Plumbing contractors licensed in Washington

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

• Heritage Contracting LLC
  Plumbing · Greenacres · #HERITCL776N5
  Active Insurance expiring soon
• Heritage Mechanical INC
  Plumbing · Suquamish · #HERITMI796OZ
  Active Insurance current
• Heritage Plumbing
  Plumbing · Ridgefield · #HERITP*75586
  Active Insurance current
• Hermanson Company LLC
  Plumbing · Kent · #HERMACL751PA
  Active Insurance current
• Hernandez Plumbing
  Plumbing · Federal Way · #HERNAPL767JN
  Active Insurance current
• Hero Plumbing LLC
  Plumbing · Lynnwood · #HEROPPL788QW
  Active Insurance current
• Heros Plumbing Service
  Plumbing · Athol · #HEROSPS782J9
  Active Insurance current
• Herricks Plumbing LLC
  Plumbing · Auburn · #HERRIPL757JB
  Active Insurance current
• Hhh Construction
  Plumbing · Colville · #HHHCOC*774CZ
  Active Insurance current
• Hi-Tech Plumbing LLC
  Plumbing · Bothell · #HITECPL796OB
  Active Insurance expiring soon
• High Caliber Plumbing
  Plumbing · Anacortes · #HIGHCCP783M1
  Active Insurance current
• Highland Plumbing LLC
  Plumbing · Vancouver · #HIGHLPL751BF
  Active Insurance current
• Highlander Pump & Well Svc LLC
  Plumbing, Landscaping · Everson · #HIGHLPW741NP
  Active Insurance current
• Highmark Plumbing & Const LLC
  Plumbing · Snohomish · #HIGHMPC794O2
  Active Insurance current
• Hillco Contracting INC
  Plumbing · Bellingham · #HILLCCI770PZ
  Active Insurance current
• Hilliards Htng & Plbg INC
  Plumbing · Pullman · #HILLIHP791OH
  Active Insurance current
• Hixx Plumbing LLC
  Plumbing · Lewiston · #HIXXPPL771P4
  Active Insurance current
• Hms Commercial Service INC
  Plumbing · Milwaukie · #HMSCOCS746L4
  Active Insurance current
• Ho's Plumbing CO
  Plumbing · Seattle · #HOSPLPC782BL
  Active Insurance current
• Hobi Plumbing LLC
  Plumbing · Lopez Island · #HOBIPPL795MR
  Active Insurance expiring soon
• Hodge Plumbing Company LLC
  Plumbing · Suquamish · #HODGEPC775J6
  Active Insurance current
• Holaday-Parks INC
  Plumbing · Tukwila · #HOLADI*794MG
  Active Insurance expiring soon
• Hollingsworth Plumbing LLC
  Plumbing · Bellingham · #HOLLIPL789K3
  Active Insurance current
• Hollow Log Plumbing
  Plumbing · Langley · #HOLLOLP792O4
  Active Insurance current
• Holloway Plumbing Servs Corp
  Plumbing · Renton · #HOLLOPS767KG
  Active Insurance current
• Holly's Plumbing
  Plumbing · Rathdrum · #HOLLYP*781DA
  Active Insurance current
• Holmberg Company
  Plumbing · Bellevue · #HOLMBC*794MF
  Active Insurance current
• Holmes Mechanical INC
  Plumbing · Bremerton · #HOLMEMI789PD
  Active Insurance current
• Homage
  Plumbing · Everett · #HOMAG**771N4
  Active Insurance current
• Home Comfort Alliance LLC
  Plumbing · Redmond · #HOMECCA751QG
  Active Insurance current
• Home Depot U.s.a., Inc.
