Hi toot, I engaged them and Alan Tan is my in charge. So far so gd, workmanship not bad too. they are not so pushy type and we feel comfi with him. If there is error in the measurement or anything (example my common toilet show screen is too small), i actually notified him and he retified on the length the following day. I feel the comfi and basic trust level btw customer and contractor is impt too. That's why we decided to engage his service and till now we are never regreted on our choice