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.
Learn moreLeak Emergency? We're Mobilised
London's 24/7 Leak Emergency Response
Your leak won't wait for business hours; we have engineers on the road across London, ready to act the moment you call.
Always On Call24/7 Dispatch
Rapid MobilisationFast Response
Immediate DiagnosisOn-Site Detection
Stop the SourceUrgent Containment
PinpointedNot guessed. Not dug up.
Before 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.
Our Emergency Response Process
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
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
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.
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
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 — built to the standard insurers ask for.
Guides
Urgent Advice: Acting Fast on Leaks
013 min read024 min read032 min read043 min read
Emergency Response
Acoustic vs. Thermal vs. Tracer Gas: Which Leak Detection Method is Fastest for an Emergency?
Emergency Response
Are Smart Water Leak Detectors Worth It? The 24/7 Emergency Plumber's Take
Emergency Response
Brown Stain on Ceiling: Leak or Damp? Urgent Action Guide
Emergency Response
Burst Pipe Insurance Claim UK? Act Fast to Protect Your Property
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.