International Sheet Metal Union

Established in 1903 sheet metal workers local 105 resulting from the merger of local 108 and local 102 serves the southern california counties of los angeles orange riverside san bernardino kern inyo and mono. Smart the international association of sheet metal air rail and transportation workers is one of north america s most dynamic and diverse unions with 203 000 members. The sheet metal workers international association was a trade union of skilled metal workers who perform architectural sheet metal work fabricate and install heating and air conditioning work shipbuilding appliance construction heater and boiler construction precision and specialty parts manufacture and a variety of other jobs involving sheet metal.