Connelly Mechanical Inc. was created in 1997 and over the years has  become one of the largest heating, air conditioning, sheet metal fabrication and service contractors in the Springfield area.

At CMI, we have a team of skilled and experienced craftsmen from our sheet metal fabrication shop to our service technicians in the field. CMI has the experience knowledge and technical know how to provide a total package of mechanical services.

Our experienced operations team strives to provide information and support to our field operations in an efficient and productive fashion. This allows us to provide quality construction projects completed in a timely manner.