Plumbing contractors in Washington
2,266 active plumbing contractors are registered with Washington L&I. 4,450 registrations are on record in all, including expired and other statuses.
200 of the active plumbing contractors registered in Washington are based in other states.
All 4,450 registrations on record
Businesses by registered name and license number. Show only the 2,266 active registrations.
- WEST PLUMBING LLCACTIVE
Coupeville, WA · License WESTPPL776DP · Registered 3 years
Poulsbo, WA · License WESTSSC778J6 · Registered 3 years
Poulsbo, WA · License WESTSSP797MK · Registered 5 years
Longview, WA · License WESTEEP748B6 · Registered less than 1 year
Kent, WA · License WESTEMC743DO · Registered less than 1 year
Bothell, WA · License WESTESF794O9 · Registered 4 years
- WESTSIDE PLUMBING LLCACTIVE
Tumwater, WA · License WESTSPL792NP · Registered 5 years
Blaine, WA · License WHATCEP785OR · Registered 4 years
- WHITE KNIGHT PLUMBINGACTIVE
Olympia, WA · License WHITEKP798P9 · Registered 4 years
- WHITE OAK PLUMBINGACTIVE
Vancouver, WA · License WHITEOP761J3 · Registered 2 years
- WHITE PLUMBINGACTIVE
Dayton, WA · License WHITEP*788C8 · Registered 3 years
- WHITELAW PLUMBING LLCACTIVE
Bellingham, WA · License WHITEPL781B7 · Registered 4 years
- WICK'S PLUMBING LLCACTIVE
Arlington, WA · License WICKSPL758DS · Registered 1 year
Milton Freewater, OR · License WIDNEEI795RG · Registered 4 years
- WILDROSE MECHANICAL LLCACTIVE
Issaquah, WA · License WILDRML785D4 · Registered 4 years
- WILL DO PLUMBING INCACTIVE
Port Angeles, WA · License WILLDDP794MK · Registered 5 years
- WILLIAM LEONARD LLCACTIVE
Seattle, WA · License WILLILL790P9 · Registered 4 years
- WILLIAMS MECHANICAL INCACTIVE
Everett, WA · License WILLIMI795MF · Registered 5 years
Moses Lake, WA · License WILLIPM743C6 · Registered less than 1 year
- WILLIAMS PLUMBING LLCACTIVE
Arlington, WA · License WILLIPL7433J · Registered less than 1 year
- WILLYPLUMB LLCACTIVE
Yelm, WA · License WILLYL*751O5 · Registered 1 year
Carson, WA · License WINDMMP782NA · Registered 4 years
- WISDOM PLUMBING LLCACTIVE
Shelton, WA · License WISDOPL764QQ · Registered 1 year
- WISE ENTERPRISES LLCACTIVE
Bellingham, WA · License WISEEEL784NC · Registered 4 years
Colbert, WA · License WJPLUPM775D9 · Registered 3 years
- WM H REILLY & CO INCACTIVE
Portland, OR · License WMHREHR834OQ · Registered 8 years
- WOLCOTT PLUMBINGACTIVE
Troutdale, OR · License WOLCOP*780KB · Registered 4 years
- WOLF INDUSTRIES INCACTIVE
Battle Ground, WA · License WOLFIII766P8 · Registered 1 year
- WOLF PLUMBING LLCACTIVE
Rathdrum, ID · License WOLFPPL771P6 · Registered 2 years
Boring, OR · License WOLFEPM752C4 · Registered 1 year
- WOLFE PLUMBING INCACTIVE
Everett, WA · License WOLFEPI794MB · Registered 5 years
- WOLFER'S HOME SERVICESACTIVE
Wilsonville, OR · License WOLFEHS749MB · Registered less than 1 year
- WOLFF WATER HEATERS LLCACTIVE
Snohomish, WA · License WOLFFWH780BO · Registered 4 years
- WOMACK PLUMBING INCACTIVE
Vancouver, WA · License WOMACPI797NB · Registered 5 years
- WOMBAT PLUMBING LLCACTIVE
Gig Harbor, WA · License WOMBAPL784PC · Registered 3 years
- WOODS CREEK PLUMBING INCACTIVE
Oldtown, ID · License WOODSCP794NR · Registered 4 years
- WOODY'S PLUMBING NW LLCACTIVE
Arlington, WA · License WOODYPN777C2 · Registered 3 years
- WORTHINGTON PLUMBING LLCACTIVE
Shelton, WA · License WORTHPL788DA · Registered 2 years
- WRAY PLUMBINGACTIVE
Ponderay, ID · License WRAYPP*796MF · Registered 5 years
Kirkland, WA · License WRIGHCP752LO · Registered 1 year
Port Angeles, WA · License WRIGHBS758MG · Registered 1 year
- WYE MECHANICAL LLCACTIVE
Chelan, WA · License WYEMEML746L9 · Registered less than 1 year
- Wahl Plumbing LLCACTIVE
Spokane, WA · License WAHLPPL797R1 · Registered 4 years
- Western Mechanical I IncACTIVE
Port Orchard, WA · License WESTEMI785L7 · Registered 4 years
Issaquah, WA · License WHITEKF798MG · Registered 5 years
- X-FIREACTIVE
Bellingham, WA · License XFIRE**784QN · Registered 3 years
- XPLORE PLUMBING LLCACTIVE
Seattle, WA · License XPLORPL753CF · Registered 1 year
Meridian, ID · License XPRESCS764UM · Registered 2 years
Lakewood, WA · License YELLOSK765B9 · Registered 2 years
Olympia, WA · License YELMPPP778C2 · Registered 3 years