Sink Leaking Under the Cabinet? What Singapore Homeowners Should Know

The Hidden Danger of Under-Sink Leaks

Unlike a leaking tap, which is visible and obvious, an under-sink leak is often hidden behind closed cabinet doors. By the time you notice the water, it may have already soaked into the wood or particle board of your cabinets, causing them to swell, warp, and eventually rot.

In Singapore, many kitchen cabinets are made of materials that are sensitive to moisture. A persistent leak can lead to a musty smell and even attract pests like cockroaches and ants who are drawn to the damp environment.

1. Common Sources of Under-Sink Leaks

To fix a leak, you first need to find it. Under-sink plumbing in HDB and condo homes usually involves several components, any of which can fail.

Where to Look:

• The P-Trap: The curved pipe under the sink. Over time, the nuts can loosen or the washers can perish.
• Supply Hoses: The flexible metal-braided hoses that bring water to your tap. These can develop tiny pinhole leaks or leak at the connections.
• The Sink Strainer: The part where the drain meets the sink. If the putty or silicone seal fails, water will leak when the sink is full.
• Tap Connections: Water can run down the back of the tap and drip into the cabinet if the mounting is loose.
• Washing Machine/Dishwasher Connections: Many Singapore kitchens have appliances connected under the sink.

2. How to Prevent Permanent Cabinet Damage

If you discover a leak, your priority should be protecting your carpentry. Wooden cabinets in Singapore homes are often the most expensive part of a kitchen renovation.

Immediate Steps:

• Clear the Cabinet: Remove all cleaning supplies and items from under the sink.
• Dry the Area: Use a towel to soak up all standing water. A hair dryer on a cool setting can help dry the wood.
• Use a Catch Basin: Place a plastic bowl or tray under the leak until it's fixed.
• Check for Mold: If you see black spots or smell a strong musty odor, the leak has likely been there for a long time.

What to Send Us for a Faster Quote

To help us identify the source of your under-sink leak and provide a task-based quote guidance, please send these details on WhatsApp:

• Full photo of the sink area
• Clear photo of the pipes under the cabinet
• Video showing the drip (if visible)
• Photo of any water-damaged wood
• Your location in Singapore
• Preferred appointment timing

Transparent, Task-Based Quote Guidance

Replacing a simple washer in a P-trap is a quick job. However, if the entire trap assembly is cracked or if the supply hoses are corroded and stuck, it requires more time and specialized tools. By seeing your photos first, we can ensure we bring the right replacement parts to fix it in one trip.

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