Local 159 was founded on April 3rd, 1915 in Martinez, California. 90 years later, our offices are still headquartered in Martinez where we have our union hiring hall, Journeymen and Apprentice Training facility and assembly hall. With over 650 members and over 100 union contractors, we provide skilled plumbers, steamfitters, HVAC Refrigeration technicians and service plumbers for work in Contra Co
sta County and beyond. Currently there are over 300 local unions in the United Association, with in excess of 340,000 members. Members are free to travel from one local area to another to satisfy the needs of local work conditions. Founded in 1889, the United Association is one of the most respected and influential building trades unions in the U.S. and Canada today. It serves as a collective voice for workers through negotiation and collective bargaining with employing contractor groups, such as the Mechanical Contractors Association of America, and the National Association of Plumbing-Heating-Cooling Contractors. The UA is also a key member of the Building and Construction Trades Department, the AFL-CIO, and the Canadian Federation of Labour.
