PU Injection Pressure Grouting

Our polyurethane injection pressure grouting service is the most effective solution for sealing active water leaks, voids, and cracks in concrete structures. We inject hydrophilic or hydrophobic PU resins under controlled pressure, which react with water to form a flexible, watertight foam or gel that permanently seals the leak path. This technique is ideal for basement leaks, tunnel waterproofing, pipe penetrations, and concrete crack repair where excavation is not feasible. Our technicians use specialized injection pumps and packers to ensure complete penetration and lasting sealing even under hydrostatic pressure.