PU injection grouting offers a non-destructive way to repair water leaks. There is no need to hack large areas of concrete or tiles. Small holes are drilled, and the polyurethane resin is injected under pressure. PU injection grouting then expands and seals the crack completely. This method saves time, reduces mess, and delivers professional waterproofing results. https://shakuraconstruction.sg/services/pu-injection-grouting/