
Water Leak Detection LondonAdvanced Leak Detection Specialists
Professional water leak detection services across London using advanced thermal imaging, acoustic equipment, and electronic detection. Call 0208 935 5572.


Professional Leak Detection Services
Advanced technology to locate hidden water leaks with minimal disruption
Non-Invasive Detection
Advanced leak detection methods that locate hidden leaks without damaging your property.
- Thermal imaging cameras
- Electronic leak detection
- Moisture meters
Acoustic Detection
Professional acoustic equipment to pinpoint underground and hidden pipe leaks accurately.
- Ground microphones
- Listening equipment
- Pipe location tools
Emergency Service
24/7 emergency leak detection service for urgent water damage prevention across London.
- 24/7 emergency callouts
- Rapid response times
- Water damage prevention
Types of Leaks We Detect
Professional detection services for all types of water leaks
Underground Leaks
Detection of leaks in underground water mains, service pipes, and drainage systems.
- Water main leaks
- Service pipe leaks
- Underground drainage leaks
Central Heating Leaks
Precision detection of leaks in heating systems, radiators, and underfloor heating.
- Radiator and pipe leaks
- Underfloor heating leaks
- Boiler system leaks
Hidden Pipe Leaks
Detection of concealed leaks behind walls, under floors, and in ceiling voids.
- Behind wall pipe leaks
- Under floor leaks
- Ceiling void leaks
Roof & Structural Leaks
Identification of water ingress through roofs, walls, and structural elements.
- Roof leak detection
- Wall penetration leaks
- Window and door leaks
Our Detection Process
Systematic approach to accurate leak detection and location
Initial Assessment
Visual inspection and assessment of suspected leak areas
Equipment Setup
Deployment of specialized detection equipment and sensors
Leak Location
Precise location of leaks using advanced detection methods
Report & Repair
Detailed report with repair recommendations and immediate action
Why Choose Our Leak Detection Service?
Advanced Technology
State-of-the-art leak detection equipment including thermal imaging, acoustic sensors, and electronic detection systems.
Non-Destructive Methods
Our detection methods locate leaks without damaging walls, floors, or landscaping, saving you money on repairs.
Rapid Response
24/7 emergency service with rapid response times to prevent water damage and minimize disruption.
Complete Service
From detection to repair, we provide complete leak resolution services with detailed reporting and insurance documentation.

Emergency Leak Detection
Water damage spreading? Our emergency leak detection service provides rapid location and immediate action to prevent further damage across London.
24/7 Emergency Service
Available around the clock for urgent leak detection
Rapid Response
Emergency callouts within 1 hour across London
Damage Prevention
Quick detection to minimize water damage
Water Leak Detection and Leak Detection London Services
Our leak detection London service finds hidden water leaks in homes, flats and commercial buildings using thermal imaging, acoustic listening, tracer gas and pressure testing. Domestic visits are £120+VAT for the first hour, and we only open up the floor or wall where the leak has been pinpointed.
Water leak detection is worth booking when you see a damp patch with no obvious source, your water meter keeps turning with every tap off, your boiler keeps losing pressure, or a downstairs neighbour reports water coming through the ceiling. Finding the exact point first saves days of exploratory work and the cost of repairing unnecessary damage.
Our leak detection services cover mains supply pipes under gardens and driveways, central heating and underfloor heating pipework, concealed pipes under screed, shower and bath wastes, and leaking cylinders and tanks. After locating the leak we give you a written report with photographs, which insurers usually ask for under trace and access cover.
If a leak has caused a blockage or overflow, our drainage unblocking engineers can follow up. For a burst pipe out of hours call our 24 hour plumber line. Outside London we cover Surrey through our plumber in Guildford, and in south-west London through our plumber in Fulham.
Leak Detection Questions
How much does leak detection cost in London?
Domestic leak detection is £120+VAT for the first hour, then £60+VAT per half hour. Commercial work is £150+VAT for the first hour. Repairs and parts are quoted before work starts.
What is water leak detection?
Water leak detection uses thermal imaging, acoustic listening, tracer gas and pressure testing to find a hidden leak in pipes, heating or mains without opening up floors and walls blindly.
