Helms Polyfoam is a Mississippi based, family owned and operated, company that specializes in concrete lifting, leveling and stabilization. For pennies on the dollar, our polyurethane foam is injected under the sunken concrete, raising it back to leveled height. At the same time, the polyfoam stabilizes the area within minutes! This is the cleanest concrete lifting and stabilization process. There is no digging involved. Don't replace it. Repair it. Save up to 60% vs. replacing your concrete.