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

Fixed the problem and helped me with something else in the house that was not working!

Small leak behind toilet tube

£25

Great job quick and efficient

Leaking tap in the bathroom

£50

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

Amazing work, done quickly too. Thank you again.

Repair/replace leaky pipes

£150

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 598 reviews

4.94

574
18
3
1
2

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Recent Leak Detection tasks in London

I've got a leaky tap in the bath

£50

Clapham, Greater London, SW4

16th Sep 2026

The tap in the bath is leaking slowly, a few drops at a time. Potentially a rubber seal which is the issue

Great and quick response!

Fit outdoor tap and fix leak

£100

Plumstead Common, Greater London

16th Sep 2026

I tried fitting a new outdoor tap, replacing an exiting rusty tap. The old tap was seized up and I have made a small leak trying to get the tap off. So the existing tap needs removing and a new one fitting.

Detect water leak affecting wall

£125

Unity Place, Greater London

16th Sep 2026

Looking for a qualified plumber or leak detection specialist to investigate and diagnose a concealed issue behind an internal wall at a property on Blackhorse Road, Walthamstow (E17). The property is being prepared for sale, so we need a definitive, thorough diagnostic to find the root cause, rather than a cosmetic fix. The Issue: Dark, oily/grease-like stains appearing in separate areas on an inside wall (including around an electrical socket). Distribution strongly suggests 2 issues. A roofing company has already ruled out roof flashing defects or external water ingress from above but no one has gone to the roof. Suspected cause: A slow-leaking water pipe or waste line inside the wall cavity. We are specifically looking for a professional who has and can utilize trace-and-access / leak detection equipment during the initial inspection. Please let us know if you use tools such as: - Moisture meters / testing - Thermal imaging cameras - Acoustic detection or tracer gas (if applicable)

Fix leaking kitchen mixer tap

£15

Kentish Town, Greater London, NW5

16th Sep 2026

Kitchen mixer tap is leaking from the base of the spout when either the hot or cold tap is turned on. The more the tap is opened, the more water spurts out. I would like someone to diagnose and repair it.

Mubarak did a great job; he was friendly and professional, and he kept me updated with clear communication throughout. Thanks again for coming out and for doing such a great job!

Help with shower knob and leaking tap in bathroom

£100

Croydon, Greater London

16th Sep 2026

I’ve got 2 jobs; It’s in two houses which are 8-10 mins drive from each other 1 - the knob on the shower thing has come out and it doesn’t click so we need a replacement on this thing - we don’t know where to buy it so if you know let us know parts we can get and you need to fix it please 2- leaking tap from the bathroom which needs to be fixed

Fix shower leak

£90

Orpington, Greater London, BR6

15th Sep 2026

The shower keeps dripping need someone to suggest a solution and fix the shower. Already tried to solve replacing the shower head; the leak didn't get solved. Task has 2 parts, 1. Suggest a solution or new parts in case they are needed, you can inspect the shower in person if required 2. Replace the parts and solve the leak issue Please share if you need any replacement parts that I should order or if you will have them with you. Shower looks like the one in the attached picture (brand: Aqualisa), it is thermostatic. You can suggest or bring the new parts; they don't need to be from Aqualisa, but still be good quality and have a warranty. The person must come with their own set of tools. Free Parking is possible in the driveway. Feel free to send a quote with additional parts or labor only+parts as needed. Screwfix and B&Q are 10 to 15mins drive from the house. Thanks.

Very professional and clean work. Will rebook again for handy tasks.

Possible leaking cistern bolts/washers; inspect

£60

Old Malden, Greater London

15th Sep 2026

There is a slow leak from around the toilet cistern. There is visible water staining and rust around the cistern-to-bowl fixing bolts. The leak occurs when the cistern is full, but stops after flushing when the water level drops. I suspect the cistern-to-bowl bolts, washers or gasket may need replacing, but I'd like the source checked and repaired properly. The toilet otherwise works normally. Please provide a fixed price including labour and standard parts.

Sink block and pipe leak

£60

Stratford New Town, Greater London

15th Sep 2026

Sink blocked Pipe under sink leaking

Replace bath screen, loosen stiff toilet flush, stop a small tap leak.

£200

Stockwell, Greater London

14th Sep 2026

A bath screen needs to be replaced. I have found one on Victorian Plumbing that looks suitable. There is also a stiffness to the toilet flush from a previous issue with it leaking. The bathroom tap also has a little leak from the back of it. It would be great if these could be fixed. The bath screen is a priority to have replaced.

A plumber to fix a leaking pipe from washing machine

£80

Soho, Greater London, W1F

13th Sep 2026

A plumber to fix a leaking pipe from washing machine ( please see photo attached) and also to check my shower is it might be leaking and damaging the flat underneath

Fixing a sink leak

£50

Brixton, Greater London, SW9

13th Sep 2026

Pipes under sink leaking which isn’t solved when we tighten them

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