Plumbing contractors licensed in Washington

Every active Washington license that lists plumbing work, sorted by name.

• Comfort Systems USA (nw) INC
  Plumbing · Woodinville · #COMFOSU783DC
  Active Insurance expiring soon
• Companion Plumbing & Htng LLC
  Plumbing · Sammamish · #COMPAPH797RM
  Active Insurance expiring soon
• Compass Plmbg & Drain Svcs LLC
  Plumbing · Puyallup · #COMPAPD788N4
  Active Insurance current
• Complete Plumbing Sltn LLC
  Plumbing · Mukilteo · #COMPLPS776JL
  Active Insurance current
• Compound Plumbing
  Plumbing · Walla Walla · #COMPOP*793NG
  Active Insurance current
• Compound Services LLC
  Plumbing · Battle Ground · #COMPOSL782O2
  Active Insurance current
• Connect Plumbing LLC
  Plumbing · Colton · #CONNEPL784B7
  Active Insurance current
• Connected Plumbing & Drns LLC
  Plumbing · Cashmere · #CONNEPD758P2
  Active Insurance expiring soon
• Control Solutions NW INC
  Plumbing · Spokane Valley · #CONTRSN776QL
  Active Insurance current
• Convenient Water Htrs&plbg LLC
  Plumbing · Graham · #CONVEWH782OL
  Active Insurance current
• Convey Plumbing
  Plumbing · Seattle · #CONVEP*793OO
  Active Insurance current
• Coolwater Drilling INC
  Plumbing · Bremerton · #COOLWDI784KD
  Active Insurance current
• Coon Plumbing LLC
  Plumbing · Port Townsend · #COONPPL794NW
  Active Insurance current
• Copper Creek Plumbing Services
  Plumbing · Kirkland · #COPPECP796RP
  Active Insurance current
• Copper Mechanical LLC
  Plumbing · Ridgefield · #COPPEML791M2
  Active Insurance current
• Copper Pipe Plumbing
  Plumbing · Olga · #COPPEPP764PB
  Active Insurance current
• Copper Plumbing LLC
  Plumbing · Rochester · #COPPEPL795MR
  Active Insurance current
• Cor Tech Plumbing & Mech LLC
  Plumbing · Longview · #CORTETP773B3
  Active Insurance current
• Core Mechanical LLC
  Plumbing · La Center · #COREMML793NB
  Active Insurance current
• Cornell Plumbing & Htng INC
  Plumbing · Tacoma · #CORNEPH793NZ
  Active Insurance current
• Cornerstone Plumbing & Sply CO
  Plumbing · Tacoma · #CORNEPS791O2
  Active Insurance current
• Cornerstone Plumbing LLC
  Plumbing · Spokane Valley · #CORNEPL798NZ
  Active Insurance current
• Cosco Fire Protection INC
  Plumbing · Tukwila · #COSCOFP784P7
  Active Insurance current
• Costco Wholesale Corporation
  Plumbing · Seattle · #COSTCWC770K6
  Active Insurance current
• Cougar Heating & Cooling
  Plumbing · Caldwell · #COUGAHC774KH
  Active Insurance current
• Coulee City Plumbing LLC
  Plumbing · Coulee City · #COULECP751NJ
  Active Insurance current
• Country Plumbing
  Plumbing · Colville · #COUNTP*781KQ
  Active Insurance current
• Covington Plumbing INC
  Plumbing · Bellevue · #COVINPI773LO
  Active Insurance current
• Cowlitz Pride Plumbing LLC
  Plumbing · La Center · #COWLIPP798RF
  Active Insurance current
• Coy's Plumbing LLC
  Plumbing · Prosser · #COYSPPL784NB
  Active Insurance current
• Coyote Plumbing LLC
  Plumbing · Buckley · #COYOTPL761BU
  Active Insurance current
• Cpi Plumbing & Heating
  Plumbing · Woodinville · #CPIPLPH754T7
  Active Insurance current
