Plumbing contractors licensed in Washington

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

• Byam Plumbing LLC
  Plumbing · Moses Lake · #BYAMPPL774JL
  Active Insurance current
• C & M Plumbing
  Plumbing · Kennewick · #CMPLUMP788BR
  Active Insurance current
• C I C Plumbing Ent
  Plumbing · Buckley · #CICPLIC757DS
  Active Insurance current
• C J's Plumbing
  Plumbing · Twisp · #CJSPLJP782B7
  Active Insurance current
• C Les Plumbing LLC
  Plumbing · Maple Valley · #CLESPLP797NW
  Active Insurance current
• C&c Wirth Mechanical LLC
  Plumbing · Post Falls · #CCWIRWM740O5
  Active Insurance current
• C&n Mechanical LLC
  Plumbing · Everett · #CNMECNM781P8
  Active Insurance current
• Cade Plumbing LLC
  Plumbing · Federal Way · #CADEPPL782O3
  Active Insurance current
• Cahill Plumbing & Heating INC
  Plumbing · Maple Valley · #CAHILPH795RP
  Active Insurance current
• Caliber Plumbing and Mech INC
  Plumbing · Portland · #CALIBPM795QW
  Active Insurance current
• Caliber Plumbing Services LLC
  Plumbing · Everett · #CALIBPS768JA
  Active Insurance current
• Caliber Plumbing/Mech Svcs LLC
  Plumbing · Portland · #CALIBPS789P4
  Active Insurance current
• Calibre Plumbing LLC
  Plumbing · Kent · #CALIBPL740M3
  Active Insurance current
• Call the Plumber
  Plumbing · Spokane · #CALLPP*785KU
  Active Insurance current
• Camas Plumbing LLC
  Plumbing · Camas · #CAMASPL793O4
  Active Insurance expiring soon
• Camp's Plumbing LLC
  Plumbing · The Dalles · #CAMPSPL791P9
  Active Insurance expiring soon
• Campbell Cool Elec Plmb Corp
  Plumbing · Pasco · #CAMPBCE791PL
  Active Insurance current
• Campbell's Quality Plumbing
  Plumbing · Lake Stevens · #CAMPBQP790RP
  Active Insurance current
• Cams Plumbing & Services LLC
  Plumbing · Tacoma · #CAMSPPS773JQ
  Active Insurance current
• Canales Mechanical
  Plumbing · Bow · #CANALM*742O2
  Active Insurance current
• Capital Heating & Cooling
  Plumbing · Lacey · #CAPITHC793RF
  Active Insurance current
• Capital Plumbing & Heating INC
  Plumbing · Dalton Gardens · #CAPITPH781PL
  Active Insurance current
• Cardinal Heating & Air
  Plumbing · Kirkland · #CARDIHA796RD
  Active Insurance current
• Carey Roemer Plumbing
  Plumbing · Spokane · #CAREYRP778PT
  Active Insurance current
• Carlson Mechanical
  Plumbing · Mill Creek · #CARLSM*784BR
  Active Insurance current
• Carrier Plumbing
  Plumbing · Damascus · #CARRIP*780M9
  Active Insurance current
• Carter Plumbing INC
  Plumbing · Amboy · #CARTEPI757KO
  Active Insurance current
• Carver Contracting LLC
  Plumbing · La Center · #CARVECL759O6
  Active Insurance current
• Cascade Climate LLC
  Plumbing · Arlington · #CASCACLA538E
  Active Insurance expiring soon
• Cascade Craft Plumbing LLC
  Plumbing · Seattle · #CASCACP741OD
  Active Insurance current
• Cascade Electric & Plumbing
  Plumbing · Kelso · #CASCAEP781BQ
  Active Insurance current
• Cascade Northwest Plumbing INC
  Plumbing · Yacolt · #CASCANP772C1
  Active Insurance current
• Cascade Plumbing & Htg INC
  Plumbing · White Salmon · #CASCAPH772P6
