Congratulations on the purchase of your asset.
You don’t need to conduct any further waterproofing work on fully new fitouts (properties purchased straight from a builder, realtor, or developer within three months of the conclusion of construction), unless you’re changing the builder’s original design layout for the structure.
If you intend to renovate your apartment, we advise you to visit a waterproofing specialist before spending money on your idealized look.
For pre-owned property (that is, property bought from someone other than a builder, broker, or developer), seek a professional waterproofing opinion.
You should also have your property inspected carefully for leaks, seepage, or moisture.