A-1 Concrete Leveling & Foundation Repair is a leading provider of concrete leveling, repair, and other services for home and business owners in Northern Illinois. Our team of experienced professionals uses patented technology to lift and level concrete slabs, repair sinking foundations, and straighten bowed basement walls. We also specialize in crack repairs, waterproofing, and excavation services. With over 20 years of experience, A-1 Concrete Leveling & Foundation Repair is the original concrete leveler in the area, serving communities in Cook, DeKalb, Dupage, Kane, Kendall, and Will counties, including Aurora, Elgin, Naperville, and others.