Prevent costly water damage with PU injection grouting, a top non-destructive waterproofing technique in Singapore. The grout penetrates deep into cracks and voids, then expands and hardens to create a watertight barrier resistant to hydrostatic pressure. Widely used for HDB ceiling leaks, condo balcony-to-room seepage, basement dampness, and retaining wall repairs. Application is pre... https://shakuraconstruction.sg/services/pu-injection-grouting/