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
- Mike's Mechanical Services LLC 1005 Warner Ave
- Morgan Mechanical Inc 12256 134th CT NE, Suite #145
- Mullins Enterprises LLC 217205 E Finley Rd
- MVM Quality Drilling LLC 404 S Clifford St
- Mykol Pump & Drilling Inc 6110 Puget Beach Rd NE
- Nicholson Drilling Inc PO Box 123
- Nordic Temperature Control Inc 380 Pease Road, Suite 101
- North Fork Plumbing LLC 4405 NE Stoughton Rd
- Northern Waters Inc PO Box 1293
- Northside Heat & Cool 180B Degrief Rd
- Northwest Fire Systems LLC 22645 83RD Ave S
- Northwest Mechanical Group LLC 1250 NW 3RD Avenue
- NW Custom Plumbing LLC 17146 Britt Road
- NW Sundance Services Inc 10117 SE Sunnyside Rd Ste F1201, Ste F1201
- O'connell Drilling&supply LLC PO Box 1845
- Oasis Well Drilling Inc 164 Spring Rd
- Ocean Park Mechanical Inc 14900 Interurban Ave Ste 283
- Oregon Mechanical Group LLC 23099 SE Mercer Ct
- Outwest Contracting & Elec PO Box 1305
- P1 Plumbing LLC 6500 NE 45TH Way
- Pacific Facility Solutions Inc PO Box 5751
- Patriot Plumbing HTG & Cooling 536 S Chelan Ave
- Perry Technical Institute 2011 W Washington Ave
- Peterson Pump Service LLC 40304 NW 9th Ave
- PEX Plumbing 5866 NE Pinefarm Ct
- Piper Mechanical Inc 9321 NE 72ND Ave 6
- Plumbing Enterprises P O Box 921
- Plumbing Pro's LLC PO Box 188
- Power Plumbing Co PO Box 19418
- Premier Mech And Electric LLC 18915 142ND Ave NE 240, Suite 240
- Prevision Plumbing LLC 500 S Lasco Lane STE 213
- Proline Plumbing & Sewer 3214 NE 58TH St
- PSF Mechanical Inc 5005 Pacific Hwy E, Ste 4
- R A Warner Plumbing Co Inc PO Box 493
- R M Mechanical Inc 5998 W Gowen Rd
- R-K Plumbing & Heating LLC 11524 Clover Crest Dr SW
- Rayborns Plumbing Inc 19990 SW Cipole Rd
- Re-bath Of Spokane 720 N Main St, Suite 150
- Red Hawk Fire Protection LLC 801 Valley Ave NW Suite D, Ste D
- Red's Electric Motors Inc 2300 6TH St
- Resicon LLC 6910 27th St W
- RH Drilling & Services Inc 2550 Caraway Lane
- Right NOW Heatng Clng/plbg LLC 212 Evans St
- Robison Plumbing Service Inc PO Box 4009
- RPI Plumbing & Fire Inc 5900 NE 152ND Ave Ste 225
- Russell & Sons Plumbing Inc 6015 NE 88TH St
- Sakrisson Plumbing LLC PO Box 821
- SAN Juan Heating LLC PO Box 923
- Sarkinen Plumbing Inc 9502 NE 72ND Ave
- Schroder's Well Drilling LLC PO Box 165
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