We only install our proven, environmentally friendly polyurethane foam. Our foam has been USDA Certified for its Biobased content. A permanet product for your concrete lift project.  Unlike the mixture of soil, water and aggregate used in Mud-Jacking (concrete slurry), Polyurethane Foam is not affected by the elements of water, ice and is rated for both hot and cold temperatures. Our foam will not breakdown like the concrete slurry. Weighing only two pounds, compared to the slurry's one hundred pound mass, our foam is proven to provide the strength necessary to lift and support bridge and highway slabs. Compressing the soil as it expands, our foam then fills voids in the soil, a distinct contrast to the concrete slurry. The concrete slurry relies on its weight alone to push down the already jeopardized soil and can still leave failure-leading voids. Our Polyurethane Foam is a permanent, safe and green product for concrete repair work.