  Active Insurance current
• Cascade Plumbing CO
  Plumbing · Dundee · #CASCAPC791ON
  Active Insurance expiring soon
• Cascade Plumbing LLC
  Plumbing · Yakima · #CASCAPL786J8
  Active Insurance current
• Cascade Plumbing Service CO
  Plumbing · Woodland · #CASCAPS791RZ
  Active Insurance current
• Cascade Plumbing Solutions LLC
  Plumbing · Bonney Lake · #CASCAPS795OB
  Active Insurance current
• Cascadia Mechanical
  Plumbing · Kingston · #CASCAM*767QM
  Active Insurance current
• Cascadia Plumbing LLC
  Plumbing · Colville · #CASCAPL755CS
  Active Insurance current
• Cascadian Plumbing PLLC
  Plumbing · Auburn · #CASCAPP751P8
  Active Insurance expiring soon
• Cashmere Plumbing INC
  Plumbing · Cashmere · #CASHMPI791NB
  Active Insurance current
• Casiano Transport LLC
  Plumbing · Seattle · #CASIATL781K6
  Active Insurance current
• Castle Plumbing Service INC
  Plumbing · Langley · #CASTLPS787BR
  Active Insurance current
• Castle Pump & Electric LLC
  Plumbing · Tieton · #CASTLPE776L7
  Active Insurance current
• Catterall Plumbing INC
  Plumbing · Renton · #CATTEPI796RM
  Active Insurance current
• Cbre Gws Licentia LLC
  Plumbing · Midland · #CBREGGL795PK
  Active Insurance current
• Cedar Creek Plumbing
  Plumbing · Woodland · #CEDARCP788QA
  Active Insurance current
• Centerline Const & Gutters
  Plumbing · Portland · #CENTECG756RQ
  Active Insurance current
• Centerline Plumbing LLC
  Plumbing · Seattle · #CENTEPL780DS
  Active Insurance current
• Central Mechanical Services
  Plumbing · Yakima · #CENTRMS791MO
  Active Insurance current
• Central Plumbing & Mech
  Plumbing · Cle Elum · #CENTRPM767DO
  Active Insurance current
• Cesar Mf Plumbing LLC
  Plumbing · Seaside · #CESARMP776CH
  Active Insurance current
• Cfp Northwest LLC
  Plumbing · Greenacres · #CFPNONL770DA
  Active Insurance current
• Chaco's Plumbing LLC
  Plumbing · Shelton · #CHACOPL764BU
  Active Insurance current
• Chaplin's Plumbing
  Plumbing · Gold Bar · #CHAPLP*749D3
  Active Insurance current
• Charter Mech Contractors INC
  Plumbing · Portland · #CHARTMC779B4
  Active Insurance current
• Chelan Backflow LLC
  Plumbing · Chelan · #CHELABL744JZ
  Active Insurance current
• Chelan Springs Plumbing
  Plumbing · Chelan · #CHELASP763RD
  Active Insurance current
• Chinook Plumbing & Mech LLC
  Plumbing · Bonney Lake · #CHINOPM755DR
  Active Insurance current
• Christensen Plumbing LLC
  Plumbing · Vancouver · #CHRISPL789PD
  Active Insurance current
• Cityview Plumbing
  Plumbing · Renton · #CITYVP*752MP
  Active Insurance current
• Ck Backflow LLC
  Plumbing · Oak Harbor · #CKBACBL748BG
  Active Insurance current
• Clark County Plmbing/Drain LLC
  Plumbing · Camas · #CLARKCP794MH
  Active Insurance current
• Clarkes Pump Service LLC
  Plumbing, Landscaping · Lacey · #CLARKPS774D1
  Active Insurance current
• Classic Plumbing INC
  Plumbing · Redmond · #CLASSPI791OB
  Active Insurance current
• Clayton Plumbing
  Plumbing · Spokane · #CLAYTP*784OB
  Active Insurance current
• Clean Image LLC
  Plumbing · Kennewick · #CLEANIL741NU
