Underground Water Leak Detection

Professional underground water leak detection services for residential and commercial properties across the East of England and Greater London. Our specialists use advanced tracer gas technology, acoustic listening equipment, and ground microphones to locate buried pipe leaks accurately — without unnecessary excavation or disruption to your property.

  • No Unnecessary Digging
  • Tracer Gas Technology
  • Accurate Leak Location
  • Local Specialists

Booking: We can usually book you in within 24–48 hours.

Request Your Quote

Fast, Non-Invasive Underground Leak Detection

Signs You Have an Underground Water Leak

Detecting an underground water leak early prevents costly property damage and water wastage. Our specialists use advanced underground leak detection technology to find hidden leaks in buried pipes quickly and accurately.

Financial Warning

💷 Unexplained High Water Bills

Sudden increases in water consumption often indicate underground pipe leaks that need immediate investigation. If your water meter is running with everything off, you likely have a buried leak.

Visible Evidence

🌿 Wet or Boggy Patches in Garden

Persistently damp areas in your garden or lawn — especially during dry weather — signal water leaking from underground pipes. Unusually green grass patches can also indicate buried leaks.

System Performance

📉 Reduced Water Pressure

Declining water pressure throughout your property suggests significant underground plumbing leaks in your supply line. This requires professional underground leak locators to find the source.

Structural Risk

🛤️ Cracks in Paths or Driveways

Subsidence and cracking in hard surfaces often result from underground water leaks washing away supporting soil. Early detection prevents more serious structural damage.

Professional underground water leak detection specialist using advanced equipment to locate buried pipe leaks

Professional underground leak detection in action

Suspect an Underground Leak?

Get expert help fast. We can usually book you in within 24–48 hours.

Get a Quote

Additional Warning Signs

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Sound of Running Water Hearing water when taps are closed indicates underground leaks requiring professional acoustic leak detection.
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Water Meter Spinning Constantly A meter that runs when water is off confirms a leak. Learn more about diagnosing water meter issues.
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Water Inside Meter Box Finding water inside your water meter chamber often indicates a leak on your supply pipe.
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Water Company Notification Received a leak alert? See what to do about Thames Water, Anglian Water, or Cambridge Water notifications.

How We Detect Underground Water Leaks

Our underground leak detection specialists use industry-leading technology to find buried pipe leaks with precision. Every piece of equipment is specifically chosen to locate water leaks underground without unnecessary excavation.

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Tracer Gas Detection

Our primary method for underground pipe leak detection. A safe hydrogen-nitrogen gas mixture is introduced into the pipe system. The gas escapes through any leak and rises to the surface where our sensitive underground leak detectors pinpoint the exact location — even through concrete and tarmac.

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Acoustic Listening Equipment

Ground microphones and acoustic sensors detect the distinctive sound of water escaping from buried pipes. This acoustic listening technology is highly effective for locating water leaks underground in supply pipes.

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Correlation Technology

Advanced correlators compare sound signals from multiple sensors to calculate the precise leak location mathematically. Essential for accurately finding water leaks underground in long pipe runs.

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Thermal Imaging

Thermal imaging cameras detect temperature variations caused by underground leaks affecting ground surface temperatures. Particularly useful when water pipe leaks underground are close to the surface.

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Moisture Mapping

Professional moisture meters measure soil saturation levels to track leak spread patterns and identify affected areas. Helps determine the extent of underground water leak damage.

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Pipe Location Equipment

Electronic pipe locators trace the exact route of buried pipework before detection begins. Essential for accurate underground plumbing leak detection when pipe routes are unknown.

Underground water leak detection equipment including tracer gas detectors and acoustic listening devices

Our specialist underground leak detection equipment

Our Underground Leak Detection Process

Our systematic approach to finding underground water leaks combines advanced technology with expert analysis. This proven methodology ensures accurate results for both residential and commercial properties.

1

Site Assessment

Thorough inspection of your property including meter readings, pressure testing, and pipe route identification. We assess the likely location of your underground leak before deploying detection equipment.

2

Pipe Location

We trace the route of buried pipework using electronic locators to ensure accurate detection coverage. Essential for locating leaks in underground water pipes when routes aren't documented.

3

Advanced Detection

We deploy tracer gas technology and acoustic equipment to pinpoint the exact leak location. Our underground water pipe leak detectors locate leaks with millimetre accuracy.

4

Location Confirmation

Multiple detection methods confirm the leak position before any excavation. We mark the exact spot where your underground water leak is located.

5

Detailed Reporting

Comprehensive documentation including leak location, photographs, and recommended repair options. Useful for insurance claims and understanding the full scope of underground water leak repair needed.

6

Repair Options

We discuss repair solutions and can carry out the necessary excavation and pipework to resolve the issue. Our team handles complete leak detection and repair.

