There are several reasons concrete slabs shift, sink, and crack. The weight of the slab often leads to sinking, but rain also washes soils away over time and threatens the integrity of the concrete. To keep this from happening, Master Services uses PolyLyft, a high-density polyurethane that expands under the slab and raises it to an even position. This driveway in Castlewood, VA was a typical job, and we were able to eliminate irregularities and cracks using our tried-and-true method.
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