About

Mechanical Service of Galesburg, Inc., (“MSI”) is a family owned company officially incorporated in 1972 as a joint venture of two of the area’s top mechanical firms: Stigner Plumbing & Heating, Inc. and John R Holt, Inc.

On June 1, 2013, MSI purchased Du-Mont Company of Peoria, IL. With this acquisition, MSI now has a sheet metal fabrication shop located in Peoria to go along with our already established process piping fabrication shop in Galesburg.

MSI is a full line, client-oriented mechanical contracting company that provides services to the residential, commercial and industrial markets. MSI specializes in mechanical systems including plumbing, heating, ventilation, air conditioning, and electrical. MSI provides service 24 hours a day.

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Recommend MSI to everyone

My geothermal heating and cooling system was not doing it’s job. It was not too hot in August so we were able to get by without air conditioning for a few days. I called MSI and explained the problem. They had a service tech in the area and he was here within an hour. He… Read more “Recommend MSI to everyone”