I am thinking of renovating both my HDB toilet. I am staying in a 5 room HDB, 110sqm. 1. To overlay master bathroom flooring and wall tiles without replacing the toilet bowl 2. To overlay common bathroom flooring and wall tiles without replacing the toilet bowl Any tiles expert, kindly advice whether this is the reasonable price? Contractor give me a quotation of $11,000 just to overlay without any hacking job to be done. My budget is $7000 to overlay. Any BIG PRICE difference if I go for hacking of the toilet floor and wall tiles and replacing new toilet with water proofing? What is the BIG difference between the 2?