The history of Mechanical Service, Inc. is built upon years of outstanding service to the West Central Illinois region. MSI was officially incorporated in 1972 when two of the areas most respected firms decided to join forces. Those companies were Stigner, Inc. and John Holt Plumbing and Heating. The original goal of the new company was to become a stronger provider of mechanical services to the residential, commercial, and industrial markets. The vision in 1972 was to earn a reputation for the highest quality of professional work combined with the highest ethical standards.  The goals and visions of MSI have remained the same ever since. MSI's dedicated team offers their customers the exceptional service and knowledge that can only come from years of experience.
We now have over 60 service and installation vehicles in our fleet allowing us to provide Galesburg and the surrounding area with the level of professionalism and skill that is needed in this modern age.

Mechanical Service Inc.

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Mechanical Service Inc.

Org chart

Teams

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