The Mechanical Contractors Association of New York, Inc. (MCA) is the voice of the Mechanical and Sprinkler Contracting Industry in New York City and Long Island. From educational opportunities to legislative initiatives MCA works to advance and develop the heating, piping, air conditioning and fire suppression industry. Since our formation in 1885, we continue to promote the competence, cost-effectiveness, and productivity of union construction and service, through training, education, and labor relations.