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Con-Cor Company is a professional sawing & drilling company that began in the early 1960s, using core drills and 3” diameter diamond-tipped bits. In the beginning…

Con-Cor began using pavement saws in the early 1970s. Pavement saws were used for sawing small jobs in the beginning, but flat sawing is now widely used in the repair…

Hidden objects inside concrete can create costly delays and serious safety risks. Con-Cor provides ground penetrating radar (GPR) concrete scanning to help identify what is inside the slab before work begins…

Our showroom displays a wide variety of concrete sawing & drilling equipment. Scott, our Parts Manager, can answer any and all questions to ensure you have…

In addition to our contracting services and extended line of equipment, Con-Cor also features an expert service department and a well-stocked parts warehouse.

Con-Cor Company, Inc. began in 1959. One of the founding partners, John Polzer entered the Company in 1966. Con-Cor started with one office in Butler, Wisconsin, and a second shortly after, in Des Plaines, Illinois. The concrete cutting theory was new to the Construction Industry. Our first large-scale job was at O’Hare Field, Core Drilling for the runway expansion lighting in 1969.

This type of runway lighting was a developmental design with light fixtures embedded in the concrete. Con-Cor designed a core drill rig that could power  a 12” bit that could drill through 15” of solid concrete runway and then remount a 24” bit to countersink a 5″ deep hole around the 15″ hole, to recess the light fixtures.