Do you offer leak detection services for insurance claims?
Yes. We provide a written report with photographs and the leak location, which you can pass to your insurer under trace and access cover.
Can you find a leak under a concrete floor?
Usually, yes. Acoustic and tracer gas equipment can pinpoint leaks in pipes buried under screed or concrete so only a small section needs to be opened.
Related specialist services
Water Leak Detection in London: Full Scope of Engineering Works
Our water leak detection service covers the complete lifecycle of the systems we look after in London — from initial survey and design through to installation, commissioning, statutory testing, planned maintenance and reactive emergency repair. Every visit starts with a documented condition assessment so you know exactly what is failing, what it will cost to put right, and what can safely be deferred to a future planned visit.
We work in occupied residential blocks, offices, restaurants, schools, care homes, warehouses and industrial units, so our engineers are used to working around tenants, service users and trading hours. Where a shutdown is unavoidable we agree the window in advance, isolate safely, and restore service the same day wherever parts availability allows.
- Full site survey, fault diagnosis and written recommendations before any water leak detection work begins
- Installation, replacement, commissioning and handover with manufacturer-compliant test data
- Planned preventative maintenance (PPM) visits priced per visit following survey
- Emergency breakdown attendance, isolation and making safe, 24 hours a day
- Parts sourcing from UK trade suppliers, with genuine OEM components wherever available
- Electronic reporting, asset tagging and compliance documentation for landlords and facilities teams
Technical Standards & Specifications We Work To
Compliance is not optional on commercial plant. All water leak detection work is carried out to current British Standards and industry guidance, with test readings recorded and issued as part of your completion documentation so your building file stays audit-ready.
- Gas Safe Register — company No. 582607, domestic and commercial competencies
- Gas Safety (Installation and Use) Regulations 1998 for all gas appliance work
- BS 6891 gas installation pipework and BS 6644 commercial gas-fired plant
- IGEM/UP/1 and IGEM/UP/2 purging and strength/tightness testing procedures
- Water Supply (Water Fittings) Regulations 1999 and L8 / HSG274 water hygiene guidance
- BS 7671 18th Edition wiring regulations for associated electrical connections
Why Choose UK Gas Plumbers
We have been maintaining domestic and commercial heating, gas, plumbing and pump systems across London and the M25 for over a decade. Clients stay with us because the same engineers return to the same sites, build up knowledge of the plant, and pick up developing faults before they turn into an out-of-hours emergency.
- One accountable team — survey, installation, servicing and emergency cover from a single contractor
- Coverage across Greater London and the whole M25 corridor, seven days a week
- Transparent half-hourly rates with a minimum one-hour charge and no hidden callout fees
- 5-star rated on Google and Checkatrade with 547 verified customer reviews
- £5,000,000 public liability insurance, RAMS and method statements supplied on request
- Business credit accounts available with 30-day payment terms for managing agents
Water Leak Detection — Frequently Asked Questions
How quickly can you attend a water leak detection job in London?
We run a 24/7 callout rota across London and the M25. Emergency attendance is typically within a few hours, and planned water leak detection visits are usually booked within 24 to 48 hours. Call 0208 935 5572 to confirm the next available engineer.
Are your water leak detection engineers Gas Safe registered and insured?
Yes. Every engineer is Gas Safe registered (company registration No. 582607) and works under £5,000,000 public liability cover. Commercial gas work is carried out to the relevant ACS commercial competencies, and certification is issued electronically on completion.
How much does water leak detection work cost?
Domestic labour is charged at £60 + VAT per half hour and commercial labour at £75 + VAT per half hour, with a minimum one-hour charge. Parts are quoted separately and approved before we fit them, so there are no surprise costs.
Do you provide reports and certification after the work?
Yes. You receive a written report covering the work carried out, parts replaced, test readings and any remedial recommendations, plus any statutory certificate that applies. Reports are emailed the same day and stored for your compliance records.
24/7 Emergency Water Leak Detection — Call Now
Gas Safe registered engineers on call across London and the M25, day and night.
0208 935 5572
