Plumbing in the West region of Singapore

Planning plumbing in the West region

The oldest flats in the West are in its eastern towns. According to HDB Property Information, 67% of units in HDB's Jurong East town are in blocks completed in 1986 or earlier, and the median block completion year is 1983. HDB's Clementi town is close behind, with 66% of units in blocks from 1986 or earlier and a median block year of 1979. In flats this old, waste pipes, pipe sockets and water inlets may still be original or may have been patched several times. That makes choked drains, slow leaks below the floor slab and tired taps common jobs. Under HDB's Home Improvement Programme, introduced in 2007 for flats built up to 1986, the essential improvements include replacing waste pipes and pipe sockets. A precinct is only upgraded if at least 75% of eligible Singapore citizen households vote yes, so ask your plumber to check which pipes in your flat have already been replaced before you agree to a quote for drain work.

HDB's Bukit Batok town is split: 50% of its units are in blocks from 1986 or earlier and 39% in blocks from 1998 or later (HDB Property Information). Neighbours a few blocks apart can have very different pipework, so give the plumber your own block's age, not the town's. The Census of Population 2020 also shows more private homes here than in most of the West. In the Bukit Batok planning area, 17% of resident households live in condos or apartments and 3% in landed homes. In the Clementi planning area the figures are 18% and 5%. If you live in a condo, follow your MCST by-laws, and get the MCST's prior written approval before any work touches common property such as shared risers (BCA).

Most flats in the middle of the region date from the following decade. In HDB's Choa Chu Kang town, 55% of units are in blocks completed from 1987 to 1997, with a median block year of 1994. In HDB's Bukit Panjang town the share is 48% and the median is 1996 (HDB Property Information). In 2018 the HIP was extended to flats built from 1987 to 1997, and works inside each flat take about 10 working days. If your precinct is due for a poll, it may make sense to hold off on replacing pipes yourself and only fix urgent leaks. The census counts 24,202 four-room and 21,241 five-room or executive HDB households in the Choa Chu Kang planning area. Flats with more bathrooms have more water heaters, flush systems and mixers to maintain.

HDB's Jurong West town covers every era: 31% of units are in blocks from 1986 or earlier, 27% from 1987 to 1997 and 41% from 1998 or later, across 747 residential blocks (HDB Property Information). The official tables have no separate figures for Boon Lay. Wherever you live, water service and sanitary plumbing work in an HDB flat does not need an HDB permit, but it must be done by a PUB licensed plumber.

HDB's Tengah town is the newest. All 16,318 of its units are in blocks completed in 1998 or later, the earliest in 2023 and the median in 2024 (HDB Property Information). The 2020 census table has no separate figures for Tengah. Here the work is mostly fit-out rather than repair: installing water heaters, sinks and taps, and fixing leaks at new joints. Some plumbing work must still be done by a PUB licensed plumber. If you are fitting a gas water heater, the gas connection can only be done by City Energy or a Licensed Gas Service Worker. If an electric heater needs a new power point, that part needs an EMA Licensed Electrical Worker.