• Cr Plumbing
  Plumbing · Renton · #CRPLUP*796O3
  Active Insurance current
• Crabtree Well Drilling LLC
  Plumbing, Landscaping · Kingston · #CRABTWD786LS
  Active Insurance current
• Craftsman Plumbing LLC
  Plumbing · Seattle · #CRAFTPL798P9
  Active Insurance current
• Craig's Plumbing Solutions LLC
  Plumbing · Washougal · #CRAIGPS796NR
  Active Insurance current
• Crb LLC
  Plumbing · Friday Harbor · #CRBLLL*786RZ
  Active Insurance current
• Creative Plumbing Solutions
  Plumbing · Monroe · #CREATPS796O2
  Active Insurance current
• Creekside Plumbing LLC
  Plumbing · Cashmere · #CREEKPL753K9
  Active Insurance current
• Crescent Builds
  Plumbing · Seattle · #CRESCB*763JJ
  Active Insurance current
• Crescent Plumbing
  Plumbing · Forks · #CRESCP*781O1
  Active Insurance current
• Crescent Valley Plumbing LLC
  Plumbing · Gig Harbor · #CRESCVP797NQ
  Active Insurance expiring soon
• Creso Family Plumbing LLC
  Plumbing · Tacoma · #CRESOFP798PR
  Active Insurance current
• Cross Connection Services
  Plumbing · Puyallup · #CROSSCS773RG
  Active Insurance current
• Crossroads Plumbing Serv INC
  Plumbing · Zillah · #CROSSPS772BZ
  Active Insurance current
• Crown Plumbing
  Plumbing · Portland · #CROWNP*787P7
  Active Insurance current
• Cruz Mechanical LLC
  Plumbing · Yakima · #CRUZMML755KG
  Active Insurance current
• Csi Plumbing LLC
  Plumbing · Deer Park · #CSIPLPL751CS
  Active Insurance current
• Culligan Quench
  Plumbing · King of Prussia · #CULLIQ*752MH
  Active Insurance current
• Cumbee & CO Const LLC
  Plumbing · Gig Harbor · #CUMBECC749KQ
  Active Insurance current
• Curtis Cons Plbg & Elec LLP
  Plumbing · Yelm · #CURTICP764BR
  Active Insurance current
• Curtius Plumbing and Mech INC
  Plumbing · Medford · #CURTIPM795MF
  Active Insurance current
• Custom Plumbing
  Plumbing · Athol · #CUSTOP*781QZ
  Active Insurance current
• Custom Radiant
  Plumbing · Milton · #CUSTOR*787QN
  Active Insurance current
• Cutting Edge Plmb & Mech INC
  Plumbing · Walla Walla · #CUTTIEP793MN
  Active Insurance current
• Cw Plumbing Remodel & Sewr LLC
  Plumbing · Milton · #CWPLUPR786D2
  Active Insurance current
• Cw Rnm Services LLC
  Plumbing · Yakima · #CWRNMRS792NG
  Active Insurance current
• D & F Plumbing CO
  Plumbing · Vancouver · #DFPLUFP782LP
  Active Insurance current
• D & R Plumbing LLC
  Plumbing · Yakima · #DRPLURP786B6
  Active Insurance current
• D & S Plumbing LLC
  Plumbing · Everett · #DSPLUSP787CM
  Active Insurance current
• D Henry INC
  Plumbing · Seattle · #DHENRHI775C2
  Active Insurance current
• D J's Plumbing LLC
  Plumbing · Centralia · #DJSPLJP785MJ
  Active Insurance current
• D M Kelly Mechanical INC
  Plumbing · Enumclaw · #DMKELMK782DC
  Active Insurance current
• D N K Plumbing
  Plumbing · Tacoma · #DNKPLNK754J5
  Active Insurance current
• D&m Plumbing LLC
  Plumbing · Yacolt · #DMPLUPL746M9
  Active Insurance current
• D3 Plumbing LLC
  Plumbing · Lake Stevens · #D3PLUPL783OT
  Active Insurance current
• Dad Bod Plumbing LLC
  Plumbing · Pasco · #DADBOBP740OC
