Jurisdiction

The United Association has represented hardworking, highly skilled men and women in the Plumbing, Pipefitting and HVAC/R industries since 1889.

The skilled Plumbers, Pipefitters, HVAC/R Mechanics and Metal Trades Workers of the United Association are among the best trained and safest skilled tradespeople working in the building industry today. Our contractors and members are actively engaged in plumbing and pipefitting installation, repair, service and maintenance of all types of piping systems and equipment from large industrial plants to small unitary sytems. 

King County Jurisdictional Map+

Olympic Peninsula Jurisdictional Map+

Eastern Washington Jurisdictional Map+

WA Plumbing Code
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