Plumbing contractors in Seattle, WA

105 active plumbing contractors are registered with Washington L&I at a Seattle, WA address. 212 registrations are on record in all, including expired and other statuses.

105 active registrations

Businesses by registered name and license number. Show all 212 registrations on record, including expired.

WATERACTIVE
License WATER**762J2 · Registered 2 years
WATERTITE PLBG HTG & SEWER LLCACTIVE
License WATERPH797NG · Registered 5 years
WESNOR PLUMBING & HEATING LLCACTIVE
License WESNOPH794RW · Registered 4 years
WILLIAM LEONARD LLCACTIVE
License WILLILL790P9 · Registered 4 years
XPLORE PLUMBING LLCACTIVE
License XPLORPL753CF · Registered 1 year
ZESBRO PLUMBING LLCACTIVE
License ZESBRPL787BR · Registered 4 years