Negative Injection Grouting

When water leaks from the reverse side of concrete walls, basements, or retaining structures, Sastha Enterprises applies advanced Negative Pressure Injection Grouting. Utilizing high-pressure polyurethane (PU) and epoxy resins injected through specialized packers, our technique expands into internal voids and micro-cracks, completely arresting underground seepage and restoring structural integrity without requiring destructive surface excavation.