ACSMA provides a voice for union sheet metal and air conditioning contractors in Los Angeles and Kern County. ACSMA enhances the business and profitability of its members through a wide range of services. 

On behalf of its member companies, ACSMA provides representation in advocacy/legislative matters, collective bargaining, labor relations, and trust funds. ACSMA spearheads initiatives in safety and workforce development while also providing valuable contractor networking opportunities. 

ACSMA is dedicated to creating the most expert, safety focused workforce and offers its members exclusive access to a comprehensive, best-in-class education program unparalleled in the industry. ACSMA classes serve to advance the professional, technical, and managerial skills of our member contractors and their employees.