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
- A & A Pump Sales LLC 4660 Cherry Heights RD
- A & A Well Drilling Inc 421 Lopez Hill Road
- A B Contracting And DEV LLC 29030 59th PL S
- A-plus Water Services Inc 10905 - 228TH St NE
- AAA Fire Protection Inc 3013 3RD Ave N
- Action Jackson DRN Cln/plb LLC 7306 210th St SW
- After Hours Plumbing & HTG Inc 3030 Gs Center Rd Ste D
- Alden Plumbing LLC PO Box 538
- All County Plumbing LLC PO Box 522
- Anderson Drilling LLC 6404 145th Dr NE
- Andgar Mechanical LLC PO Box 2708
- Andrews Mechanical Inc 1503 E Wabash Ave
- Apex Mechanical LLC 1507 SE Eaton
- Apollo Drain & Rooter Srvc Inc 853 NE Harlow Rd
- Apollo Mechanical Contractors PO Box 7287
- Arcadia Drilling Inc PO Box 1790
- ATI Plumbing Inc 15630 S Bradley Rd
- Atlas Essentials 7 LLC 1830 Bickford Ave Ste 203, Ste 203
- Auburn Mechanical Inc 2623 W Valley Hwy N
- Basin Pump Service LLC 4455 Road 4 NE
- Bear Plumbing & Heating Inc PO Box 64816
- Bergmann Plumbing LLC 23612 NE 174TH Ct
- Best Plumbing Group LLC 4129 Stone Way N
- Black Hills Inc 1003 85TH Ave SE Suite A
- Blue Line Water Inc 2531 Inter Ave Ste A
- Blythe Mechanical Inc 3000 W Illinois Street
- BNB Mechanical LLC 201 N Fruitland St
- Bob Larson Plumbing LLC 4320 128TH St E
- Bob's Heating & Air Cndtng LLC 14148 NE 190TH St
- Brasuell Plumbing PO Box 328, 320 E Jewett
- Budget Services LLC 13504 NE 84TH St Ste 278
- Camas Plumbing LLC 3803 NW 19TH Cir
- Campbell Cool Elec Plmb Corp 2828 W Irving St
- Cardinal Heating & Air 13649 NE 126th PL STE 101, Ste # 101
- Cascade Climate LLC 18933 59TH Ave NE, #110
- Castle Pump & Electric LLC P.O. Box 479
- CM Heating LLC 1500 Industry St, Ste 200
- Coffey Refrigeration 195908 E 27TH Ave
- Coldspring Pumps Inc PO Box 228
- Columbia Fire LLC 9520 10th Ave S, Ste 150
- Columbia Pump Inc 3510 Stearman Avenue
- Comfort Heating Cooling & Elec 3620 E Covington Avenue
- Coolwater Drilling Inc 10921 Holly Rd NW
- Copper Mechanical LLC PO Box 1149
- Core Mechanical LLC 9522 NE 322ND St
- CPI Plumbing & Heating 18815 139TH Ave NE, Suite B
- Crabtree Well Drilling LLC 33349 Eglon Rd NE
- Craftsman Plumbing LLC PO Box 75375
- Dale Mcghee&sons Well DRL Inc 4409 Pleasant Hill Rd
- Davis Drilling LLC 340 NE Davis Farm 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