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Mechanical Contractors Association of Indiana contractors are the most qualified contractors in the mechanical construction industry, which includes plumbing, medical gas, refrigeration, water treatment, piping, design & build, and HVAC. Whether your project is big or small, you will be able to find the right contractor here to perform and provide the best quality work for you.

Search our membership directory to find a contractor you can really depend upon to complete the job with cost-effectiveness, productivity, quality, and value.
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The Mechanical Contractors Association of Indiana, Inc. is a statewide trade association established to represent and service its members in the mechanical industry. It acts as the industry’s voice in dealing with the public, state and local government, other construction industry groups, and labor. Unlike most other trade associations, the primary focus of MCAI is education, labor relations, and multi-employer collective bargaining.


Categories of Membership in MCAI Regular Membership in the Association is available to partnerships, corporations, and sole proprietorships who are regularly engaged in the mechanical contracting business, who have established places of business and who employ labor for the prosecution of such business. Since its origin, all regular members of the Association have been contractors who employ members of the United Association of Plumbers and Pipe Fitters (U.A.). Associate Membership in MCAI is generally available to firms or individuals having a direct interest in the mechanical contracting industry. Examples include, but are not limited to, mechanical equipment manufacturers, manufacturer’s representatives, wholesalers, and service providers. Associate Membership in MCAI is also generally available to contractors and subcontractors who are involved in certain aspects of mechanical system installations, but not fully qualifying for a regular mechanical contractor membership. In joining as an associate member, these contractors are demonstrating their interest in and support for the goals and objectives of MCAI. Examples include, but are not limited to, sheet metal, temperature control, sprinkler, and installation contractors, etc.


Local Chapters Within MCAI there are five local chapters who meet on a regular basis and carry on much of the business of the association. These chapters are known as MCA-Indianapolis Area (Indianapolis, Kokomo, Muncie, Anderson, Richmond Area), Fort Wayne Area MCA (Ft. Wayne, Marion, Elkhart, Angola Area), Wabash Valley MCA (Terre Haute, Lafayette Area) St. Joe Valley ( South Bend, Mishawaka Area), and the MCA of Southern Indiana (Evansville, Bloomington Area). Each of these chapters is engaged in multi- employer negotiations and has a current collective bargaining agreement with their respective United Association local union.


Two Service Bureaus MCAI operates two affiliate organizations which provide additional services to the mechanical construction industry. Each has separate membership and financing. Indiana Chapter 14 of the National Certified Pipe Welding Bureau (NCPWB) promotes quality welding in the pipe fitting industry at reduced costs through an interchange of welders and development of welding procedure specifications. The Service Contractors Association (SCA) provides assistance to contractors and service managers of those firms involved in H.V.A.C. service and maintenance.


National Affiliation with MCAA  MCAI is closely allied to its national counterpart, the Mechanical Contractors Association of America, located near Washington, D.C. All regular members of MCAI are also members of MCAA. A large contingent of MCAI members regularly attend the MCAA Annual Convention usually held in March of each year. MCAI has also supported three (3) of its members to become presidents of MCAA (H. Jack Baker, 1974, James A. House, 1990, and Steve Dawson, 2015)


Services Provided by MCAI Represents members in all labor relations matters including negotiation, grievances, apprenticeship training and benefit plans; Legislative and governmental affairs representation before state and local bodies; Represents member interests to owners, architects, engineers, general contractors, subcontractors, and others involved in construction; Educational programs are provided to the members and their employees.

St. Joseph Valley
Ft. Wayne MCA
Wabash Valley MCA
MCA Indianapolis Area
MCA of Southern Indiana
Mechanical Contractors, HVAC
At Large At Large MCA Indianapolis Area MCA of Southern Indiana MCA Indianapolis Area Wabash Valley MCA Fort Wayne MCA St. Joseph Valley At Large