Washington · L&I
Plumbing Contractor license in Washington
A plumbing contractor licensed with L&I: the business employs certified plumbers to perform plumbing work.
- 192 listed businesses hold it in force
- L&I issued by the Washington State Department of Labor & Industries
Where Plumbing Contractor license holders are located
- Battle Ground, WA 11
- Seattle, WA 9
- Vancouver, WA 8
- Moses Lake, WA 5
- Lynnwood, WA 4
- Bellingham, WA 4
- Tacoma, WA 4
- Kent, WA 4
- Woodinville, WA 4
- Kennewick, WA 4
- Spokane, WA 4
- The Dalles, OR 3
- Ridgefield, WA 3
- Olympia, WA 3
- Snohomish, WA 3
- Camas, WA 3
- Lynden, WA 3
- Woodland, WA 3
- Puyallup, WA 3
- Auburn, WA 3
- Redmond, WA 3
- Bremerton, WA 3
- Yakima, WA 3
- Friday Harbor, WA 2
- Troutdale, OR 2
- Goldendale, WA 2
- Poulsbo, WA 2
- Arlington, WA 2
- Colville, WA 2
- Wenatchee, WA 2
- Lacey, WA 2
- Edmonds, WA 2
- Everett, WA 2
- Pasco, WA 2
- La Center, WA 2
- Walla Walla, WA 2
- University Place, WA 2
- Milton Freewater, OR 2
- Shelton, WA 2
- Ellensburg, WA 2
Plumbing Contractor license holders
- DAY & Nite Plumbing & HTG Inc 16614 13TH Ave W
- Devco Mechanical Inc PO Box 966
- Done Right Plmbg & SWR RPR LLC 331 204TH St SW
- EK Plumbing Inc 508 SE 1ST Street
- Elite Mechanical Services LLC 2625 Reinhardt LN NE, Suite F
- Emerald Fire LLC 11505 Burnham Dr Suite 201, Suite 201
- Fischer Services 6608 220TH St SW, Ste 110
- Fogle Pump & Supply Inc 2250 N Highway
- Froula Alarm Systems Inc 861 Industry Dr
- G & L Construction PO Box 294
- Grant Mechanical Inc PO Box 88
- Greenwood Htng & Home Services 14027 Interurban Ave S
- Gresham Pump & Drilling Inc PO Box 1600
- H2O Well Service Inc 582 W Hayden Ave
- Harris Pacific Northwest LLC 3436 Airport Dr
- Harts Services 3510 S Pine Street
- Heise Electric Inc 2613 W 8th Ave
- Hendrickson Plumbing LLC 212 Haberman Rd
- Hermanson Company LLC 1221 2nd Ave N
- Hermanson Company LLP 1221 2ND Avenue N, Kent Wa 98032
- Holmberg Company 12001 SE 9th Place Suite 300, Ste 300
- Home Comfort Alliance LLC 9680 153RD Ave NE, ATTN: Chris Purrier
- Hydrosci LLC 14524 E Sicilia Ln
- Infinite Build LLC 21107 NE Basket Flat Rd
- Integrity Pumps&Filtration LLC PO Box 1214
- Irrigation Tech & Control Inc 4956 Contractors Drive
- Irrigators Inc. 1001 East Broadway
- Jack Wallace Plumbing Inc PO Box 150
- JB Plumbing LLC PO Box 24
- JH Kelly LLC 821 3rd Ave
- JHC Plumbing Services LLC PO Box 312
- JKA Well Drilling & Pumps PO Box 310
- John Zarbock Plumbing Inc PO Box 65098
- JRT Mechanical Inc PO Box 1450
- JT Plumbing LLC 10429 28TH Ave SW
- KEN Paulson Plumbing LLC PO Box 254
- KEN Thompson Drilling Inc 1311 Fairway Dr NE
- LAD Irrigation Co Inc PO Box 880
- Lifetime Heating & Air Cndtng 2801 Bickford Ave Suite 103, Pmb 148
- Lumank Inc 7345 164TH Ave NE Ste 145-488, Ste 145-488
- Lynden Sheet Metal Inc 837 Evergreen St
- Lyons Plumbing & Const LLC 11602 78TH Ave E
- M&M Pumping LLC 2252 Carriage Ave
- Macdonald-miller FAC Solns LLC PO Box 47983
- Maspro Service LLC 3010 NE Cedar Creek Rd
- Mauldin's Well Service Inc PO Box 2960
- Mckinstry Co LLC 5005 3RD Ave S
- Merriman Plumbing LLC 1818 SE 9TH Ave
- Midstate Co-op PO Box 480
- Mike Bach Drilling Company 3340 Wilson Creek Rd
Plumbing Contractor license questions
What is a Plumbing Contractor license in Washington?
A plumbing contractor licensed with L&I: the business employs certified plumbers to perform plumbing work.
How do I check a Plumbing Contractor license?
Search the business name or license number on the Washington lookup page, or open a holder below: each profile shows the license number, status and expiration date. Confirm the live record with the Washington State Department of Labor & Industries.
Confirm on the official L&I lookup
The Washington State Department of Labor & Industries publishes the live status of every license.
Official L&I lookup ↗← Plumbers in Washington · All Washington license classifications