Specialist Engineers
Focused investigation for water supply pipe leaks and external water leaks.
Mains Water Leak Detection
Mains Water Leak Detection
Locate hidden underground water leaks, water supply pipe failures and mains water leaks using thermal imaging, tracer gas and non-destructive investigation methods.
We investigate high water bills, water meters constantly running, external supply pipe leaks and hidden water loss between the meter and property.
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- Water Meter Running
- Underground Leaks
Non-Destructive Methods
Tracer gas, acoustic detection and thermal imaging used before excavation.
Coverage Across Southern England
London, Surrey, Berkshire, Buckinghamshire, Oxfordshire, Hampshire and Sussex.
Insurance Support
Written findings and photographs can be provided for claim support.
What It Means
What Is A Mains Water Leak?
A mains water leak is water loss from the supply pipe serving a property. This can include the pipework between the meter and the building, external pipe runs, underground pipework and hidden connections.
Supply pipe responsibility can vary depending on the location of the leak, meter position and property boundary. The first priority is identifying where water is escaping and whether the issue is internal or external.
Because these leaks are often underground, water loss can remain unnoticed until bills rise, the meter keeps running or damp ground appears outside.
Symptoms
Common Signs Of A Mains Water Leak
Water bill suddenly increased
A high water bill leak can indicate hidden water loss from supply pipework between the meter and property.
Water meter constantly running
A meter that continues moving when taps are off often points to an active mains water leak.
Damp areas outdoors
Unexpected wet patches on drives, paths, lawns or external walls can indicate an underground water leak.
Reduced water pressure
Lower water pressure may be linked to a supply pipe failure or leak on the incoming mains route.
Unexplained water loss
Ongoing water usage without visible internal leaks may require mains water leak investigation.
Soft or wet ground
Soft ground, pooling water or saturated soil can indicate a hidden water supply leak below the surface.
Process
How We Locate Underground Water Leaks
01
Initial Assessment
We review water bills, meter behaviour, property layout and the likely supply pipe route.
02
Leak Investigation
Tracer gas, acoustic detection and other non-destructive methods are used where appropriate.
03
Leak Location Confirmed
Findings are correlated to identify the likely underground water leak location.
04
Report & Recommendations
You receive clear findings to support excavation planning, repair or insurance requirements.
Why It Matters
Why Specialist Detection Matters
Avoid unnecessary excavation
Locate leak before digging
Tracer gas investigations
Acoustic detection methods
Evidence-led findings
Reduced disruption
Technology
Technology Used For Mains Water Leak Detection
Supporting Methods
Additional Investigation Techniques
Endoscopic Camera Inspection
Small inspection cameras are used to visually check concealed voids, pipe routes and difficult-to-access areas before opening up.
Dye Testing
Coloured test dye can help confirm water paths, waste leaks, bathroom leaks and suspected escape routes.
Pressure Testing
Controlled pressure testing helps identify whether sealed pipework or heating circuits are losing pressure.
Related Services
Related Leak Detection Services
01
Water Leak Detection
Structured investigation for hidden leaks in pipework, floors, walls and ceilings.
02
Trace & Access
Leak tracing and access evidence for concealed pipework and insurance claim requirements.
03
Insurance Leak Investigation
Evidence-led leak reports prepared for insurer, loss assessor and claim requirements.
04
Central Heating Leak Detection
Heating system leak detection for boiler pressure loss and hidden heating pipe leaks.
09
Damp Investigation
Damp surveys and moisture mapping for water ingress and hidden leak symptoms.
10
Waste Pipe Leak Detection
Investigation for hidden waste pipe, soil pipe and foul water leak symptoms.
Coverage
Areas We Cover
Mains water leak detection surveys are available across London, Surrey, Berkshire, Buckinghamshire, Oxfordshire, Hampshire and Sussex for homeowners, landlords, businesses and managing agents.
FAQs
Mains Water Leak Detection FAQs
Can a mains water leak increase my water bill?
Yes. A mains water leak or hidden water supply pipe leak can cause a sudden increase in water usage, especially if the leak is between the meter and property.
How do you find underground water leaks?
We use non-destructive leak detection methods such as tracer gas, acoustic detection and route assessment to narrow the likely underground water leak location before excavation.
Will my water meter run continuously if I have a leak?
A water meter that keeps running when all outlets are off can indicate an active leak on the supply pipe or internal pipework. It should be investigated promptly.
Do you need to excavate immediately?
No. The investigation starts with non-destructive methods to locate the likely leak position before excavation or access work is recommended.
Can findings support an insurance claim?
Yes. Written findings and photographs can support insurance, trace and access or repair planning requirements. Your insurer decides what is covered.
Get Expert Help
Request Mains Water Leak Detection
Speak to a specialist about a high water bill leak, running meter, underground water leak or suspected external supply pipe failure.
Phone: 0333 577 0194 WhatsApp: Message us Email: Use the contact form