No find no feeNon-invasive
Leak Detection
Hidden leaks pinpointed without opening floors or walls: acoustic, thermal and tracer gas methods, no find no fee.
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Specialist Leak Detection
London's Non-Invasive Leak Detection Experts
Advanced thermal imaging, acoustic detection, and tracer gas technology. We pinpoint hidden leaks across all 33 London boroughs without causing damage to your property. No find, no fee.
Covering EC, E, N, NW, SE, SW, W postcodes across all 33 London boroughs
- 24/7 Emergency
- No Find No Fee
- All 33 Boroughs
Quote before any work starts
Contact Us
Tell us about your leak. Free, no-obligation quote. No spam, no mailing lists.
24/7
Dispatch
We answer and act, day or night
33
Boroughs
Full Greater London coverage
0
Find fee
No find, no fee on detection
15
Min quote
Fast free no-obligation reply
Detection technology
Find the leak. Spare the property.
Specialist kit first. Dig last. Every visit starts with non-invasive methods so we only open what the evidence requires.
Thermal imaging
See temperature anomalies through floors and walls. Wet zones mapped before a single tile is lifted.
Acoustic detection
Ground microphones and correlators follow the sound of escaping water under concrete, timber and soil.
Moisture mapping
Calibrated meters profile how far water has travelled: the evidence layer behind every report.
Locate, then dig
Underground supply leaks marked to a single point. One small excavation instead of a wrecked driveway.
Why choose us
Built for urgent leaks, not sales scripts
Clear pricing before we travel, specialist detection on site, and reports your insurer can actually use.
No find, no fee
If we cannot locate a leak on the first visit with specialist kit, you pay nothing for detection.
Non-invasive first
We open only what the data demands. Floors, walls and finishes stay intact until the leak is proven.
24/7 dispatch
Live leaks do not wait for office hours. Engineers are on call across Greater London day and night.
Insurer-ready reports
Cause, origin and photo evidence written for escape-of-water claims, not a vague invoice line.
24/7
Dispatch
33
Boroughs
Insurance claims
Trace & access reports that move claims forward
Escape-of-water claims stall without clear cause and origin. We document the leak path, the access needed, and the photo evidence adjusters expect.
Trace & access reportsBefore we arrive
While you wait for us
Four things worth doing in the minutes after you spot a leak. None of them require a plumber.
Isolate the water
Shut off the stopcock or the isolating valve nearest the leak. It slows the damage while help is on the way.
Move what you can
Lift electricals, furniture and valuables clear of the affected area, and keep people away from any sagging ceiling.
Photograph the damage
Timestamped photos of the water, the source area and any affected belongings strengthen an insurance claim later.
Call, don't wait it out
A leak that looks minor now can be structural by morning. Our dispatch line is answered around the clock.
How it works
Our Emergency Response Process
From your first call to the fix: three steps, no phone queues, no vague arrival windows.
01
Your Urgent Call
Contact us anytime. Our emergency dispatch team immediately mobilises the nearest available engineer.
02
Rapid On-Site Arrival
Our engineer arrives with specialised detection equipment, ready to diagnose the leak's location without delay.
03
Immediate Action Plan
We pinpoint the leak, explain the situation, and proceed with urgent containment or repair as needed.
Leak Emergency? We're Mobilised
When Every Second Counts: Urgent Leak Detection
We specialise in locating and containing urgent leaks that demand immediate attention, minimising water damage from the moment we arrive.
0203040506
Thermal Imaging Surveys
Infrared cameras reveal wet floors, warm heating runs and moisture spread in minutes, with image evidence included.
Underground Leaks
Supply pipe and mains leaks located under gardens, driveways and concrete: one marked point, one small excavation.
Heating & UFH Leaks
Boiler losing pressure? We trace central heating and underfloor heating leaks to centimetres before anything is opened.
Emergency Plumbing
Bursts, failed stop taps, blocked toilets and active leaks: urgent response with pricing agreed before we travel.
Trace & Access Reports
Insurer-ready documentation of cause, origin and damage: the evidence your escape-of-water claim depends on.
How We Find Your Leak Under Pressure
Four specialist methods, chosen per job. The kit follows the evidence, not the other way round.
