That's true hacking is better at only additional costs of hacking and material. Better guarantee too. cuz overlaying you dun know when the existing tiles will pop I agree with Tachipanda. Most likely internal is white pvc. But at $115 pfr... it's reasonable la As for soft closing probably there is, juz that it will not be blum, China brand maybe. or can even be excel~ So charmed... u could ask for more quotes (tho i understand it's kind of a pain in the *** looking thru quotes from 10 Contractor/ID ) and ask for more details as well like what Tachipanda said. hehez Wellz here's a mini breakdown for your quote~ 1.1 can add more FOC items like Space planning, Applying for Reno permit, Interior Designing consultation, Arrangement for PUB gas pipe installation if any, Consultation on lightings, furniture and accessories, etc. D4 cant give much comments cuz need area of kitchen and bathrooms 4.5 can be cheaper F6 can ask ur ID to list down the items like double powerpoint and single powerpoint, etc and indicate the pricing for each item 7.2 tempered glass shower screen can be cheaper 10.1 $150 pfr is reasonable but do take note granite and marble countertop needs alot of maintenance alright? natural stone ma... 10.2 $250 pfr ask for more details like casement/sliding? internal coloured pvc? soft closing? probably can be cheaper by $20pfr? if its white internal pvc and cheap soft closing 10.3 $115 pfr is reasonable... 10.4 same as 10.2 K11 the free items. They are not free la~ considering the plus minus here and there in the quote~ HeheZ Hope this helps~ , Mike