Bathroom renovations require careful sequencing because waterproofing, plumbing, ventilation and finishes work together.
Confirm the technical scope
Use qualified professionals to determine the waterproofing system and applicable requirements for the actual room. A single wall-height rule is not a complete specification. Check approvals, licences, substrate preparation and documentation before tiles conceal the work.
Plan time without facilities
Ask for a staged schedule covering demolition, repairs, waterproofing, curing, inspections and installation. Do not assume the bathroom will be unavailable for only two or three days. Arrange alternatives before starting and include contingency for hidden damage. Detailed quotes and written variations make the financial commitment clearer; cosmetic appearance alone does not establish quality.
