RenoJoy 6 Report post Posted October 7, 2014 Hi... is there a sure way to test that the water proofing done by the contractor is OKAY?What happens if we suspect that there's problem with it (after a few weeks, water marks and sippage outside common bathroom wall)?Can we get HDB to check? I don't want to kenna from HDB (later say I suka suka gajiao them). Share this post Link to post Share on other sites