  Active Insurance current
• Clean Plumbing LLC
  Plumbing · Walla Walla · #CLEANPL799MF
  Active Insurance current
• Clean Water Pumps&filters LLC
  Plumbing · Puyallup · #CLEANWP786CQ
  Active Insurance expiring soon
• Clean Water Seattle LLC
  Plumbing · Kingston · #CLEANWS754RB
  Active Insurance current
• Clean-N-Rooter LLC
  Plumbing · Seabeck · #CLEANL*767DF
  Active Insurance current
• Cleanline Plumbing & Drain LLC
  Plumbing · Everett · #CLEANPD761OK
  Active Insurance current
• Clear Water Mechanical LLC
  Plumbing · Washougal · #CLEARWM746J9
  Active Insurance current
• Clearview Mechanical INC
  Plumbing · Seattle · #CLEARMI783LP
  Active Insurance current
• Clearwater Systems
  Plumbing · Akron · #CLEARS*777RE
  Active Insurance current
• Clog Pro
  Plumbing · Vancouver · #CLOGPP*772BE
  Active Insurance current
• Clue Plumbing
  Plumbing · Burien · #CLUEPP*784NA
  Active Insurance current
• Cm Heating LLC
  Plumbing · Everett · #CMHEAHL750LP
  Active Insurance current
• Cna Plumbing LLC
  Plumbing · Benton City · #CNAPLPL797NE
  Active Insurance current
• Cnc Plumbing
  Plumbing · Auburn · #CNCPLP*770LT
  Active Insurance current
• Coastal Maint & Plumbing LLC
  Plumbing · Warrenton · #COASTMP741L3
  Active Insurance current
• Coastal Plumbing
  Plumbing · Cosmopolis · #COASTP*741MU
  Active Insurance current
• Coastal Plumbing LLC
  Plumbing · Castle Rock · #COASTPL764CE
  Active Insurance current
• Coffey Refrigeration
  Plumbing · Kennewick · #COFFER*789DA
  Active Insurance current
• Coherent Plumbing
  Plumbing · Spokane · #COHERP*755QL
  Active Insurance current
• Coldspring Pumps INC
  Plumbing · Eastsound · #COLDSPI781KB
  Active Insurance current
• Cole Plumbing & Heating INC
  Plumbing · Tracyton · #COLEPPH797NP
  Active Insurance current
• Cole's Plumbing LLC
  Plumbing · Spokane · #COLESPL798QN
  Active Insurance current
• Collier Plumber INC
  Plumbing · Seattle · #COLLIPI792MO
  Active Insurance current
• Collins Plumbing Corporation
  Plumbing · Silverdale · #COLLIPC762KL
  Active Insurance current
• Columbia Allied Services INC
  Plumbing · Ridgefield · #COLUMAS783D5
  Active Insurance current
• Columbia Basin Plumbing LLC
  Plumbing · Kennewick · #COLUMBP799MF
  Active Insurance current
• Columbia Cascade Plumbing INC
  Plumbing · Twisp · #COLUMCP791O1
  Active Insurance current
• Columbia Fire LLC
  Plumbing · Seattle · #COLUMFL755RR
  Active Insurance current
• Columbia Mechanical INC
  Plumbing · Woodland · #COLUMMI760NA
  Active Insurance current
• Columbia Pump INC
  Plumbing, Landscaping · Pasco · #COLUMPI784R2
  Active Insurance current
• Columbia River Plbg & Mech LLC
  Plumbing · Kennewick · #COLUMRP796PJ
  Active Insurance current
• Columbia River Plumbing
  Plumbing · Napavine · #COLUMRP773PO
  Active Insurance current
• Comfort Experts Plumbing INC
  Plumbing · Moses Lake · #COMFOEP792O3
  Active Insurance current
• Comfort Heating Cooling & Elec
  Plumbing · Post Falls · #COMFOHC765B2
  Active Insurance current

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