A home in New Hyde Park, NY has a large concrete driveway that has formed cracks throughout the years. The reason is that water gets below the slab and erodes the soil so that teh concrete settles. PolyLevel was injected to fill all voids and lift where it had already settled. This was the concrete was lifted back to it's original position and also protected from future settlement. We also installed Nexuspro in every crack and control joint to stop water from making it's way under the slabs, further protecting it. There is one section of sidewalk leading to the patio that had cracked and sunk, leaving a trip hazard. We were able to use PolyLevel to lift that back up and eliminate the trip hazard once and for all.