Moisture detector (moisture testing meter) against a wall with rising damp, reading high moisture content.
Moisture detector (moisture testing meter) against a wall with rising damp, reading high moisture content.

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4.0

Great rating - 4/5 (13330+ reviews)

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Recent Leak Detection reviews in London

Very professional, and knowledgable, would definitely book again!

Fix leak in washing machine and bath

£90

Great job quick and efficient

Leaking tap in the bathroom

£50

Thank you Christopher for the diagnostics!

Water leaking from under the dishwasher

£40

Hakan completed this task very well and resolved all issues.

Fix leaking sink tap and tighten loose toilet seat

£80

Great job Thank you very much

Fix a leak under the kitchen sink

£50

Really friendly and professional service. Victor asked for photos prior to assess the jobs and was knowledgeable and equipped. Fixed and completed the tasks in good time. All in all very happy with Victor’s service

Water build up in the fridge and a leaking pipe at the kitchen sink

£50

What's the average cost of a leak detector in London

£75 - £135

low

£75

median

£100

high

£135

Low, median and high bar chart distribuiton

Average reviews for Leak Detection Services in London

based on 601 reviews

4.94

578
17
3
1
2

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Recent Leak Detection tasks in London

Shower leak

£100

Earlsfield, Greater London

4th Oct 2026

We have evidence of a possible water leak from the bathroom. After longer showers, water is leaking into the adjacent kitchen, and there is a brown water stain on the bathroom wall. There is also mould in the bathroom, kitchen and bedroom. We need the source of the water ingress investigated urgently, as we’re concerned that moisture may be getting into the building fabric.

Stuart was very knowledgeable and knew what the problem was with our leaky shower straight away. Would definitely use again!

Leaky tap to be fixed

£40

Sydenham, Greater London, SE26

4th Oct 2026

Kitchen tap has been leaking and needs fixing.

Leak below kitchen sink

£200

Upton Park, Greater London

4th Oct 2026

There is a leak under my kitchen sink, droplets coming out from the pipes, may need replacing.

Need a plumber to check and fix a floor leak

£100

Stratford New Town, Greater London

3rd Oct 2026

Possible water leak under floor / damp near entrance There appears to be a water leak or water ingress affecting the floor near the entrance door. Water/moisture seems to be coming up through or underneath the flooring, and there is also visible damp/discolouration and bubbling paint at the bottom of the nearby wall/skirting. I’m not sure where the water is coming from, so I need someone to investigate the source of the leak first, check nearby pipework/plumbing, and advise what repair is required. The issue appears to be recent and I would like it checked as soon as possible to prevent further damage.

Plumber - fix leak after we turned on washing machine.

£50

Plaistow, Greater London

2nd Oct 2026

We turned on the washing machine and a leak started We’ve noticed the hose is disconnected and we’ve noticed now there’s a leak under our kitchen sink There is also a leak under our bathroom sink so we need to fixed asap

Kitchen sink leakage

£60

West Kensington, Greater London, W14

2nd Oct 2026

The water from the kitchen sink's train was slow, and it was leaking from the pipe beneath the sink.

Really pleased with the service. He was friendly and helpful, and quickly fixed the leak under my kitchen sink. Would definitely recommend him.

Waterleak, most likely drainpipe

£65

White City, Greater London, W12

18th Sep 2026

Water is leaking from the bath after having taken a shower. Most likely the drainpipe?

Great work. Fixed the drainpipe.

There is a leak on the pipes below the sink of the bathroom

£100

Lisson Grove, Greater London

17th Sep 2026

There is a leak in the pipes below the bathroom sink, I have attached a photo

He fixed the leak on time, good service

Plumber Needed to Repair Leaking Towel Radiator

£50

Strand, Greater London

17th Sep 2026

We need an experienced plumber to inspect and repair a leaking bathroom towel radiator. Water appears to be leaking from the lower valve/connection and is pooling on the bathroom floor. The Tasker should: 1. Identify the exact source of the leak 2. Repair or replace the faulty valve, fitting, or seal 3. Check both lower connections for any additional leaks 4. Test the radiator after completing the repair 5. Bring the necessary tools and replacement parts Please include labour and any required materials in your offer. We need someone reliable who can complete the repair in one visit if possible. Location: WC2E 7AH Preferred date/time: 10-2 pm Budget: £50-90, including labour and materials

Great. Very friendly

Change old leaking valve and pipe.

£85

Mitcham, Greater London

11th Sep 2026

I have an old valve that need complete replacement.

Excellent job. Great guy. Great experience and will use him in the future

Fix leak urgent!

£50

St Luke's, Greater London

5th Sep 2026

Leak under kitchen sink! Lose pipe and can’t fit it back on !

Amazing! Thank you for helping me and such short notice.

Replace Leaking Kitchen Sink Waste Trap / P-Trap

£75

Bermondsey, Greater London, SE1

17th Aug 2026

I’m looking for a plumber to repair my kitchen sink waste pipe. The existing P-trap/U-bend has come apart and I haven’t been able to refit it correctly. I purchased what I thought was the correct replacement, but it appears the fittings/washers aren’t compatible with my existing pipework. Job required: * Assess the current waste pipe setup. * Supply any correct fittings/washers if needed. * Replace and fit a new P-trap/U-bend. * Ensure all joints are watertight and test for leaks before leaving. The sink is currently unusable as the waste pipe has come apart (see photos). Please let me know: * Your availability. * Whether you’ll bring any standard 40mm waste fittings that may be required. * Your total price including any small parts. Looking to have this fixed as soon as possible.

Great job and called out straight away to us - would highly recommend

Leak in the kitchen

£100

Chingford Green, Greater London

21st Jun 2026

Kitchen Leak Investigation and Repair Required I have a kitchen leak that is appearing between the laminate floorboards. The leak often occurs after the dishwasher has been running, particularly towards the end of the cycle when it is draining. I am looking for someone with plumbing experience to investigate the source of the leak and carry out any necessary repairs.

Yilnas did an excellent job. He quickly identified the source of the leak and repaired it efficiently. He was professional, polite, courteous, and clearly knew what he was doing. I would happily recommend him and would not hesitate to use his services again.

Plumber to repair leak

£120

Catford, Greater London, SE6

11th Jun 2026

Leak under kitchen sink. Water is pooling at bottom of cabinet but cannot locate leak

Stuart did an excellent job from start to finish. His communication was great, and he was extremely punctual, friendly, and professional throughout. He worked efficiently, quickly sourced the parts needed, and was careful in ensuring the dishwasher was fitted back correctly. I would definitely recommend Stuart and wouldn’t hesitate to book him again in the future.

Fix leaking bathroom tap. Probably needs a new washer

£30

Hounslow, Greater London, TW3

12th May 2026

Bath tap is leaking when fully closed

Lon arrived on time and quickly identified the problem. He was able to fix the issue without me needing to buy a new tap. Was polite and courteous. Would definitely recommend and will be using again.

Leakage on below side of toilet seat.

£50

Norbury, Greater London

24th Apr 2026

Its leakage on the below side of toilet seat Need plumber who can fix this Thanks

Amazing and efficient work

Plumber to I nvestigate leak from kitchen sink

£60

Balham, Greater London

11th Apr 2026

There is a slow leak coming from the kitchen sink which I don’t know how to fix and would like some help from a plumber.

Efficient, punctual and fixed the problem quickly.

Toilet is leaking

£150

Plaistow, Greater London, E13

6th Apr 2026

Toilet is leaking. It needs fixing Budget is for labour only and the materials will be provided depending on the problem

Friendly and did the job as required