Hi We will be buying a HDB 4A soon and i am in the process of shortlisting IDs and have contacted the following so far 1) Artrend 2) Design4Space 3) J.S.R and renovation 4) WJ Design and renovation We are looking to renovate mainly the bathrooms and kitchen. Anything particular I need to look for? Any feedback on the above? Will there be any hidden costs that I need to look at?