STL Polyjack is a leading foundation repair company specializing in polyurethane injection in St. Louis. STL Polyjack offers concrete lifting & leveling services ( polyjacking / slabjacking), void space and sinkhole filling services, soil stabilization services, driveway and warehouse floor caulking/ joint protection services, sea wall void fill / stabilization services, sidewalk trip hazard repair services, water proofing / leak sealing services and much more. All services are base on superior polyurethane products that are safe for the environment and incredibly long lasting!