  Plumbing · Atlanta · #HOMEDDU785NU
  Active Insurance current
• Homeservice Plumbers LLC
  Plumbing · Seattle · #HOMESPL773KW
  Active Insurance current
• Hometown Plumbing LLC
  Plumbing · Post Falls · #HOMETPL780C2
  Active Insurance current
• Homewise Services
  Plumbing · Snohomish · #HOMEWS*753NE
  Active Insurance current
• Homola Plumbing INC
  Plumbing · Battle Ground · #HOMOLPI795MB
  Active Insurance current
• Honest Plumbing LLC
  Plumbing · Puyallup · #HONESPL759Q1
  Active Insurance current
• Hong's General Const & Plmbg
  Plumbing · Federal Way · #HONGSGC791O7
  Active Insurance current
• Hood Plumbing LLC
  Plumbing · Walla Walla · #HOODPPL775DS
  Active Insurance current
• Hoover Cmrcl Refrigeration INC
  Plumbing · Mount Vernon · #HOOVECR742OP
  Active Insurance current
• Hope's Plumbing and Mech. LLC
  Plumbing · Olympia · #HOPESPM792QN
  Active Insurance current
• Horizon Hydro Plumbing LLC
  Plumbing · Vancouver · #HORIZHP767C1
  Active Insurance current
• Horizon Plbg/Radiant Heat INC
  Plumbing · Seabeck · #HORIZPH771C2
  Active Insurance current
• Horse Power Plumbing LLC
  Plumbing · Port Orchard · #HORSEPP759QE
  Active Insurance expiring soon
• Howerton Plumbing INC
  Plumbing · Colbert · #HOWERPI767JE
  Active Insurance current
• Hp Plumbing & Heating INC
  Plumbing · Mountlake Terrace · #HPPLUPH792N5
  Active Insurance current
• Hts Heating Cooling & Plumbing
  Plumbing · Tacoma · #HTSHEHC7416Z
  Active Insurance current
• Hub Plumbing LLC
  Plumbing · Renton · #HUBPLPL745D4
  Active Insurance current
• Hudy Plumbing & Heating INC
  Plumbing · Monroe · #HUDYPPH793MG
  Active Insurance current
• Hug Construction
  Plumbing · Spokane · #HUGCOC*787KP
  Active Insurance current
• Humphrey Plumbing
  Plumbing · Chehalis · #HUMPHP*775LF
  Active Insurance current
• Hunt's Services
  Plumbing · Milton · #HUNTSS*793OA
  Active Insurance current
• Hy-Tec Custom Hydronics
  Plumbing · Everett · #HYTECCH791NQ
  Active Insurance current
• Hydro-Thermal Solutions LLC
  Plumbing · Tacoma · #HYDROSL752DS
  Active Insurance current
• Hydrosci LLC
  Plumbing · Mead · #HYDROL*785KQ
  Active Insurance current
• Hydrotek Plumbing LLC
  Plumbing · Spokane Valley · #HYDROPL7636P
  Active Insurance current
• Hydrus Plumbing LLC
  Plumbing · Shoreline · #HYDRUPL783J8
  Active Insurance current
• I Need a Plumber Now
  Plumbing · Kent · #INEEDNP775C8
  Active Insurance current
• Ibex Plumbing LLC
  Plumbing · Everett · #IBEXPPL742B9
  Active Insurance current
• Icon Plumbing LLC
  Plumbing · Spokane · #ICONPPL760QR
  Active Insurance current
• Idb Plumbing Solutions LLC
  Plumbing · Federal Way · #IDBPLPS753P8
  Active Insurance current
• Impact Plumbing LLC
  Plumbing · Yacolt · #IMPACPL797RD
  Active Insurance current
• Impact Plumbing Services LLC
  Plumbing · Tacoma · #IMPACPS755MS
  Active Insurance current
• Imperial Piping & Contrng LLC
  Plumbing · Elk · #IMPERPC784KC
  Active Insurance current
• Imperial Plumbing LLC
  Plumbing · Wenatchee · #IMPERPL765DH
  Active Insurance current
• In & Out Plumbing
  Plumbing · Tacoma · #OUTPLOP792MB
  Active Insurance current
• Independent Plumbing
  Plumbing · Sequim · #INDEPP*797MF
  Active Insurance current
