The Leadership and Members of United Association, Local 21, would like to welcome you to our website where you can find a great deal of information about us. The Plumbers, Steamfitters, and HVAC Service Technicians of Local 21 work on projects of all shapes and sizes. We are actively working at the IBM Plant in Fishkill, the Nuclear Power Plant at Indian Point, and on high rise luxury apartment building such as those in New Rochelle and White Plains. We work on our areas educational institutions such as: elementary schools, high schools, colleges and universities, both in the public and private sector. We can also be found working on industrial and commercial facilities of all sizes as well as residential developments and private homes. Plumbers and Steamfitters Local 21 is vital to many industries throughout the Hudson Valley and it's because of our highly skilled workforce. We are over 1,500 members strong and growing. We pipe a 4 county area within our Jurisdiction and we are always looking for the best and brightest that our region has to offer. You can click on the Organizing and Apprenticeship pages to learn more about how to join our great organization.