Our unique void filling process includes the controlled fill of a void using an expansive polymer injected through your concrete or from the side of the concrete. This process eliminates the area of washed out soils below the concrete while sealing any cracks in the concrete and sealing any storm drains that may have been leaking. Stopping water penetration that leads to soil erosion. Apex’s system treats the soils and addresses the water and erosion issues. 

Until recently, mudjacking/compaction grouting has been the method more commonly used for filling voids below concrete and is still a widely acceptable form of restoration. While mudjacking and polyurethane injection can achieve similar results, at least initially, the process by which those results are achieved and the extended performance of the two products are completely different.