Langenwalter Carpet Dyeing was founded in 1978 and has grown to more than 150 franchise locations in the U.S. and Canada. Langenwalter Carpet Dyeing began as a group of manufacturing chemists dedicated to developing superior chemicals and cleaners for the janitorial and carpet cleaning industry. Langenwalter Carpet Dyeing soon realized that their chemicals and cleaners were far superior to those being used in the industry. What was missing though, was the necessary training and application of those materials. Langenwalter Carpet Dyeing then introduced a franchise system in 1981 to create an innovative method and system unparalleled in the industry.