Underground leak detection process showing specialist accurately locating buried pipe leak

Systematic underground leak detection

Ready to Find Your Underground Leak?

Get expert help fast. We can usually book you in within 24–48 hours.

📞 078970 20680

Why Choose Complete Leak Detection

Looking for an underground water leak detection company near you? Complete Leak Detection delivers expert underground leak detection services with advanced technology and genuine care for your property.

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Tracer Gas Specialists

Industry-leading tracer gas technology for accurate underground pipe leak detection — even through concrete.

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No Unnecessary Digging

Our non-invasive methods locate underground leaks precisely, minimising excavation and disruption to your property.

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Insurance-Ready Reports

Comprehensive documentation with photographs for your records and insurance trace and access claims.

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Detection & Repair

Complete service from finding underground water leaks to carrying out underground water leak repair.

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Local Coverage

Serving residential and commercial properties across the East of England and Greater London.

Quick Booking

We can usually book you in within 24–48 hours to minimise ongoing water loss and damage.

Get an Underground Leak Detection Quote

💷 Bills rising? 🌿 Boggy garden? 📉 Pressure dropping? 📧 Water company alert?

We're confident in our equipment and expertise. Get in touch today for a no-obligation quote — we can usually book you in within 24–48 hours.

What Our Customers Say

Common Underground Leak Issues We Solve

Our underground water leak detection services address a wide range of buried pipe problems for homeowners and businesses. Whatever your situation, we have the expertise to help.

🏠 Water Mains Supply Leaks

Leaks in the pipe between your meter and property causing high bills and low pressure. Our water mains leak detection service locates these quickly using underground water pipe leak detectors.

🛤️ Leaks Under Driveways

Underground pipe leaks beneath tarmac, concrete, and block paving. Our tracer gas technology finds leaks without destroying your driveway. Learn how we find underground water leaks.

🌿 Garden Pipe Leaks

Water leaking from underground supply pipes causing boggy lawns and saturated flower beds. We pinpoint the exact leak location to minimise garden disruption during repair.

🏗️ Leaks Under Foundations

Underground leaks near or beneath building foundations risking subsidence. Early detection with our underground leak locators prevents serious structural damage.

🏢 Commercial Property Leaks

Underground plumbing leak detection for offices, retail units, warehouses, and industrial sites. We work efficiently to minimise business disruption. See our commercial leak detection services.

💧 Slab & Floor Leaks

Underground water leaks beneath concrete floors and slabs detected without excavation. Discover how to find water leaks under concrete floors.

Frequently Asked Questions

How do you detect underground water leaks without digging?
We use non-invasive technologies including tracer gas detection, acoustic listening equipment, and ground microphones to pinpoint underground leak locations accurately without unnecessary excavation. Tracer gas is particularly effective — a safe hydrogen-nitrogen mixture is introduced into the pipe and escapes through any leak, rising to the surface where our sensitive detectors locate the exact point.
What are the signs of an underground water leak?
Common signs include unexplained high water bills, wet or boggy patches in your garden, reduced water pressure, the sound of running water when no taps are on, cracks in paths or driveways, and your water meter running when all water is turned off. You can also use our Leak Checker tool to help identify potential issues.
How quickly can you book an underground leak detection appointment?
We can usually book you in within 24–48 hours. Contact us to arrange a convenient time for your underground water leak detection survey.
Can you detect leaks in water mains pipes?
Yes, we specialise in detecting leaks in water mains supply pipes between your meter and property. Our tracer gas and acoustic detection equipment can locate leaks in buried pipes at any depth, even beneath concrete and tarmac.
What is tracer gas leak detection?
Tracer gas leak detection involves introducing a safe hydrogen-nitrogen gas mixture into the pipe system. This gas escapes through any leak and rises to the surface where our sensitive underground leak detectors locate the exact escape point. It's highly effective for locating water leaks underground, even through concrete, tarmac, and soil.
Will you repair the underground leak after detecting it?
Yes, we offer complete underground water leak detection and repair services. Once we've located your leak, we can discuss repair options and carry out the necessary excavation and pipework to resolve the issue. We handle everything from detection to underground water leak repair.
How much does underground leak detection cost?
The cost depends on the complexity of the site and access requirements. Contact us for a no-obligation quote. You pay nothing if we don't detect a leak, subject to our terms and conditions.
What areas do you cover for underground leak detection?
We cover Cambridgeshire, Bedfordshire, Buckinghamshire, Hertfordshire, Essex, Suffolk, Norfolk, and Greater London. Contact us to confirm coverage in your specific area.

Need Underground Water Leak Detection?

Get your quote today and we can usually book you in within 24–48 hours. Fast, non-invasive detection without unnecessary excavation.

Request Your Free Quote

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£300+ annual cost
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