This homeowner in Mount Holly, New Jersey noticed their concrete sidewalk was sinking and becoming unlevel. This happens because the combined weight of concrete and what it supports causes concrete to become unlevel. This causes the soil beneath the concrete to shrink. Our System Design Specialist, Alvid Reed, suggested they used PolyLevel Injections, which are injected underneath the slab to bring it to a level position. Our foreman, Ramon Romero, used PolyLevel and within 20 minutes, the concrete was safe to walk on.