John Schmitz


Value Delivered

John leads Illingworth-Kilgust Mechanical’s day-to-day operations, helping to ensure delivery of the high-quality HVAC products, systems and services that increase reliability, performance and efficiency to our customers. Through his expert oversight of all operations, he consistently demonstrates that clients can count on Illingworth-Kilgust Mechanical to complete even the most demanding projects to their complete satisfaction.


John has over 30 years of experience in all facets of HVAC applications with a specific focus on direct digital control (DDC) and card access systems, and previously served as Vice President of Illingworth-Kilgust's Controls Division. 

He is particularly skilled at building automation system (BAS) integration and open system solutions, with wide-ranging experience in estimating, system design, programming, project management, and customer relations. This has given him the experience needed to lead Illingworth-Kilgust's efforts in delivering timely, turnkey solutions to clients’ most complex challenges.

The Personal Side

John and his wife have two married daughters and six grandchildren. He enjoys spending time with the grandkids, fishing, swimming, and snowmobiling. As a retired Fire Chief with his local volunteer fire department, he continues to hold a place in his heart for the fire service and for all first responders that serve or have served.