UA Local 401

Welcome to UA Local 401

We are one of the most respected and influential building trade Locals in Ontario dedicated to excellence in Plumbing, Steamfitting and Welding.

Both historically and presently we have prided ourselves on "Doing It Right, The First Time". This means our members are dedicated to the quality of our work, and speaks directly to our objective of ensuring excellence within our trade.

The United Association prides itself by training the best and most qualified pipe tradesmen for longer than anyone else in the industry. As such, we the members of the UA are proudly backed and continue to foster premier training programs that include five-year apprenticeship programs, extensive journeyman training, organized instructor training and certification programs.



UA Local 401 Election Ballot Tally


Notice to all members working in the ICI Sector

Member News

Local News

Posted: August 8, 2022 Apprenticeship Intake 2022 ››

Posted: May 7, 2014 Members Only Section ››