Plumbing contractors licensed in Washington

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

• Arctic Sheet Metal INC
  Plumbing · Portland · #ARCTISM778D9
  Active Insurance current
• Aries Mechanical INC
  Plumbing · Tacoma · #ARIESMI788L7
  Active Insurance current
• Aristo Mechanical CO
  Plumbing · Auburn · #ARISTMC781DA
  Active Insurance expiring soon
• Ark Plumbing Services INC
  Plumbing · Raymond · #ARKPLPS795NL
  Active Insurance current
• Armstrong Plmbng & Mechanical
  Plumbing · Walla Walla · #ARMSTPM754KW
  Active Insurance expiring soon
• Arnold's Plumbing
  Plumbing · Port Orchard · #ARNOLP*770NH
  Active Insurance current
• Arns Plumbing LLC
  Plumbing · Brush Prairie · #ARNSPPL772M4
  Active Insurance current
• Arrow Plumbing & Services LLC
  Plumbing · Spokane · #ARROWPS770JE
  Active Insurance current
• Arrow Stone Plumbing LLC
  Plumbing · Yakima · #ARROWSP754NN
  Active Insurance current
• Arrowhead Plumbing LLC
  Plumbing · Issaquah · #ARROWPL767PM
  Active Insurance current
• Art of Plumbing, the
  Plumbing · Kenmore · #ARTPLP*794NE
  Active Insurance current
• Artemis Plumbing LLC
  Plumbing · Burien · #ARTEMPL796MF
  Active Insurance current
• Artisan Plumbing & Mech LLC
  Plumbing · Enumclaw · #ARTISPM797OB
  Active Insurance current
• Artizan Electric LLC
  Plumbing · Pullman · #ARTIZEL760O4
  Active Insurance current
• As Plumbing & Wh LLC
  Plumbing · Yakima · #ASPLUPW784PM
  Active Insurance expiring soon
• As You Wish Electric
  Plumbing · Renton · #ASYOUYW754CF
  Active Insurance current
• Asap Plumbing INC
  Plumbing · Wenatchee · #ASAPPPI787LP
  Active Insurance current
• Ascent Mechanical & Plmbng INC
  Plumbing · Rathdrum · #ASCENMP794OT
  Active Insurance current
• Aspen Plumbing Services LLC
  Plumbing · Arlington · #ASPENPS751LE
  Active Insurance current
• Associated Plumbing CO
  Plumbing · Gresham · #ASSOCPC772J5
  Active Insurance current
• At Your Service Plumbing INC
  Plumbing · University Place · #YOURSYS799OB
  Active Insurance current
• Ati Plumbing INC
  Plumbing · Oregon City · #ATIPLPI780LG
  Active Insurance current
• Atlas Essentials 7 LLC
  Plumbing · Snohomish · #ATLASE7764RK
  Active Insurance current
• Atlas Mechanical INC
  Plumbing · Woodland · #ATLASMI784BQ
  Active Insurance current
• Atlas Plumbing Contractors
  Plumbing · Woodland · #ATLASPC792MF
  Active Insurance current
• Atomic Plumbing and Mechanical
  Plumbing · West Richland · #ATOMIPM795QN
  Active Insurance current
• Auburn Mechanical INC
  Plumbing · Auburn · #AUBURMI797OB
  Active Insurance current
• Auckland Plumbing INC
  Plumbing · Lyman · #AUCKLPI776LF
  Active Insurance current
• Aurora Plumbing
  Plumbing · Seattle · #AURORP*798NZ
  Active Insurance current
• Av Plumbing LLC
  Plumbing · Ellensburg · #AVPLUPL775JF
  Active Insurance current
• Avalon Contracting INC
  Plumbing · Tacoma · #AVALOCI789MF
  Active Insurance current
• Awa Backflow
  Plumbing · Malott · #AWABAB*780NA
  Active Insurance current
• Axiom Plumbing & Sewers
  Plumbing · Troutdale · #AXIOMPS764NO
  Active Insurance current
