PU injection grouting is Singapore's preferred no-hack waterproofing technique for urgent and chronic leaks. By injecting polyurethane that expands on water contact, it creates a tough, elastic plug that blocks pathways permanently—ideal when access is limited or demolition is impractical. It addresses inter-unit seepage in condos, ceiling stains from hidden pipe bursts, basement grou... https://shakuraconstruction.sg/services/pu-injection-grouting/