Tracer Gas Leak Detection

Professional tracer gas leak detection services for residential and commercial properties across the East of England and Greater London. Our specialists use hydrogen tracer gas technology to locate hidden water leaks with millimetre precision — even in the most challenging locations where other methods fail.

  • Millimetre Accuracy
  • Non-Invasive Method
  • Safe & Non-Toxic Gas
  • Underground Specialists

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

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Precise Tracer Gas Leak Detection

When You Need Tracer Gas Leak Detection

Tracer gas leak detection is often the most effective solution when standard methods cannot locate a hidden leak. This advanced technique excels at finding leaks in underground pipes, beneath concrete, and in complex plumbing systems.

Underground Leaks

🌍 Buried Pipe Leaks

When your water meter runs with everything turned off, you likely have an underground supply pipe leak. Tracer gas detection locates these buried leaks without excavating your garden or driveway.

Failed Detection

🔍 When Other Methods Fail

If acoustic or thermal detection hasn't found your leak, tracer gas often succeeds. The gas travels through the smallest gaps and rises to the surface, revealing leak locations that remain invisible to other technologies.

Concrete Slabs

🏗️ Leaks Under Solid Floors

Finding water leaks under concrete floors requires specialist equipment. Tracer gas passes through concrete and emerges at the surface directly above the leak point with pinpoint accuracy.

Heating Systems

🔥 Central Heating Leaks

If your boiler pressure keeps dropping, you may have a leak in your heating system. Tracer gas is ideal for locating leaks in underfloor heating and radiator pipework.

Professional tracer gas leak detection specialist using hydrogen gas equipment to locate hidden water leaks

Professional tracer gas leak detection in action

Suspect a Hidden Leak?

Get expert tracer gas detection. We can usually book you in within 24–48 hours.

Get a Quote

Other Situations Where Tracer Gas Excels

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Water Main Leaks Leaks in water mains supply pipes between your meter and property located precisely.
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Leaks Inside Walls Find water leaks inside walls without unnecessary demolition or plasterwork damage.
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Multiple Leak Points When a pipe system has several leak points, tracer gas can identify each location systematically.
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Commercial Properties Complex commercial plumbing systems with extensive pipework benefit from tracer gas precision.

How Tracer Gas Leak Detection Works

Our tracer gas detection method uses a safe hydrogen-nitrogen mixture that escapes through leak points and rises to the surface. Sensitive detectors then pinpoint the exact leak location with exceptional accuracy.

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Hydrogen-Nitrogen Gas

We use a safe mixture of 5% hydrogen and 95% nitrogen — completely non-toxic, non-flammable, and environmentally friendly for use in any property.

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High-Sensitivity Detectors

Professional-grade hydrogen detectors can sense gas escaping through even microscopic leak points, providing millimetre-accurate location data.

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Natural Gas Rise

Hydrogen is lighter than air and rises naturally through soil, concrete, and building materials to emerge directly above the leak source.

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Precise Location Marking

Once detected, we mark the exact leak position on your property — typically accurate to within centimetres for minimal excavation requirements.

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Pressurised System Testing

We pressurise the pipe system with tracer gas to ensure comprehensive coverage of the entire network being tested.

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Detailed Reporting

Complete documentation with photographs, leak locations, and repair recommendations for your records and insurance purposes.

Tracer gas leak detection services showing specialist equipment used to find hidden water leaks

Our Tracer Gas Detection Process

Our systematic tracer gas leak detection process ensures accurate results with minimal disruption. This proven methodology works for both residential and commercial properties.

1

Initial Assessment

We assess your property and plumbing system to determine if tracer gas detection is the most suitable method for your specific leak situation.

2

System Preparation

The affected pipe section is isolated and drained. We then connect our equipment to introduce the tracer gas mixture safely into the system.

3

Gas Introduction

Hydrogen-nitrogen tracer gas is pressurised into the pipe system. The gas escapes through any leak points and begins rising towards the surface.

4

Detection Scanning

We systematically scan the area above the pipe route using high-sensitivity hydrogen detectors to locate where the gas emerges.

5

Pinpoint Location

Once detected, we pinpoint and mark the exact leak location on your property, typically accurate to within centimetres of the leak source.

6

Report & Repair Options

We provide a detailed report with photographs and discuss repair options to resolve your leak efficiently.

