A homeowner in Gibbsboro, New Jersey was noticing their sidewalk was sinking and settling. When concrete is poured over backfilled soil, the soil settles over time and creates a void under the concrete. As water runs down through the cracks, it washes the soil out as it passes through. The homeowner called Quality 1st Basement Systems and our System Design Specialist, Joe Mancini, was able to help them fix this issue. He suggested a polyurethane foam to be injected in the concrete. Our foreman, Luis Aguirre, used the PolyLevel System to lift and stabilize the concrete. This is done by drilling small holes into the slab and injecting the foam into the voids, causing the concrete to level back to its original position.