sink | basin leakage

The functions of a kitchen sink and wash basin are roughly the same, except that the sink is designed for washing dishes in the kitchen, while the washbasin is for hygienic purposes such as washing face and brushing teeth in the bathroom, Therefore, there are still some differences in design. For example, most of the sink materials are stainless steel, while most of the basins are mainly ceramic.

Even so, the reason for their water leakage is usually the separation of the fixing utensils used during installation and the leak-proof silicon, resulting in the failure of the leak-proof function.

Another reason for sink / basin water leakage is that the drain pipe or other accessories are similar to the basin waste trap, which has been damaged and leaked after years of use.

Sink & Basin Leakage

How to Detect and Repair Them

Do you know how to detect and repair Sink and Basin Leaks in Singapore? If not, don't worry! We'll walk you through the process step-by-step. Sink leaks are a common plumbing problem in Singapore, but they can be easily fixed if you know what to do. Keep reading to discover and repair sink leaks before they cause severe damage!

How to Identify Sink and Basin Leak?

Using Your Head

A "Head" is the static or head pressure produced by a vertical water column. The force beneath the water rises with depth. We try to fill a sink drain with enough water until it reaches the flood rim of the sink or top edge, then release it while looking at the drain beneath when testing a sink drain. This method also allows us to check an overflow drain if one exists.

Look for Signs of Water Damage in Your Sink's Base

Examine the paint for any following issues: stains, noticeable dampness, or "bubbling" finishes. Using your flashlight, take a quick look for any problems.

Turn On Your Sink's Cold Water

There's no need to use warm or hot water in place of chilly for this test instead of warm or hot since doing it for a few seconds would boost your power and water bills.

Look Under Your Sink

Take a flashlight and have a look under your sink for any leaks. There's a leak if water is pooling beneath the sink or running down the pipes. However, not every sign of a leak is as apparent.

Wipe Down All the Pipes and Connections

While the water is running, take some TP and clean any exposed connections or piping. If your TP absorbs water, you've found a leak. The most sensitive diagnostic tool in this scenario will be a dry, sticky TP that can be applied to the pipes. However, because you didn't properly dry your fingers before testing, they might be moist from sweat or because you didn't thoroughly dry your hands before checking the pipes.

Put Off the Water and Reach a Plumber

If you notice any leaks after following these steps, it's probably time to have your sink examined more closely by a plumber. All you have to do sometimes is tighten up a single connection along the way to repair a leak. However, consider hiring a professional if you don't feel competent enough to accomplish it on your own. Finding reputable, environmentally aware professionals for home repair work may be difficult in some areas; we suggest ACTIVE-PLUMBING as an alternative.

Repair The Sink and Basin Leak

Under-sink leaks are one of the most prevalent causes of cabinet or floor damage. They are, however, typically simple to identify and repair. The water causing harm to the cabinet or floor may be coming from the drainpipes, supply hoses, or even the faucet itself. When you crawl beneath the sink with a flashlight in hand, you should be able to determine its source immediately. It might be as easy as tightening a connection to narrow down where it's coming from.

Here are some ways to fix a leaking sink and basin:

Assessing The Problem

A leak might be discovered by seeing a wet cabinet or floor, or it may be a pool of standing water. You'll almost certainly notice the spray if a pressurized water supply causes the leak. You won't see the leak until you use the sink if it's coming from a drain line. Furthermore, if there's an issue with the sink drain seal, you'll have to fill up the sink and wait for its contents to settle before seeing the leak.

Fixing Water Supply Leaks

Water sprays or actively drips from loose connections or faulty pipes under pressure. Dripping occurs with compression fittings that aren't as tight as they should be due to shut-off valves. The most straightforward strategy to tighten them is to hold the valve and turn the compression nut with another wrench. Leaks originating from faucet connections that are difficult to narrow in confined spaces behind the sink are all too common. They should instead be tightened using adjustable or locking pliers rather than wrenches because they are located in small places.

Fixing Drain Leaks

Leaks from a P-trap can be caused by debris clogging the drainpipes or corrosion in the case of a metal trap. If you think one of your traps leaks after you've tightened all of the compression bolts, it's best to remove and clean it properly. If you notice any blockages in the drain line, clear them away simultaneously. Plastic P-traps may usually be manually tightened, but metal traps always require pliers for tightening. The nuts on a metal trap might become corroded if they are hard to turn; this indicates that it's time to replace the web.

Fixing Other Leaks

If you can't figure out where the leak is coming from, look for leaks in the sink drain or faucet, which only leaks as long as there's a lot of water in the sink. If you have a pop-up faucet, water could flow down the back of it and drip beneath the sink unnoticed if you have a leaking sink drain. Water may flow down the back of a pop-up type faucet and drip behind it unseen if you have a flat-top one. The type of faucet you have determines how to repair a leaking tap. It frequently calls for the disassembly and replacement of one or two gaskets or washers.


In any bathroom, leaks are inevitable, but they may be repaired without needing expert assistance if discovered early enough. Many homeowners find that with some plumbing knowledge and experience, DIY skills are adequate to handle the problem!


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  • HDB Plumbing and sanitary fixture repair, installation, and replacement for both private residential, commercial, and industrial structures
  • Plugging of pipe water leakage
  • Pipe installation
  • Manual labor or machine-assisted clearance of clogged pipes, basins, toilet bowls, floor traps, maintenance holes, and other items to free them
  • Water taps, mixer taps, piping, bottle traps, flexible hoses, sinks, basin bowls, urinal bowl covers, flush cisterns and toilet attachments may be necessary.
  • Water heaters ( instant or storage) and dustbins will be supplied and installed.
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  • Replacement of toilet flooring, shower screens, and other bathroom hardware
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