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Wash basin leakage repair: hands adjusting a waste pipe under a basin
Plumber30-day warranty included

Wash basin leakage repair

Takes about 1 hr

A wet cabinet floor or a puddle under the basin usually comes from one of four places: the tap connector, the waste coupling, the bottle trap or the drain pipe joint. A verified plumber dries everything, runs water and watches each joint until the leak shows itself, then reseals, tightens or renews the washer at that point.

The repair starts from the price shown on this page. If the waste coupling or trap is cracked, a replacement is quoted and agreed before fitting. Before the visit, empty the cabinet under the basin and keep a dry cloth handy. If the leak is from the wall behind the basin, mention it while booking.

What's included

  • Tap connector, waste, trap and drain joint checked
  • Leaking joint resealed or retightened
  • Worn washers renewed
  • Water run to confirm the leak has stopped
  • 30-day warranty on the repair

What's not included

  • A new trap, waste or connector, quoted before fitting
  • Leaks inside the wall needing civil work
  • Cabinet repair from water damage

How the visit goes

  1. 1

    Dry and watch

    The plumber dries every joint and runs water to see exactly where the drip starts.

  2. 2

    Agree the fix

    You hear which part is leaking and whether a reseal or a new part is needed.

  3. 3

    Reseal the joint

    The joint is opened, cleaned, given a fresh washer or tape and tightened.

  4. 4

    Run and fill

    The basin is filled and drained a few times while the joints are checked dry.

What we need from you

  • The cabinet under the basin emptied
  • A dry cloth or towel

Questions about this service

The leak only shows when I drain a full basin. Why?

That points to the waste coupling or trap rather than the tap supply. The plumber fills and drains the basin to find it.

Will you replace the bottle trap?

If it is cracked, a new trap is quoted before fitting, or you can buy one yourself.

Is there a warranty?

Yes. If the repair stops working within 30 days, we come back and fix it at no charge.

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