--- title: "Leak Detection Bethnal Green & East London | Non-Destructive · From £180" description: "Non-destructive water leak detection in Bethnal Green & East London. Thermal imaging, acoustic & tracer gas. Find hidden leaks without ripping up floors. From £180. 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Insurance-approved reports.", "provider": { "@id": "https://mamoss.co.uk/#localbusiness" }, "areaServed": { "@type": "City", "name": "London" } }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much does leak detection cost?", "acceptedAnswer": { "@type": "Answer", "text": "MAMOSS leak detection starts from £180 for a standard survey in Bethnal Green and across East London. Complex multi-floor properties or commercial buildings are quoted on enquiry. The fee includes the survey, written report and pinpoint location — repair work is quoted separately." } }, { "@type": "Question", "name": "Will my insurance cover the leak detection cost?", "acceptedAnswer": { "@type": "Answer", "text": "Most UK home insurance policies include a 'trace and access' clause covering the cost of locating the leak (typically £2,000-£5,000). Our insurance-approved reports satisfy every major UK insurer's claim requirements." } }, { "@type": "Question", "name": "How long does leak detection take?", "acceptedAnswer": { "@type": "Answer", "text": "Most domestic leaks are located within 2 hours. Complex leaks or those requiring tracer gas may take 3-4 hours. We will always give you a time estimate upfront based on the symptoms." } }, { "@type": "Question", "name": "Do you damage walls or floors to find leaks?", "acceptedAnswer": { "@type": "Answer", "text": "No — that is the entire point of non-destructive detection. About 97% of leaks are pinpointed without any cutting. Where a small inspection cut is unavoidable (around 3% of jobs), we will discuss it with you first and keep the access as small as possible." } }, { "@type": "Question", "name": "Can you detect leaks under a concrete floor?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Acoustic correlation and tracer gas are both highly effective through concrete, including thick screed and structural slabs. Thermal imaging works on slabs up to about 100 mm." } }, { "@type": "Question", "name": "Can you fix the leak the same day?", "acceptedAnswer": { "@type": "Answer", "text": "In most cases, yes. We carry a full range of plumbing fittings on the van and can carry out the repair immediately after location, subject to access. Embedded pipe repairs may need a follow-up visit if floor lifting is required." } }, { "@type": "Question", "name": "Do you handle emergency leaks 24/7?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. For active major leaks (water flooding, ceiling collapse risk), we offer 24/7 emergency call-out across East London. Call 07377 788881 anytime." } }, { "@type": "Question", "name": "Do you cover Hackney, Shoreditch and Stratford?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Our leak detection service covers Bethnal Green, Shoreditch, Hoxton, Hackney, Stratford, plus West, South and South-West London." } } ] } ] --- [ Limited Offer: New A-rated Boiler Installed from £1,950 — 10-yr warranty included Claim Now ](/contact) [![MAMOSS – Multi-Trade Property Services London](/assets/logo-CrEg7qQf.png)](/) [Home](/)[About](/about) Services Areas We Cover [Our Work](/our-work)[Reviews](/reviews)[Contact](/contact) [020 3432 2349](tel:02034322349)[07377 788881](tel:07377788881) [Request Estimate](/contact) - [Home](/) - [Services](/services) - Water Leak Detection ![Plumber using a thermal imaging camera to locate a hidden water leak in a London home](/assets/hero-leak-detection-Dd4bn4Df.jpg) Non-Destructive Leak Detection # Water Leak Detection in Bethnal Green & East London Find a hidden leak before it destroys your floors, ceilings and walls. Our thermal imaging, acoustic and tracer gas equipment locates leaks to within centimetres — no smashing tiles, no guesswork. [Book Leak Detection](/contact)[07377 788881](tel:07377788881) ★ From £180 · Insurance-approved reports · Same-day call-out · 24/7 emergency Last updated: 29 April 2026 £180 From <2hrs Typical Locate Time 97% First-Visit Find Rate 24/7 Emergency Response Insurance Approved Reports ## What Is Non-Destructive Leak Detection? Non-destructive leak detection uses specialist equipment — thermal imaging cameras, acoustic listening devices, tracer gas, moisture meters and pressure testing — to locate hidden water leaks behind walls, under floors and inside concrete slabs without tearing up your home to find them. Most water leaks in London properties are hidden: pinhole corrosion in copper pipework, failed compression joints buried in screed, leaking radiator tails under floorboards, slow drips from concealed shower waste pipes. By the time you see the damage — a damp patch on a ceiling, mould on a wall, a constantly running water meter — the leak