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Fix SoonCommon in JanRecommended trade: Plumber

Leaking Pipe Under Sink

A visible drip or pool of water under the kitchen or bathroom sink, often noticed by damp in the cupboard below.

What Is Causing This?

  • 1Loose compression fitting or connector
  • 2Corroded or cracked pipe
  • 3Worn seal on the waste trap

How Urgent Is This?

Fix Soon

This should be fixed in the coming weeks. Leaving it may allow the problem to worsen and cost more to repair.

What Needs to Be Done

A plumber will identify the leak source, tighten fittings, or replace the damaged section of pipe or waste trap. They will check for water damage to surrounding areas.

How Much Will It Cost?

£446 – £1,450

National average estimate

Labour: £246 – £620 | Materials: £200 – £830

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Prices are estimates based on typical UK rates. Actual costs depend on the specific issue, accessibility, and your location. All quotes from tradespeople on Tradesfolk are completely free.

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How to Prevent This

Check under sinks periodically for moisture. Avoid hanging heavy items from pipes. Replace flexible connectors before they show signs of wear.

Related Problems

Other Plumber Problems

Frequently Asked Questions

What causes leaking pipe under sink?
Loose compression fitting or connector. Corroded or cracked pipe. Worn seal on the waste trap.
Is leaking pipe under sink serious?
This should be fixed in the coming weeks. Leaving it may allow the problem to worsen and cost more to repair.
How much does it cost to fix leaking pipe under sink?
Our illustrative trade-wide planning range is £446 to £1,450 and is not a diagnosis-specific quote. The actual repair may fall outside this range. Get a free quote from a local plumber on Tradesfolk.

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