For durable crack sealing, Shakura Construction & Engineering Pte. Ltd. offers high-quality PU Injection Grouting using professional equipment and certified materials. Our solutions strengthen structures and prevent recurring leaks. Contact us at Blk 942 #04-453 Jurong West St. 91 Singapore 640942, call +65 9647 2701, or email [email protected] . https://shakuraconstruction.sg/services/pu-injection-grouting/