About John's

We specialize in the design, fabrication, installation and maintenance of mechanical HVAC and plumbing systems. Our mission to our clients is to provide superior workmanship and outstanding customer service through honesty and integrity.

Since 1962 John’s has completed projects from thousands of dollars to over 2 million. We are comfortable performing work for commercial, institutional, industrial and municipality sectors just to name a few.

One of the leading mechanical contracting firms in the Midwest, Johns Service and Sales is headquartered in Oglesby, Illinois. We perform work throughout Illinois, Indiana and Michigan.

We employ over 60 people, primarily Union members of the Plumbers and Pipefitters, Sheet Metal Workers International and Operators.