KMAC, Inc. was established in 1934 as a general contractor. Throughout our last 35 years in business, we have done a variety of commercial, industrial, and multi-family building projects for small, medium and Fortune 500 Companies in five states. Twenty-eight years ago, we expanded our market area to include Gypsum Concrete Underlayments, which come in a variety of strengths and types. Today, we offer a wide variety of products and services, including sound mats, heated floor options, carpet pads, Kleets, and of course, Gypsum Concrete for our happy clients in Hutchinson, Minneapolis, St. Paul, St. Cloud, Rochester, MN, Fargo, ND, Eau Claire, WI, Des Moines, IA, and Sioux Falls, SD.