Uneven concrete slabs happen when washed out or poorly compacted soil occurs below the concrete. If the concrete slabs are too thin and brittle, removal and replacement is necessary, but in most cases, there can be a better solution.
Mudjacking is a common solution used but this can be messy and creates many large holes in the concrete and it's heavy which puts more weight on the soil below and often makes the problem worse.
Instead, Caney Foundation Specialists uses PolyLEVEL. PolyLEVEL requires fewer holes in the concrete. High-density polymers are injected under the slab. After the void is filled, the polyurethane expands which creates a precise lift and stabilization of the slab. The polyurethane is lightweight, has a high-capacity lifting strength, can be driven on in only 15 minutes, and it won't break down or deteriorate underground.