Expert PU injection grouting is widely used to repair water seepage in basements, lift pits, and car parks. The injected PU foam reacts with moisture and expands to fill voids and micro-cracks. This stops water flow and strengthens the affected area. PU injection grouting ensures reliable, long-term waterproofing without major demolition work. https://shakuraconstruction.sg/services/pu-injection-grouting/