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Dripping tap: what causes it and how it is fixed

7 November 2026 · 2 min read · By the Plumbees team

Most of us learn to ignore a dripping tap for a while. It is only a few drops, after all. But the drip tends to get worse, it can stain the basin, and on a water meter you pay for every drop.

Why taps drip

  • A worn washer in a traditional tap, which no longer seals against the seat
  • A worn ceramic disc or cartridge in a modern tap
  • A damaged or corroded valve seat
  • Limescale that stops the tap closing fully
  • Loose parts inside the tap body

What kind of tap do you have?

Older taps with separate hot and cold handles that turn many times usually use rubber washers. Taps that turn a quarter or half turn usually use ceramic discs. Mixer taps use a cartridge. The fix is different for each, and the right part depends on the make and model.

Can I fix it myself?

It is possible with the right tools, and a little care. Always turn off the isolation valve under the tap or the main stopcock first, and keep the plug in so that small parts do not disappear down the drain. If the parts are hard to remove or you cannot identify the make, it is often quicker to ask a plumber.

Repair or replace?

A new washer or cartridge is cheap and often solves the problem. Replacing the whole tap makes more sense if it is badly corroded, if parts are no longer made, or if you are updating the bathroom or kitchen anyway. We will tell you honestly which is better for you.

Do not forget the isolation valve

If there is no isolation valve under your tap, it is worth adding one while the plumber is there. It makes any future repair easier. See our taps, toilets and showers page, or ask for a quote.

Need a plumber in London?

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