Concrete cracks are inevitable, but water damage doesn't have to be. Our PU injection grouting services are engineered for heavy-duty structural repair in RC roofs, retaining walls, and water tanks. The injected polyurethane remains flexible after curing, allowing it to move with the building’s natural expansion and contraction without cracking. This ensures a long-term seal even in h... https://shakuraconstruction.sg/services/pu-injection-grouting/