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

I’m very happy with the service I received. Patrick came promptly to repair a leaking wash basin drain and did an excellent job. The repair was carried out quickly, professionally, and with attention to detail and the work area was left clean and tidy. I really appreciate the friendly and reliable service.

Wash basis drain is drip leaking

£40

Amazing work !! fixed my leak and installed my new bidet. Quick work no time wasting and to point of fixture. Definitely will hire him again when needed. He definitely knew what he was doing. Thank you so so much

Stop a leak from my bidet pipe

£70

Quick and efficient

Wash machine leak

£50

Highly recommended. Great communication. Got a difficult job done.

Fix leaking bathroom tap (tap over bath)

£50

Quick, friendly and great work

Bath waste pipe disconnected from plug hole and leaking

£150

He is punctual and done the job on time

Need a plumber to fix the water leakage

£50

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

£75 - £138

low

£75

median

£100

high

£138

Low, median and high bar chart distribuiton

Average reviews for Leak Detection Services in London

based on 627 reviews

4.95

604
17
4
1
1

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Recent Leak Detection tasks in London

Fix leak in toilet behind toilet seat.

£50

Monks Orchard, Greater London

4th Nov 2026

There has been a leak in toilet behind toilet seat.

URGENT: Plumber needed TODAY – Bathroom leaks & shower repair !!

£10

Bromley, Greater London

4th Nov 2026

I am looking for a reliable plumber or experienced bathroom handyman to come out today. This job combines a couple of immediate small fixes with a larger shower repair. Great opportunity for a solid half-day/day rate. We are ready to assign and pay promptly for the right person. Task Breakdown Part 1: Quick Fixes (Immediate Priority) Toilet Cistern Leak: Repair leak on the inlet pipe going into the toilet cistern. Restore Water Supply: Turn water back on to the toilet and sink (currently capped off) and carry out a thorough leak check. Part 2: Shower Repairs (Larger Job) Shower Tray Support: Shower tray is not sitting properly on its wooden support structure and needs to be leveled/repaired securely. Shower Waste/Trap Leak: Fix leak on the shower trap / waste pipe. (Note: Access to the trap and waste is tight/restricted, so please be prepared for a bit of awkward access). Shower Water Supply: Turn water supply back on to the shower (currently capped off) and test the full system. Requirements: Please bring your own tools, basic plumbing fittings, and sealant/connectors. Must be available to start today. Excellent reviews / track record on plumbing/bathroom jobs preferred. Please submit your quote (or half-day/day rate) along with your earliest arrival time today. Ready to assign immediately!

W5 — possible valve/leak or bleeding issue

£100

Ealing, Greater London

4th Nov 2026

radiator repair needed in Ealing W5 — possible valve/leak or bleeding issue. Could you quote a call-out and repair, and are you available soon?

Water leak behind a wall

£300

Goodmayes, Greater London

3rd Nov 2026

Hi, Water has been leaking slowly behind a wall for a few months and has caused noticeable damage on both sides of the wall. The source is probably an adjacent bathroom. It's not from the water supply as water meter value is stable when all taps are closed. It's not from radiator loop as boiler pressure is stable. Possibly it's from waste flow, e.g. sink or toilet. I have attached pictures to help you estimate the scale of works required. Please provide a quote for the entire work required, i.e for trace, access, and repair. Thank you.

Leaky kitchen sink tap

£50

Hither Green, Greater London

3rd Nov 2026

Hi, I have a swivel kitchen tap and anytime I run tap from kitchen sink it leaks from the swivels base. Can you please advise whether this is a job that can be fixed with existing tap or whether it will require a new kitchen sink tap?

Urgent: fix leak from toilet cistern

£50

Brentford, Greater London, TW8

3rd Nov 2026

The water from the toilet cistern seems to be leaking each time on flush. Inspect and fix this.

Possible Water Leak Above Kitchen Spotlights and Lights Not Working

£10

Balham, Greater London

3rd Nov 2026

Open to offers! I suspect there may be a water leak coming from the washing machine located directly above my kitchen\. The kitchen ceiling spotlights have stopped working, and I’m concerned water may have affected the electrical wiring\. I’m looking for a qualified and insured plumber/electrician who can: - Investigate the possible leak from the washing machine or its pipework\. - Identify where the water is coming from\. - Check the kitchen ceiling and affected spotlights\. - Make sure the electrical wiring is safe\. - Advise on any repairs needed\.

gave good advice on things I could do

Slight leak in the downstairs bathroom

£50

Keston Mark, Greater London

2nd Nov 2026

near wash basin there is slight water leak

Leak under sink.

£250

Newbury Park, Greater London

1st Nov 2026

Leak under sink. Leaking even when sink or washing machine aren’t in use. Looks like drips from two places. Pipes may need resealing or replacing.

Arrived on time (even after having to walk up 6 flights of stairs as the lift had broke). Fixed the issue promptly and explained everything.

Need a plumber - leak in kitchen ceiling coming from bathroom

£50

Vauxhall, Greater London, SE11

21st Oct 2026

Leak in kitchen ceiling coming from bathroom/toilet - need plumber to come and inspect

Good and knowledgable

Water leaking from ceiling

£100

Plaistow, Greater London, E13

12th Oct 2026

Water is leaking in ground floor ceiling from 1st floor bathroom

Very good service and prompt

Plumbing, fix a small leak

£50

South Norwood, Greater London, SE25

6th Oct 2026

Fix small leak thats coming thro under my boiler. Been told it should be an easy fix with the right equipment.

Michael was fab! Completed the job quickly.

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.