  Active Insurance current
• Dahlman Pump & Well Drlng INC
  Plumbing, Landscaping · Burlington · #DAHLMPW796NQ
  Active Insurance current
• Dakasi Pmc
  Plumbing · Sequim · #DAKASP*773MK
  Active Insurance current
• Dale Mcghee&sons Well Drl INC
  Plumbing, Landscaping · Kelso · #DALEMMW797MB
  Active Insurance current
• Dale Thomas Plumbing & Htg INC
  Plumbing · Hauser · #DALETTP792PR
  Active Insurance expiring soon
• Daley Plumbing
  Plumbing · Tacoma · #DALEYP*753OR
  Active Insurance current
• Dana's Heating INC
  Plumbing · Bremerton · #DANASHI766B9
  Active Insurance current
• Dandelion Plumbing LLC
  Plumbing · Seattle · #DANDEPL757NR
  Active Insurance current
• Danforth Plumbing P L L C
  Plumbing · Quincy · #DANFOPP780CD
  Active Insurance current
• Danika Plumbing LLC
  Plumbing · Everett · #DANIKPL782OF
  Active Insurance current
• Danrenke Plumbing LLC
  Plumbing · Maple Valley · #DANREPL751CD
  Active Insurance current
• Dapper Plumbing
  Plumbing · Marysville · #DAPPEP*770C2
  Active Insurance current
• Dave's Plumbing INC
  Plumbing · East Wenatchee · #DAVESPI795OB
  Active Insurance current
• Daves Plumbing
  Plumbing · Bothell · #DAVESP*750QS
  Active Insurance expiring soon
• Davis Drilling LLC
  Plumbing · Belfair · #DAVISDL754JP
  Active Insurance current
• Davis Plumbing INC
  Plumbing · Renton · #DAVISPI796NW
  Active Insurance expiring soon
• Davis Pumps INC
  Plumbing, Landscaping · Belfair · #DAVISPI763PS
  Active Insurance current
• Day & Nite Plumbing & Htg INC
  Plumbing · Lynnwood · #DAYNINP795OS
  Active Insurance current
• Dc Plumbing Spokane
  Plumbing · Spokane · #DCPLUPS787O8
  Active Insurance current
• Dci Plumbing INC
  Plumbing · Black Diamond · #DCIPLPI799NU
  Active Insurance current
• Ddb Plumbing
  Plumbing · Richland · #DDBPLP*779MU
  Active Insurance current
• De La Rosa Plumbing
  Plumbing · Puyallup · #DELARLR779L6
  Active Insurance current
• Dean's Plumbing LLC
  Plumbing · Lacey · #DEANSPL786P7
  Active Insurance current
• Dear Services
  Plumbing · Kent · #DEARSS*7404W
  Active Insurance current
• Dee Dubs Plumbing INC
  Plumbing · East Olympia · #DEEDUDP781KE
  Active Insurance current
• Deep Creek Plumbing LLC
  Plumbing · Airway Heights · #DEEPCCP7444P
  Active Insurance current
• Deep Water Plumbing LLC
  Plumbing · Tacoma · #DEEPWWP782BR
  Active Insurance expiring soon
• Delk's Plumbing LLC
  Plumbing · Mount Vernon · #DELKSPL775BZ
  Active Insurance current
• Delta Plumbing LLC
  Plumbing · Seattle · #DELTAPL755M5
  Active Insurance current
• Delta Rooter LLC
  Plumbing · Maple Valley · #DELTARL768QG
  Active Insurance current
• Dependable Plbg/Wtr Cndtng INC
  Plumbing · Kennewick · #DEPENPC795OP
  Active Insurance expiring soon
• Design West Mechanical
  Plumbing · Kent · #DESIGWM7745M
  Active Insurance current
• Detemple Company INC
  Plumbing · Milwaukie · #DETEMCI766MU
  Active Insurance current
• Devco Mechanical INC
  Plumbing · The Dalles · #DEVCOMI780JH
  Active Insurance current

Last checked against state records on Oct 6, 2026. How we get this data.