Milton, WA · License UNIFOPC793QN · Registered 4 years
UNION CITY PLUMBING INCACTIVE
Shelton, WA · License UNIONCP795NP · Registered 5 years
UNITED CROWN PUMP & DRILLINGACTIVE
Hayden, ID · License UNITECP783DS · Registered 4 years
UNITED PLUMBINGACTIVE
Spokane, WA · License UNITEP*791RN · Registered 4 years
UNITED PLUMBING SERVICESACTIVE
Vancouver, WA · License UNITEPS745KN · Registered less than 1 year
UNITED WATER & AIR LLCACTIVE
Vancouver, WA · License UNITEWA766KU · Registered 2 years
UNITED WATER SERVICES INCACTIVE
Vancouver, WA · License UNITEWS788P8 · Registered 3 years
UNIVERSAL PLUMBING CO LLCACTIVE
Mossyrock, WA · License UNIVEPC786L4 · Registered 4 years
UNIVERSITY MECH CONTR INCACTIVE
Lynnwood, WA · License UNIVEMC796NS · Registered 5 years
UNLIMITED HTNG & REFRIGRTN INCACTIVE
Moscow, ID · License UNLIMHR793O3 · Registered 5 years
URBAN MECHANICAL LLCACTIVE
Pasco, WA · License URBANML752NN · Registered 1 year
UTILITY MANAGEMENT GROUP LTDACTIVE
Lopez Island, WA · License UTILIMG781KC · Registered 4 years
VALDES PLUMBING LLCACTIVE
Chelan, WA · License VALDEPL763RT · Registered 1 year
VALENCIA PLUMBING LLCACTIVE
Federal Way, WA · License VALENPL783C2 · Registered 4 years
VALLEY PLUMBING & ELECTRIC INCACTIVE
Lynden, WA · License VALLEPE770MP · Registered 3 years
VALLEY PLUMBING LLCACTIVE
Naselle, WA · License VALLEPL783O3 · Registered 3 years
VALLEY PUMP INCACTIVE
Auburn, WA · License VALLEPI789DJ · Registered 4 years
VALOR PLUMBING LLCACTIVE
Kent, WA · License VALORPL765JJ · Registered 2 years
VANCOUVER PLUMBING LLCACTIVE
Brush Prairie, WA · License VANCOPL783LP · Registered 4 years
VANGUARD PLUMBING LLCACTIVE
Post Falls, ID · License VANGUPL744O3 · Registered less than 1 year
VARNER PLUMBING LLCACTIVE
Spokane Valley, WA · License VARNEPL750OR · Registered 1 year
VASHON PLUMBING SERVICES LLCACTIVE
Vashon, WA · License VASHOPS781L2 · Registered 4 years
VATTEN PLUMBING LLCACTIVE
Kalama, WA · License VATTEPL779D8 · Registered 3 years
VERMILLION PUMP & DRILLING LLCACTIVE
Chattaroy, WA · License VERMIPD786TP · Registered 4 years
VERTICAL PLUMBING INCACTIVE
Spokane Valley, WA · License VERTIPI771JE · Registered 3 years
VET FIRST CONSTRUCTORS LLCACTIVE
Tacoma, WA · License VETFIFC796NW · Registered 5 years
VETTER PLUMBING SVC. LLCACTIVE
Longview, WA · License VETTEPS770OF · Registered 3 years
VICKREY PLUMBING SERVICES LLCACTIVE
East Wenatchee, WA · License VICKRPS744MB · Registered less than 1 year
VIKING PLUMBING & MECHANICALACTIVE
Selah, WA · License VIKINPM776LW · Registered 3 years
VIKING PLUMBING & ROOTER, LLCACTIVE
Orange Beach, AL · License VIKINPR783BQ · Registered 3 years
VIKING PLUMBING & SEWER LLCACTIVE
Everett, WA · License VIKINPS742OH · Registered less than 1 year
VIKING PLUMBING SERVICES INCACTIVE
Ferndale, WA · License VIKINPS791MB · Registered 5 years
VILLAR PLUMBING SERVICESACTIVE
Puyallup, WA · License VILLAPS740L4 · Registered less than 1 year
VINLAND MECHANICAL & PLUMBINGACTIVE
Poulsbo, WA · License VINLAMP754RN · Registered less than 1 year
VINNY BOY'S PLUMBING LLCACTIVE
Lakewood, WA · License VINNYBP781CM · Registered 4 years
VISION PLUMBING HTG & COOL COACTIVE
Lynden, WA · License VISIOPH785QW · Registered 3 years
VITAL MECHANICAL SERVICEACTIVE
Renton, WA · License VITALMS792MA · Registered 4 years
VIXIE CONSTRUCTION LLCACTIVE
Milton Freewater, OR · License VIXIECL786RL · Registered 3 years
VM PLUMBING INCACTIVE
Vancouver, WA · License VMPLUPI789O3 · Registered 4 years
VP MECHANICAL PLUMBERS LLCACTIVE
Kent, WA · License VPMECMP799NZ · Registered 5 years