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. Our members are part of the building and construction trades. In shops, we layout, fabricate, and assemble sheet metal products. In the field, we install these sheet metal products in buildings and on construction projects.