Advanced PU Injection Grouting – Singapore’s Trusted Leak Fix Don’t let leaks worsen—opt for professional PU injection grouting to seal water paths permanently. This remedial technique uses high-pressure injection of polyurethane grout that reacts and expands with water, filling even hairline cracks and voids completely. Widely used for HDB ceiling leaks, condo balcony seepage, lande... https://shakuraconstruction.sg/services/pu-injection-grouting/