MCA of Chicago is a membership organization that represents more than 300 union contractors who service and install technologically advanced and energy-efficient heating, air conditioning, refrigeration, and process piping systems across the region.

Our members perform the mechanical construction and service for everything from commercial and residential buildings to food-processing facilities, refineries, green energy systems, power plants, manufacturing plants, hospitals, airports, hotels, and data centers.

Membership in MCA of Chicago provides labor relations, high-quality learning opportunities, innovative safety and technology programs, legislative representation, mentoring opportunities, and professional networking.


MCA of Chicago strives to be the premier association by leading the union mechanical construction and service industry by promoting professionalism and productivity. We serve our members through:

  • Labor relations
  • Membership engagement
  • Education
  • Government and public affairs

Confused about what all of the acronyms and initialisms from around the industry mean? Look no further than MCA of Chicago’s Alphabet Soup Guide.

Member Benefits

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