• Axiom Plumbing Services LLC
  Plumbing · Lynnwood · #AXIOMPS754JC
  Active Insurance current
• Axis Backflow Testing
  Plumbing · Lake Forest Park · #AXISBBT782DA
  Active Insurance current
• Aztec Plumbing LLC
  Plumbing · Bothell · #AZTECPL762OF
  Active Insurance current
• B & R Plumbing INC
  Plumbing · Spanaway · #BRPLURP763O5
  Active Insurance current
• B & W Plumbing LLC
  Plumbing · Walla Walla · #BWPLUWP743LD
  Active Insurance current
• B P & C S Company LLC
  Plumbing · Tacoma · #BPCSCPC795M2
  Active Insurance current
• B P Plumbing & Mechanical
  Plumbing · Olympia · #BPPLUPP790OA
  Active Insurance current
• B P Services LLC
  Plumbing · Edgewood · #BPSERPS772JC
  Active Insurance current
• B R Plumbing
  Plumbing · Battle Ground · #BRPLUP*784Q9
  Active Insurance current
• B-Line Plumbing LLC
  Plumbing · Tenino · #BLINEPL799MG
  Active Insurance current
• B.hughes Plumbing Service LLC
  Plumbing · Edmonds · #BHUGHPS765MW
  Active Insurance current
• B&g Excavation & Plumbing LLC
  Plumbing · Damascus · #BGEXCEP785BQ
  Active Insurance current
• B&g Plumbing LLC
  Plumbing · Bremerton · #BGPLUPL793NG
  Active Insurance current
• B&m Plumbing & Heating INC
  Plumbing · Riverton · #BMPLUPH776C2
  Active Insurance current
• Backcountry Backflow LLC
  Plumbing · Lacey · #BACKCBL775RQ
  Active Insurance current
• Backflow Assembly Sltns INC
  Plumbing · Kingston · #BACKFAS760K4
  Active Insurance expiring soon
• Backflow for Business
  Plumbing · Gig Harbor · #BACKFFB743C5
  Active Insurance current
• Backflow Johnny
  Plumbing · Colbert · #BACKFJ*779KD
  Active Insurance current
• Backflow Tri-Cities LLC
  Plumbing · Pasco · #BACKFTL774LZ
  Active Insurance current
• Bahm Plumbing LLC
  Plumbing · Anacortes · #BAHMPPL776QW
  Active Insurance expiring soon
• Baikal Services INC
  Plumbing · Everett · #BAIKASI796MK
  Active Insurance current
• Bainbridge Island Plumbing INC
  Plumbing · Bainbridge Island · #BAINBIP799MW
  Active Insurance current
• Baker Contracting LLC
  Plumbing · Clearlake · #BAKERCL7666O
  Active Insurance current
• Ballance Backflow Inspection
  Plumbing · Colville · #BALLABI754M1
  Active Insurance current
• Ballard Home Services
  Plumbing · Lynnwood · #BALLAHS742MZ
  Active Insurance current
• Baltic Plbg & Mechanical LLC
  Plumbing · Renton · #BALTIPM766QH
  Active Insurance current
• Banner Bay Plumbing LLC
  Plumbing · Olalla · #BANNEBP795NG
  Active Insurance current
• Banner Furnace & Fuel INC
  Plumbing · Spokane · #BANNEFF767KU
  Active Insurance current
• Barbo's Plumbing LLC
  Plumbing · Olympia · #BARBOPL795MP
  Active Insurance current
• Barce Plumbing LLC
  Plumbing · Woodinville · #BARCEPL784B7
  Active Insurance current
• Barker Drilling LLC
  Plumbing · Mount Vernon · #BARKEDLA682L
  Active Insurance current
• Barney's Plumbing
  Plumbing · Buckley · #BARNEP*788JE
  Active Insurance current
• Barron Heating & a/C INC
  Plumbing · Ferndale · #BARROHC783N5
  Active Insurance expiring soon
• Basin Pump Service LLC
  Plumbing, Landscaping · Moses Lake · #BASINPS790NR
  Active Insurance current