Tracer gas leak detection process showing specialist locating an underground water leak

Systematic tracer gas detection process

Ready to Find Your Leak?

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

📞 078970 20680

Why Choose Complete Leak Detection

Looking for a tracer gas leak detection specialist near you? Complete Leak Detection delivers expert service with advanced technology and genuine care for your property.

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Millimetre Precision

Tracer gas provides the most accurate leak location available — reducing excavation and repair costs significantly.

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Non-Invasive Method

No unnecessary excavation or property damage — we locate leaks before any ground is broken or walls opened.

Safe & Eco-Friendly

The hydrogen-nitrogen gas mixture is completely safe for people, pets, and the environment — and leaves no residue.

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Detection & Repair

Complete service from finding your leak to fixing it — one team, one solution for your peace of mind.

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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 damage and water loss.

Get a Tracer Gas Detection Quote

🌍 Underground leak? 🏗️ Leak under concrete? 🔥 Heating system leak? 🔍 Other methods failed?

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 Issues Tracer Gas Detection Solves

Our tracer gas leak detection services address the most challenging leak problems for homeowners and businesses. When precision matters, tracer gas delivers.

🌍 Underground Supply Pipe Leaks

Water supply pipes buried in your garden or beneath driveways. Tracer gas locates the exact leak point to minimise excavation. Learn more about finding underground water leaks.

🏗️ Slab & Concrete Floor Leaks

Pipes running beneath solid concrete floors where visual inspection is impossible. The gas passes through concrete to emerge at the surface. Read about our slab leak detection expertise.

🔥 Central Heating System Leaks

Leaks in central heating pipework causing boiler pressure drops. Tracer gas is particularly effective for underfloor heating leaks.

🏠 Concealed Pipework Leaks

Pipes buried within walls, floors, or ceilings where traditional methods struggle. Find out how we locate leaks inside walls.

🏢 Complex Commercial Systems

Large buildings with extensive plumbing networks where acoustic methods produce confusing results. See our commercial leak detection services.

💧 Water Main Connection Leaks

Leaks between your water meter and property boundary. Our water mains leak detection service pinpoints these precisely.

Frequently Asked Questions

What is tracer gas leak detection?
Tracer gas leak detection uses a safe mixture of hydrogen and nitrogen gas that is introduced into the pipe system. The gas escapes through any leak point and rises to the surface, where our sensitive detectors pinpoint the exact location with millimetre accuracy. It's one of the most precise leak detection methods available.
Is tracer gas safe to use in my home?
Yes, the tracer gas mixture we use (typically 5% hydrogen, 95% nitrogen) is completely safe, non-toxic, non-flammable, and environmentally friendly. It poses no risk to people, pets, or property and disperses harmlessly into the atmosphere after detection.
How accurate is tracer gas leak detection?
Tracer gas detection is one of the most accurate leak location methods available, capable of pinpointing leaks to within centimetres or even millimetres. This precision significantly reduces the excavation or access work needed for repairs, saving time and money.
What types of leaks can tracer gas detect?
Tracer gas is highly effective for underground water main leaks, central heating system leaks, underfloor heating leaks, leaks in walls or concrete slabs, and any pressurised pipe system where other methods cannot locate the leak.
How long does tracer gas leak detection take?
Most tracer gas surveys can be completed within 2-4 hours, depending on the property size and complexity of the pipe system. We work efficiently to minimise disruption to your home or business.
Do I need to turn off my water supply for tracer gas detection?
Yes, the water supply to the affected pipe section needs to be isolated and drained before we can introduce the tracer gas. We'll guide you through this process and ensure minimal inconvenience to your household or business.
Can tracer gas find leaks that other methods miss?
Yes, tracer gas is often used when acoustic or thermal methods cannot locate a leak. Because the gas travels through even the smallest gaps and rises to the surface, it can find leaks that other technologies cannot detect.
What areas do you cover for tracer gas leak detection?
We cover Cambridgeshire, Bedfordshire, Buckinghamshire, Hertfordshire, Essex, Suffolk, Norfolk, and Greater London. Contact us to confirm coverage in your specific area.

Need Tracer Gas Leak Detection?

Get your quote today and we can usually book you in within 24–48 hours. Precise, non-invasive detection with minimal disruption.

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