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All of the water and sanitary plumbing works/ gas works listed here do not require a permit from HDB. They are, however, subject to our technical terms and conditions.
These technical terms and conditions are specific to sanitary and plumbing or gas renovation works. Do take time to read through them even if you are familiar with the general terms and conditions for renovations in HDB flats.
* From 1 April 2018, only PUB Licensed Plumbers will be allowed to carry out water service and sanitary works. You can engage a handymen (without PUB licence) for simple plumbing works.
Ramsets/ nails/ screws used must not exceed 6mm in diameter and 40mm in penetration depth for all types of flats.
An inspection opening for future maintenance must be provided for installation of bathtubs. Weep holes must also be provided in the installation of bathtubs and shower trays.
For flats provided with concealed water pipes (originally provided by HDB), precautionary measures should be taken when drilling into walls:
Check for guidelines on replacement of sinks and wash basins.
Check for guidelines on installation of long bath/ shower tray/ spa pool.
Check for guidelines on the replacement of squat or pedestal pans in your toilets.
Check for guidelines on piping works.
*Such work is discouraged as it may cause water leakage to lower floor unit if the work is not properly carried out.
Check for guidelines on gas related works.
If you wish to change ownership of your flat without a sale (i.e. without monetary consideration), find out more about the types of ownership changes and the eligibility conditions.