Shakura Construction & Engineering offers advanced PU Injection Grouting for HDB flats, condos, factories, and commercial buildings. Our waterproof resin expands to block water flow and protect your structure. Visit Shakura Construction & Engineering Pte. Ltd., 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/