Shakura Construction & Engineering specializes in highly effective PU Injection Grouting to permanently seal ceiling, wall, and concrete slab leaks. Our guaranteed method stops water ingress at the source. Call us at +65 9647 2701 ([email protected]). Address: Blk 942 #04-453 Jurong West St. 91, S(640942). https://shakuraconstruction.sg/services/pu-injection-grouting/