Quality 1st Contracting uses a Polyurethane foam known as PolyLevel that is injected underneath the slab to raise and level without replacement. This installation is clean and easy causing no disturbance to the surrounding areas. It is important to know that concrete sinks because the soil underneath is either too wet or too dry making it weak. It's never the slab but the soil holding the slab that is causing that settlement in the first place therefore replacing the concrete it not always a permanent solution.
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