Can you install a bidet spray yourself?

Bidet installation: how a spray is fitted

A bidet spray is fitted by connecting a flexible hose to a tee valve on the toilet's water supply, then resting the spray head in a holder on the wall beside the toilet. If the hose or head is worn or leaking, you can replace both on the existing valve. The steps below are practical advice, not an official rule.

1. Shut the stop valve. Turn off the valve that feeds the spray, then press the trigger over the bowl to empty the hose.
2. Disconnect the old hose. Unscrew it from the valve and from the old spray head, with a cloth underneath to catch drips.
3. Fit the new hose and spray head. Use the washers supplied with the new set and tighten each fitting firmly, without forcing it.
4. Mount the holder. Reuse the existing screw holes where you can. If you have to drill, pick a spot well clear of any pipes.
5. Open the valve and check for drips. Turn the water back on slowly, then watch every joint and the spray head for a few minutes.

PUB's Plumbing Works page lists simple plumbing works that a handyman may do without a PUB licence. On the water service side, these include replacing or removing accessories connected to a tap, one of which is a connecting hose with a spring-loaded self-closing nozzle. Swapping the hose and spray on an existing valve falls within that item. Other regulated water service and sanitary plumbing works must be done by a PUB Licensed Plumber.

If you are unsure who to call, check whether the job suits a plumber or handyman before you book.

When you need a licensed plumber

As practical advice, cutting a new tee into the supply pipe, or adding a new water point where there is none, is pipework rather than a hose replacement. Plan for a licensed plumber if your toilet has no existing valve for the spray.

HDB's renovation guidelines for plumbing works say installing, fixing, altering, replacing or removing any water pipe must be done by a PUB Licensed Plumber, and PUB's Plumbing Works page sets the same requirement for regulated water service work outside its simple plumbing works list. HDB also discourages concealed water pipes in walls or floor finishes: the floor slab and wall must not be tampered with, and such work may cause water leakage to the unit below if not properly done.

If the spray needs a new supply point, ask the plumber how the pipe will be run and where the new valve will sit. For other jobs, see what needs a licensed plumber.

Electric bidet seats

Before a bidet seat installation, check whether there is a suitable power point near the toilet, and ask the supplier how the seat connects to the water supply. Any new pipework is work for a licensed plumber.

The Energy Market Authority (EMA) says electrical work at home, including adding, extending or replacing power points, should be carried out or supervised by an EMA Licensed Electrical Worker (LEW). EMA says electrical work in an HDB flat needs a Licensed Electrician, the class of LEW approved for loads of up to 45kVA. Every LEW carries a licence card with a photo, name and licence number, so check it before work starts.

HDB's guidelines for electrical works say additional 13amps power points need no HDB permit, but wiring must not be embedded in walls, wall plaster or other finishes. New wiring runs in surface trunking, above a false ceiling or behind carpentry instead. SP Services Form CS/5H endorsed by HDB must be submitted for testing of the new wiring.

For other electrical jobs at home, see work that needs an LEW.

HDB EASE for seniors

HDB's EASE page lists items for seniors' safety at home, and a bidet spray is one of them: up to 2 pieces, next to the pedestal pan. The eligibility rules are set out on that page, so read them before you buy and fit a spray yourself. If your household qualifies, you may be able to get the spray through the programme instead.

When you decide where the holder goes, check that the person using it can reach it comfortably while seated.

The HDB EASE programme guide explains the programme in more detail.

Leaks and toilet repairs

A dripping spray head often needs a new washer or a new head. Shut the stop valve, unscrew the hose and look at the washers at both ends; replace any that are flattened, cracked or missing. If water still seeps from the nozzle after the trigger is released, fit a new spray head. A leak from the tee valve or the supply pipe is not a hose swap, so ask a licensed plumber to look at it. For problems with the bowl, cistern or flush, see toilet repair.

Questions