Welcome to MSI: HVAC, Plumbing, Electrical, Services in Galesburg & Peoria
Mechanical Service of Galesburg, Inc., officially incorporated in 1972, was a joint venture of two of the area’s mechanical firms: Stinger Plumbing & Heating, Inc. and John R. Holt, Inc.
MSI is a full line, client-oriented mechanical contractor company that provides services to the residential, commercial and industrial markets. MSI specializes in mechanical systems, including site plumbing, heating, ventilation, air conditioning, and electrical.
Our goal is to exceed the expectations of every customer by offering outstanding customer service. Our HVAC, Plumbing and Sewer Cleaning technicians are all qualified union workers who are distinguished by their functional and technical expertise combined with their hands-on experience, thereby ensuring that our customers receive the most effective and professional service.
Providing HVAC & Plumbing Services to Peoria and Galesburg since 1972! LEARN MORE >>