Epoxy Systems, Inc. Waterproofing, is your premier local foundation and basement waterproofing & crack sealing contractor serving the greater Chicago, IL metro area as well as the South Suburbs and Northwest Indiana. With more than 28 years of professional experience, you can count on our skilled and knowledgeable crew to provide a higher standard of service and truly exceptional results. Epoxy injection, a top choice of structural engineers, provides a permanent watertight seal that is sure to stand the test of time.