Illingworth-Kilgust Mechanical, a wholly owned subsidiary of EMCOR Group, Inc., combines two leading mechanical contracting firms – Illingworth Corporation of Milwaukee and Kilgust Mechanical of Madison – into one of the largest and most experienced companies of its kind in Wisconsin.

With over 120 years of combined HVAC and mechanical services experience, Illingworth-Kilgust Mechanical provides clients statewide with the total mechanical solutions they need to meet their facilities' full lifecycle requirements. Learn about us.

By integrating our strengths, we can offer a wider range of mechanical construction expertise and a broader array of commercial heating and cooling, plumbing systems, building automation systems design/build, and facilities services to more clients across Wisconsin than ever before. Learn more.

We will be moving offices on May 11, 2012.

Our new office address will be:
11217 West Becher Street
West Allis, WI 53227

Please note that our phone numbers will be staying the same.

Dan Pfeifer, President, is just one of the many people that deliver high performance projects that meet our clients most exacting standards.

Meet the rest of the team.