Local Unions West Virginia's local unions supply a highly trained and skilled workforce to meet the demands for signatory contractors. Millwrights Local 443 Teamsters Union International Association of Sheet Metal, Air, Rail and Transportation Workers United Union of Roofers, Waterproofers, and Allied Workers United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry International Union of Painters and Allied Trades International Union of Operating Engineers Laborers International Union of North America International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers International Association of Heat and Frost Insulators and Allied Workers International Brotherhood of Electrical Workers Cement Masons Local 926 The United Brotherhood of Carpenters and Joiners Boilermakers Local 667