has often been active for weeks. MAMOSS leak detection in Bethnal Green and across East London pinpoints the source within centimetres in under 2 hours on the average call-out, allowing a single small repair access — instead of ripping up an entire floor on a guess. Reports are insurance-approved and accepted by all major UK home insurers. - Thermal imaging — locates hot/cold leaks behind walls and under floors - Acoustic correlation — pinpoints leaks under concrete slabs - Tracer gas (hydrogen/nitrogen) — finds tiny leaks in mains pipework - Moisture mapping — confirms extent of water damage - Pressure testing — confirms system integrity after repair - Insurance-grade written report with photos - Same-day appointments across East London - 24/7 emergency call-out for active major leaks ## Signs You Have a Hidden Water Leak A hidden leak almost always shows itself indirectly long before the water becomes visible. If you have any of the following, book a leak detection survey immediately — every day of delay multiplies the damage cost: ### Unexplained High Water Bills A sudden jump of 20%+ in water usage with no change in lifestyle is the classic sign of a hidden leak. Even a tiny pinhole leak can leak hundreds of litres per week. ### Water Meter Spinning When Nothing Is On Turn off every tap and water-using appliance. If your meter is still ticking over, water is escaping somewhere on your supply pipework — a textbook leak detection job. ### Damp Patches on Walls or Ceilings A spreading damp patch, brown stain or paint blistering almost always traces back to a hidden leak — often metres away from where the damage shows, as water travels along joists and pipework. ### Boiler Pressure Constantly Dropping If you keep having to top up your boiler pressure every few weeks, the central heating system is leaking somewhere. Often it is a buried pipe under a floor or a corroded radiator tail. ### Hissing or Trickling Sounds A faint hissing or trickling sound when the house is quiet — especially behind a wall or near pipework — is often a high-pressure leak. Acoustic detection equipment finds these in minutes. ### Warm Spots on Floors An unexplained warm patch on a floor often indicates a leaking hot water or central heating pipe in the screed below. Thermal imaging confirms the location precisely. Our Process ## Our Leak Detection Process 1 ### Initial Site Survey We discuss the symptoms with you, inspect visible damage, and check the water meter and boiler pressure. This narrows the leak to mains supply, central heating, hot water, or waste pipework. 2 ### Pressure Testing We isolate sections of the suspected system and pressure-test each in turn to confirm which circuit is leaking. This eliminates 90% of the property before specialist equipment comes out. 3 ### Thermal Imaging Survey A FLIR thermal camera scans walls, floors and ceilings to identify temperature anomalies caused by escaping hot water or evaporative cooling from cold water leaks. Most leaks show clearly within minutes. 4 ### Acoustic Detection For leaks under concrete or in mains supply pipework, we use ground microphones and acoustic correlators to listen for the characteristic high-frequency hiss of pressurised water escaping. 5 ### Tracer Gas (If Required) For very small or intermittent leaks, we introduce a safe hydrogen-nitrogen tracer gas into the pipework and use a detector to follow the gas to its escape point. Locates leaks down to a single drip per minute. 6 ### Pinpoint Report & Repair Quote We mark the leak location to within a few centimetres, document everything in a written insurance-grade report (with photos and thermal images), and provide a quote for the repair — which we can usually carry out the same day. ## The Benefits of Professional Leak Detection ### Find the Leak, Not a Guess Avoid the cost and disruption of speculative excavation. Pinpoint location means a single small access hole instead of ripping up a whole floor. ### Stop Water Damage Spreading Every day a leak runs, structural damage spreads — rotted joists, ruined plaster, mould, electrical corrosion. Fast detection minimises rebuild cost. ### Insurance-Approved Reports Our written reports include photos, thermal images, location diagrams and findings — the format every UK home insurer requires for water-damage claims. ### Reduce Water Bills A pinhole leak can waste 50,000+ litres per year. Finding and fixing it pays for the survey within months on the water bill alone. ### Protect Boiler & Heating Topping up boiler pressure introduces oxygen and fresh tap water — accelerating corrosion of radiators and pumps. Stopping the underlying leak protects the entire system. ### Same-Day Repair Once located, most leaks can be repaired on the same visit. We carry copper, plastic, compression and push-fit fittings on the van as standard. ## Leak Detection in Detail: Equipment, Methods & Limits Modern non-destructive leak detection