How to Fix a Leaking Tap or Replace a Water Tap in Singapore

A leaking tap may look like a small problem, but it is a common issue found in many kitchens and bathrooms and may waste water if you don’t change it, especially for older taps that have been used for many years. Many homeowners will try to find a DIY solution or replace the tap themselves when they find the tap starts leaking.

In this guide, we will share the common causes of tap problems and explain when it is better to get help from a professional plumbing service in Singapore.

Common Tap Problems Homeowners Face

Before you start to work it out, it helps to understand what’s actually going wrong. Most tap repair jobs needed due to these four reasons.

Dripping Water Tap

A dripping tap is usually easy to identify. You may notice water dripping slowly from the tap outlet or leaking around the joint area. For minor cases, it may only be a few drops of water, but the dripping can become faster when the problem gets worse. This is usually caused by worn-out internal parts such as the O-ring or cartridge, or ageing rubber seals at the joint that no longer provide a proper seal. I you’re wondering how to fix dripping tap issue at home, the fix is often as simples as replacing the exactly same model or size faulty parts for replacement.

Leaking Kitchen or Basin Tap

Kitchen and bathroom taps are used frequently every day, so it is normal for them to develop problems after years of use. Over time, parts inside the tap may wear out, become loose or start to corrode. A leaking kitchen or basin tap is usually noticeable when you see water around the sink or basin area, or dripping underneath the cabinet. The cause may be a loose fitting, damaged internal components or ageing parts inside the tap. Understanding how to stop leaking tap problems early can help prevent water damage to your cabinets, countertops and flooring.

Faulty Angle Valve

The angle valve controls the water supply to your basin, toilet or kitchen fixture. Unlike a dripping tap, a leaking angle valve should not be ignored because it can cause continuous water leakage. A cracked or corroded angle valve can drip non stop, even when the tap itself is turned off. If you notice water pooling nearby your basin or toilet bowl, learning how to replace angle valve fittings is an essential skill.

Shower Mixing Valve Problem

Shower mixers help control the water temperature and pressure when you shower. Over time, the internal valve may wear out, causing problems such as unstable water temperature, weak water pressure or water leaking from the mixer body.

Compared to replacing a normal tap, how to replace shower mixing valve units can be more complicated because the valve is usually installed inside the wall. Proper inspection is needed to identify whether the issue is caused by the mixer valve or another part of the plumbing system.

Can you replace a tap yourself?

For many straightforward jobs — like changing a worn washer or swapping an old tap for a new one — a confident DIYer can handle the job with basic tools. However, tasks involving concealed pipework, mixing valves, or shared water lines (common in Singapore's HDB and condo plumbing systems) are best left to a licensed plumber, since incorrect installation can lead to bigger leaks or water damage claims later on.

Step to change a tap

If you're tackling a straightforward tap replacement, here's a general step-by-step approach:

Replacing a tap may look like a small job, but choosing the wrong tap size or installing it incorrectly can create more problems and waste time and money. If you are unsure about the process, hiring a professional plumber can be a more cost-effective option. They can help install the tap properly and avoid future issues.

When Should You Repair or Replace Your Tap?

Not every tap problem needs a full replacement. As a general guide:

• Repair if the tap is otherwise in good condition and the issue is limited to a washer, O-ring, or cartridge — this is usually the cheaper and faster option.
• Replace if the tap body is cracked, heavily corroded, or more than 8–10 years old, since replacement parts may no longer be available and repeated repairs become a waste of time and money.
• Replace the angle valve if it's rusted, difficult to turn, or leaking at the joint, since a failing valve can affect every fixture connected to that water line.
• Call a plumber if the leak is inside a wall, under tiled flooring, above ceiling or involves a concealed shower mixer, as these repairs usually require cutting into surfaces and re-sealing afterward.

Professional Tap Replacement & Plumbing Service in Singapore

While many minor tap issues can be fixed with a bit of patience and the right tools, some jobs call for a qualified professional — especially when pipework is concealed, water pressure is uneven, or the leak keeps coming back despite your best efforts.

A reliable plumbing service Singapore homeowners can count on will typically offer:

• Same-day or next-day appointments for urgent leaks
• Diagnosis and repair of dripping taps, leaking basins, and faulty angle valves
• Supply and installation of kitchen, basin, and shower taps
• Shower mixing valve replacement, including concealed installations
• Warranty on parts and workmanship

If your tap troubles persist after a DIY attempt, or you'd simply rather leave it to the experts, engaging a licensed plumber ensures the job is done safely, correctly, and with minimal disruption to your home.