Prevent water ingress permanently with advanced PU Injection Grouting. Shakura Construction & Engineering are the waterproofing specialists. Shakura Construction & Engineering Pte. Ltd., Blk 942 #04-453 Jurong West St. 91 Singapore 640942. Contact us for service: +65 9647 2701 or [email protected]. https://shakuraconstruction.sg/services/pu-injection-grouting/