Acoustic
Ground microphones and correlators follow the sound of escaping water through floors, walls and soil.
Thermal
Infrared cameras map temperature anomalies: hot pipe runs, cold evaporation patches, spreading moisture.
Tracer gas
A safe hydrogen mix escapes through the same hole the water does, and rises straight to our detector.
Moisture mapping
Calibrated meters profile how far water has actually travelled: the evidence layer behind every report.
Urgent Leak Detection Services
Every emergency service we dispatch across London, grouped by the problem you're facing right now.
Core services
Leak Detection
Reports & blocks
Insurance & Commercial
Our London-Wide Emergency Network
We maintain multiple on-call teams strategically located to provide a fast response, no matter where your leak occurs in the city.
Coverage across all 33 Greater London boroughs. Map data © Google.
Coverage
24/7 Emergency Coverage Across London
Our rapid-response network of engineers covers every London borough, ensuring help is never far away when you need it most.
Barking and DagenhamBarnetBexleyBrentBromleyCamdenCity of LondonCroydonEalingEnfieldGreenwichHackneyHammersmith and FulhamHaringeyHarrowHaveringHillingdonHounslowIslingtonKensington and ChelseaKingston upon ThamesLambethLewishamMertonNewhamRedbridgeRichmond upon ThamesSouthwarkSuttonTower HamletsWaltham ForestWandsworthWestminster
Active leak? Get a free quote in minutes.
Tell us the postcode and symptoms. We reply with the fee and the earliest arrival window.
Why Londoners call us
Leak Detection London 24/7: what you can expect
No find, no fee
If our engineers can't locate the leak, you don't pay for the visit. We only charge for results.
Non-destructive by default
Acoustic, thermal imaging and tracer gas detection pinpoint the source before anything gets opened up.
Insurer-ready reporting
Every job gets a written report with cause, origin and evidence. The report is built to the standard insurers ask for.
Guides
Urgent Advice: Acting Fast on Leaks
018 min read023 min read0310 min read042 min read
Leak Detection
Detect and Repair in One Visit: What That Actually Requires
Leak Detection
Acoustic vs. Thermal vs. Tracer Gas: Which Leak Detection Method is Fastest for an Emergency?
Leak Detection
Are Smart Water Leak Detectors Worth It? What They Catch and What They Miss
Damp & Damage
Brown Stain on Ceiling: Leak or Damp? Urgent Action Guide
Urgent questions
Emergency Leak Detection: Urgent Questions
How fast can you get to my emergency leak?
Our response time depends on your location and current call volume, but our priority is immediate mobilisation. We dispatch the nearest available engineer from our 24/7 on-call network to reach you as swiftly as possible.
Do you offer a guarantee if you can't find the leak?
Yes. If our engineer attends your emergency and, using our specialist equipment, cannot locate a leak on the initial visit, there is no charge for the detection service. Our focus is on solving urgent problems, not creating costs.
Can you start repairs immediately after detection?
Absolutely. Our goal during an emergency call is to stop the damage. Once the leak is located, our engineer will discuss the repair options with you and can typically begin urgent containment or repair work during the same visit.
Is your emergency service covered by insurance?
Our leak detection reports are fully detailed for insurance claims. Many insurers recommend or require a professional detection report for water damage claims. We work with all major insurers and can liaise directly with your provider if needed.
What areas of London do you cover for emergencies?
We provide 24/7 emergency leak detection coverage across all London boroughs. Our network of on-call engineers is strategically located to ensure we can reach any postcode in Greater London with a rapid response.
What happens if my leak starts in the middle of the night?
Our service operates exactly the same way 24 hours a day. Call our emergency line. The same dispatch team will answer, mobilise an engineer, and provide the same urgent response, whether it's 3 pm or 3 am.
What kind of leaks require this urgent response?
Any leak causing active damage, risk of structural issues, or significant water loss needs an urgent response. This includes burst pipes, major underfloor leaks, leaks affecting electrics, or any situation where water is spreading rapidly.
How do you prioritise emergency calls?
All calls to our emergency line are treated as urgent. Dispatch prioritises based on severity of the reported leak and geographical proximity of our engineers to ensure the fastest possible help reaches those in most immediate need.