Get effective waterproofing with Shakura Construction & Engineering Pte. Ltd.’s PU Injection Grouting service. Our specialists use expanding polyurethane resin to fill cracks and stop leaks instantly. Find 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/