• Independent Plumbing LLC
  Plumbing · Ariel · #INDEPPL754NN
  Active Insurance current
• Inferno Sewer & Drain LLC
  Plumbing · Arlington · #INFERSD747M8
  Active Insurance current
• Infinite Build LLC
  Plumbing · Battle Ground · #INFINBL761PS
  Active Insurance current
• Innovative Plumbing Concepts
  Plumbing · Lake Stevens · #INNOVPC792PL
  Active Insurance current
• Installs LLC
  Plumbing · Amherst · #INSTAL*770N4
  Active Insurance current
• Instant Accurate Plumbing LLC
  Plumbing · Seattle · #INSTAAP790QW
  Active Insurance current
• Integrated Service Company LLC
  Plumbing · Tulsa · #INTEGSC751BN
  Active Insurance current
• Integrity Energy Systems
  Plumbing · Seattle · #INTEGES771L8
  Active Insurance current
• Integrity Plumbing
  Plumbing · Kent · #INTEGP*782P6
  Active Insurance current
• Integrity Plumbing LLC
  Plumbing · Pasco · #INTEGPL751RE
  Active Insurance current
• Integrity Pumps&filtration LLC
  Plumbing, Landscaping · Carlsborg · #INTEGPL787C4
  Active Insurance current
• International Plumbing INC
  Plumbing · Puyallup · #INTERPI792MA
  Active Insurance current
• Intrepid Mechanical Soltns LLC
  Plumbing · Lake Stevens · #INTREMS794MN
  Active Insurance current
• Ips Plumbing LLC
  Plumbing · Fruitland · #IPSPLPL793RH
  Active Insurance current
• Iron Dawn Mechanical
  Plumbing · Spokane · #IRONDDM782QD
  Active Insurance current
• Irrigation Tech & Control INC
  Plumbing, Landscaping · East Wenatchee · #IRRIGTC759BW
  Active Insurance current
• Irrigators INC
  Plumbing, Landscaping · Moses Lake · #IRRIGI*771BE
  Active Insurance current
• Isaak and Sons Plumbing Llc.
  Plumbing · The Dalles · #ISAAKSP782J8
  Active Insurance current
• Island Plumbing & Mech LLC
  Plumbing · Auburn · #ISLANPM749JB
  Active Insurance current
• IV Rivers INC
  Plumbing · Kennewick · #IVRIVRI766PN
  Active Insurance current
• J & H Plumbing Services INC
  Plumbing · Mount Vernon · #JHPLUHP772MF
  Active Insurance current
• J & J Jenkins Plumbing INC
  Plumbing · Battle Ground · #JJJENJJ778BZ
  Active Insurance current
• J & J Plumbing & Heating LLC
  Plumbing · Greenacres · #JJPLUJP795ML
  Active Insurance current
• J & K Plumbing INC
  Plumbing · Puyallup · #JKPLUKP790PL
  Active Insurance current
• J 1 Plumbing
  Plumbing · Auburn · #J1PLU1P773C2
  Active Insurance current
• J Alden Plumbing
  Plumbing · Seattle · #JALDEAP762DG
  Active Insurance current
• J and S Plumbing LLC
  Plumbing · Bonney Lake · #JSPLUSP778NA
  Active Insurance current
• J Walton Plumbing LLC
  Plumbing · Vancouver · #JWALTWP784L1
  Active Insurance current
• J&m Plumbing Services LLC
  Plumbing · Renton · #JMPLUPS796NZ
  Active Insurance current
• J&s Plumbing & Mechanical INC
  Plumbing · Everett · #JSPLUPM786L4
  Active Insurance current
• Ja Plumbing LLC
  Plumbing · Walla Walla · #JAPLUPL743JL
  Active Insurance current
• Jack Wallace Plumbing INC
  Plumbing · The Dalles · #JACKWWP770NP
  Active Insurance current
• Jack's Backflow Testing LLC
  Plumbing · Granite Falls · #JACKSBT742JB
  Active Insurance current
• Jack's Plumbing
  Plumbing · Spokane · #JACKSP*776NC
  Active Insurance current

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