combines four core technologies. Thermal imaging is the fastest first-pass survey: a calibrated FLIR camera identifies temperature differences as small as 0.1°C — enough to spot a hot water pipe leak under a tiled floor or a cold water leak evaporating behind plaster. Acoustic detection is the workhorse for hard-to-reach leaks. Pressurised water escaping from a small hole creates a distinctive high-frequency hiss that travels through pipe walls and surrounding material. Specialist ground microphones and noise correlators triangulate this sound to within 10-20 cm of the leak — even through 200 mm of concrete. Tracer gas is the gold-standard final-pass technique. A safe non-toxic mixture (95% nitrogen, 5% hydrogen) is introduced into the depressurised pipework. The hydrogen — the smallest molecule in the universe — escapes through any leak and rises to the surface, where a sensitive detector picks it up. Finds leaks too small to make any noise at all. Moisture mapping with a calibrated dielectric meter then confirms the boundary of the wet area, distinguishing a recent active leak from old historic damp. This matters for insurance claims — insurers will challenge claims where the moisture pattern does not match a recent event. Honesty matters: leak detection is not magic. About 3% of leaks (intermittent low-pressure leaks behind dense materials) require a small inspection cut to confirm. We will always tell you upfront when this is likely and minimise any access required. Our 97% first-visit find rate is industry-leading. - FLIR thermal imaging camera (calibrated annually) - Acoustic correlator and ground microphones - Hydrogen-nitrogen tracer gas equipment - Calibrated dielectric moisture meter - Pressure testing kit (mains, heating, hot water) - Endoscope camera for confined-space inspection - Insurance-approved written report format - Same-day repair capability for located leaks Explore more of our services: [Home](/)• [Gas & Heating](/services/central-heating-engineer)• [Plumbing Services](/services/plumber)• [Electrical Services](/services/electrician)• [Emergency Plumber](/services/emergency-plumber)• [Areas We Cover](/areas)• [Get a Free Estimate](/contact) FAQ ## Frequently Asked Questions ### How much does leak detection cost? ### Will my insurance cover the leak detection cost? ### How long does leak detection take? ### Do you damage walls or floors to find leaks? ### Can you detect leaks under a concrete floor? ### Can you fix the leak the same day? ### Do you handle emergency leaks 24/7? ### Do you cover Hackney, Shoreditch and Stratford? Part of [Plumber →](/plumber) See all plumber services we provide. ### Related Reading & Guides [ #### Emergency Plumber 24/7 response to active major leaks. ](/services/emergency-plumber)[ #### Plumber Full plumbing services including leak repair. ](/services/plumber)[ #### Burst Pipe Guide Step-by-step actions before help arrives. ](/guides/what-to-do-if-pipe-bursts) ### Available Across London [Bethnal Green](/areas/bethnal-green)[Shoreditch](/areas/shoreditch)[Hackney](/areas/hackney)[Stratford](/areas/stratford)[Hoxton](/areas/hoxton)[East London](/areas/east-london)[All Areas →](/areas) ![MAMOSS property services team ready to help across London](/assets/cta-bg-BCYUu3i9.jpg) ## Ready to Solve Your Property Problem? Speak to a qualified engineer today. No obligation estimates, transparent pricing, and rapid response across London. 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[07377 788881](tel:07377788881) [info@mamoss.co.uk](mailto:info@mamoss.co.uk)Unit C, 279 Bethnal Green Road, London E2 6AH ### Services - [Central Heating Service](/central-heating-service) - [Plumber](/plumber) - [Electrician](/electrician) - [Gas Engineer](/gas-engineer) - [Boiler Supplier](/boiler-supplier) - [Drainage Service](/drainage-service) - [Bathroom Renovator](/bathroom-renovator) ### Areas - [Bethnal Green](/areas/bethnal-green) - [Shoreditch](/areas/shoreditch) - [Hackney](/areas/hackney) - [Stratford](/areas/stratford) - [Hoxton](/areas/hoxton) - [East London](/areas/east-london) ### Guides - [Boiler installation cost London](/guides/boiler-installation-cost-london) - [Combi vs system boiler](/guides/combi-vs-system-boiler) - [How long does a boiler install take?](/guides/how-long-does-boiler-installation-take) - [What to do if a pipe bursts](/guides/what-to-do-if-pipe-bursts) - [How to turn off your water (UK)](/guides/how-to-turn-off-water-uk) ### Company - [About Us](/about) - [Our Work](/our-work) - [Reviews](/reviews) - [Special Offers](/specials) - [Contact](/contact) ### Accreditations - [Gas Safe Registered ↗](https://www.gassaferegister.co.uk/) - [CHAS Accredited ↗](https://www.chas.co.uk/) - [Safe Contractor ↗](https://www.safecontractor.com/) - [Constructionline ↗](https://www.constructionline.co.uk/) - [CIPHE Member ↗](https://www.ciphe.org.uk/) © 2026 MAMOSS Ltd. 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