Established in 1933, Spies Inc. specializes in painting and decorating services. Located in Fond du Lac, Wis., it provides a wide range of services, including sandblasting, wall covering, fine wood finishing, epoxy flooring installation and complete painting. Spies Inc. caters to factories, in-shop blasting, single rooms, churches, buildings, boat restoration, bottom painting and many more. The firm uses step/extension ladder, high lift equipment, large portable air compressors, high-pressure power washers, heavy duty sandblast and spray equipment.. Commercial Services and Residential Services