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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Great rating - 4/5 (13330+ reviews)

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Recent Leak Detection reviews in London

High recommended and very efficient.

Pipe leaking

£50

Job done ! Great

Fix a Small leak out of a toilet

£50

Excellent. Quick response. Arrived on agreed time and completed the work very professionally. will recommend to anyone needing any work done.

Leak from base of toilet

£100

Great Airtasker. Punctual, fixed the issue with no delays. Would recommend for sure.

Fox a leaking toilet cistern

£100

Fast and efficient

Reseal leaking radiator valve

£30

Top man! Highly recommended. Super friendly and was able to help fix my espresso machine

Smeg ECF01 Espresso Machine leaking milk frother fix / refurbishment

£45

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

£70 - £135

low

£70

median

£100

high

£135

Low, median and high bar chart distribuiton

Average reviews for Leak Detection Services in London

based on 507 reviews

4.93

482
19
3
1
2

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Recent Leak Detection tasks in London

Diagnose & fix intermittent bath leak + fill/level damp wall

£150

Chadwell Heath, Greater London

21st Feb 2026

I have an intermittent water leak coming from under/around my bathtub. It only happens occasionally, but it has caused dripping into the flat below. The outer wall of the toilet/bathroom area is also getting moist. What I need: Diagnose the source of the leak (bath waste/overflow/trap, tap/supply connections, or failed sealant). Repair/replace any faulty parts and reseal where needed. Water-test after repair to confirm the leak has stopped. Wall repair: I removed the paint completely from the damp area. Please apply filler to level/smooth the wall. (I will paint it white later.) Access note: The bath is fitted tight to the wall with filler/finishing. It’s possible the bath panel/bath may need to be loosened or partially removed to access pipework—please confirm if you can do this.

Possible leak from hot water cylinder — cupboard door won’t close

£70

Strand On The Green, Greater London

20th Feb 2026

The laundry cupboard door no longer closes properly and I noticed a small amount of water around the cupboard area. It may be coming from the hot water cylinder or its pipework. Looking for a qualified plumber/heating engineer to inspect and advise.

Leaking boiler

£80

Acton, Greater London, W3

20th Feb 2026

I have a boiler with 2 connecting pipes going into it. One of the pipes is leaking so just needs attention and tightening.

Blockage in the sink causing leak near coffee machine

£30

Fitzrovia, Greater London, W1T

20th Feb 2026

Blockage that causes leak

Fix leak from toilet

£80

Longlands, Greater London

19th Feb 2026

The toilet seat seems to be leaking in the back and it's damaging the toilet flooring.

Quick and efficient. I recommend

Fix Leaking Kitchen sink

£80

Tooting, Greater London, SW17

19th Feb 2026

As per description - kitchen sink tap is leaking when turned on, you can see the water leaking if you look at the waste pipes underneath the sink. Ideally today. Location is SW178TB. Paid parking available. Need to provide own materials+tools.

Replacing a shower/bath mixer, and fixing running toilet (no leaking)

£120

Leamouth, Greater London

18th Feb 2026

I've got couple things need to be fixed, one is the shower, the tap starts hot and then would turn a bit warm, and the other one is toilet flushing, sometimes, it will have a bit of running water. I've ordered a new shower, for the toilet work, it is behind a wall, so might require removing and restoring few tiles.

Leaking kitchen tap. more than 1 leak

£80

Hayes End, Greater London

18th Feb 2026

3 leaks for months.from spring type tap. the handl bit has fallen off too. weeks ago due to limescale alot damaged after 5 years .

Radiator pipe leaking

£200

Enfield, Greater London, EN2

17th Feb 2026

Replacing leaking radiator pipe that is corroded. Need to remove and reinstall flooring as well

Bathroom sink leaking - plumber needed

£60

Holloway, Greater London

7th Feb 2026

sink leaking in bathroom - need a qualified plumber to look at it asap.

super professional, helpful and great communication! Very much recommended!

Mixer Tap Leaking in Kitchen (Cartridge Replacement)

£115

Shacklewell, Greater London

3rd Feb 2026

Issue: Kitchen mixer tap leaking from the gap between the hot/cold handle. The water dribbles down the shaft when in use. No flooding, the tap is still usable for now, but needs dealing with. Thoughts:likely a cartridge replacement or issue with sealing. I'd rather not replace the whole tap, but you'll do a diagnosis first and we'll discuss. Hopefully, it's a short one-and-done job: There's a Screwfix and a Toolstation nearby. If after diagnosis, the right part is available, I can nip off and buy it. Or, I can purchase one from you if you carry spares... Budget is for labour if this is the kind of job we're looking at... I'll cover you for parking vouchers during your visit as needed.

Ali came, and knew exactly what to do. Thanks!

I have kitchen sink leaking water is that something you can fix?

£50

Thornton Heath, Greater London

26th Jan 2026

have kitchen sink leaking water is that something you can fix?

Punctual and helpful, nice one Joe

Tighten leaking water pipes

£40

Norbury, Greater London

22nd Jan 2026

I’ve noticed a water pipe outside my bathroom is leaking. I can feel the top of the pipes are completely dry, and there is a notch that needs to be tightened where the drips are coming from. Any advice and expertise is welcome too. Small budget unfortunately but please help a girl out

Very prompt and efficient!

Fix leaking toilet

£40

Norwood Green, Greater London, UB2

18th Jan 2026

The back of my toilet is leaking, I’m unsure why. There is currently a bowl catching the water

Extremely helpful, very knowledgeable. Has gone the extra mile and spent more time here that anticipated. I appreciate your time and work a lot. Would 100% recommend!

Sink leaking plumber needed

£50

Turnpike Lane, Greater London

21st Dec 2025

Our sink is linking, the sealant has become loose and needs repairing.

Great work, will be using again!

Fix pipe leakage under sink

£60

Brownswood Park, Greater London, N4

16th Dec 2025

I dismantled the pipes under my sink after fitting everything back together there is a leak. Specifically the leak is between the top of the ubend and the exit pipe. The problem is that the end of the ubend has a screw nut and the exit pipe is just a flat pipe so the connection isn’t tight enough

Yilmaz clearly knows what he’s doing!

Toilet flush leak

£50

Lower Holloway, Greater London, N7

17th Nov 2025

Toilet cistern needs maintenance (it’s a bit rusty), also flush keeps dripping and needs to be stopped

Punctual, reliable and kind

Leak from toilet affecting floor. Needs to be stopped.

£10

South Harrow, Greater London, HA2

28th Oct 2025

Leak from our flat going downstairs. Needs to be found and fixed.

Excellent investigative work from Troy. He turned up quickly , diagnosed the issue and communicated promptly.

Fix a leaking bottle trap

£80

Acton Green, Greater London, W4

24th Oct 2025

Need a leaking bottle trap under sink fixed. Reattach or replace. Very short on space

Really happy I found Silva. He’s clearly very talented and skilled. What was thought to be a simple task of replacing a bottle trap, turned into a complicated job because of the structure and placement of my pipe work. Silva went the extra mile to disconnect and re attach the pipe and guided me on what he thought was best & not the easiest for him. Really pleased I’ve found him!! I’ve already booked him in for more work. Highly recommend!!

Fix bathroom leak

£50

Poplar, Greater London

11th Oct 2025

Leak in my bathroom create leak on roof of flat below. Need an experienced company to have a look, inspect the work and provide a quotation

Great work, thanks for everything