There are several differences between PolyLevel and mudjacking - the material used, the installation process, and of course, the results. Mudjacking material is made up of a mud-cement-slurry mixture while PolyLevel is a lightweight, strong high-density polyurethane foam. Mudjacking requires a messy, disruptive installation process and larger port size than PolyLevel polyurethane foam. And finally, mudjacking doesn’t address the underlying issue (stability) as well as PolyLevel does. Concrete sidewalks sink and crack due to the soil below expanding, contracting, washing out and leaving voids into which the heavy concrete slabs sink. Mudjacking material is heavy, adding more weight on top of the already unstable soil, and is susceptible to the same issues of wash out and void creation. PolyLevel is waterproof, so it won’t wash away or degrade over time. During installation, the expanding foam not only raises concrete slabs, but also compacts the soil around it, adding stability to help prevent future sinking and settling. You can read more about PolyLevel vs. mudjacking here on our blog.