• Basin Refrigeration & Htg INC
  Plumbing · Moses Lake · #BASINRH792NG
  Active Insurance current
• Bat Pro Backflow Services LLC
  Plumbing · Blaine · #BATPRPB786LP
  Active Insurance current
• Bates Plumbing & Mech LLC
  Plumbing · Longview · #BATESPM753CD
  Active Insurance current
• Bates Plumbing INC
  Plumbing · Marysville · #BATESPI793RG
  Active Insurance current
• Bath Fitter
  Plumbing · City of Spokane Vall · #BATHFF*796OS
  Active Insurance current
• Bathroom Llc, the
  Plumbing · Olympia · #BATHRL*797MP
  Active Insurance current
• Batmaster
  Plumbing · Lake Stevens · #BATMA**783L4
  Active Insurance current
• Baxter Plumbing LLC
  Plumbing · Goldendale · #BAXTEPL741NC
  Active Insurance current
• Bay Star Plumbing, INC
  Plumbing · Enumclaw · #BAYSTSP775KB
  Active Insurance current
• Bayview Pumps INC
  Plumbing, Landscaping · Port Hadlock · #BAYVIPI785R8
  Active Insurance current
• Bazail Plumbing LLC
  Plumbing · Spanaway · #BAZAIPL756C7
  Active Insurance current
• Beacon Plumbing & Mechncal INC
  Plumbing · Kent · #BEACOPM795RD
  Active Insurance expiring soon
• Beagle Services Inc.
  Plumbing · Seattle · #BEAGLSI781NB
  Active Insurance current
• Bear Creek Plumbing LLC
  Plumbing · Bremerton · #BEARCCP768RW
  Active Insurance current
• Bear Plumbing & Heating INC
  Plumbing · University Place · #BEARPPH793NR
  Active Insurance current
• Beaver's Plumbing INC
  Plumbing · Monroe · #BEAVEPI744ON
  Active Insurance current
• Becraft Plumbing
  Plumbing · Mill Creek · #BECRAP*795NL
  Active Insurance current
• Bee Plumbing LLC
  Plumbing · Lewiston · #BEEPLPL745C7
  Active Insurance current
• Bee's Plbg, Htg & Swr CO LLC
  Plumbing · Seattle · #BEESPPH75127
  Active Insurance current
• Bel-Red Plumbing LLC
  Plumbing · Redmond · #BELREPL794NG
  Active Insurance current
• Belbrook Plumbing LLC
  Plumbing · Cle Elum · #BELBRP*760KT
  Active Insurance current
• Belcorp INC
  Plumbing · La Center · #BELCOI*781PJ
  Active Insurance current
• Belks Plumbing & Contrctng LLC
  Plumbing · Long Beach · #BELKSPC787PC
  Active Insurance expiring soon
• Bellevue Plumbing INC
  Plumbing · Bellevue · #BELLEPI795ON
  Active Insurance current
• Bellingham Plumb'g & Htg INC
  Plumbing · Bellingham · #BELLIPH789BL
  Active Insurance current
• Bells Plumbing & Heating
  Plumbing · Silverdale · #BELLSPH793NW
  Active Insurance current
• Belred Heating & Cooling
  Plumbing · Woodinville · #BELREHC759UF
  Active Insurance current
• Ben the Plumber INC
  Plumbing · Bellingham · #BENPLPI783KU
  Active Insurance current
• Ben's Plumbing
  Plumbing · Seattle · #BENSPP*762OR
  Active Insurance current
• Benchmark Plumbing LLC
  Plumbing · Monroe · #BENCHPL740L3
  Active Insurance current
• Benjamin Franklin Plumbing
  Plumbing · Woodinville · #BENJAFP743MG
  Active Insurance current
• Benjamin Franklin Plumbing
  Plumbing · Woodinville · #BENJAFP746K8
  Active Insurance current
• Benla Water Heaters INC
  Plumbing · Tukwila · #BENLAWH780JH
  Active Insurance current

Last checked against state records on Oct 5, 2026. How we get this data.