Shakura Construction & Engineering Pte. Ltd. offers professional PU Injection Grouting to restore waterproofing integrity in damaged concrete. Our expanding polyurethane foam seals cracks tightly, preventing further leakage. Find us at Blk 942 #04-453 Jurong West St. 91, Singapore 640942. Contact +65 9647 2701 or [email protected] for trusted waterproofing services. https://shakuraconstruction.sg/services/pu-injection-grouting/