Tracer Gas Leak Detection
Professional tracer gas leak detection for homes and businesses across the North West. We use highly sensitive testing methods to pinpoint difficult hidden leaks accurately with minimal disruption.
Specialist tracer gas leak detection throughout Liverpool and the wider North West.
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Tracer Gas Leak Detection Services For Homes & Businesses 🏡
Advanced Leak Detection Equipment
We provide FREE QUOTES for all of the leak detection services in Liverpool and across the North West.


Specialist Tracer Gas Leak Detection Services
At North West Leak Detection our specialist tracer gas leak detection service is one of the most accurate ways to locate hidden leaks in water systems. By using safe, non-toxic gas, we can quickly trace leaks in underground pipes, underfloor heating, and concealed plumbing without the need for disruptive excavation or guesswork.
Tracer gas detection is suitable for both domestic and commercial properties, offering reliable results even where other methods struggle. Our team uses advanced equipment to track the movement of gas and pinpoint the exact source of the leak, saving time, reducing repair costs, and protecting your property from further damage.

What Is Tracer Gas Leak Detection?
Tracer gas leak detection is a specialist method used to identify hidden leaks in plumbing and heating systems with exceptional accuracy. The process involves introducing a safe, non-toxic gas mixture into the pipework, which escapes wherever a leak is present. Sensitive detection equipment then tracks the gas to pinpoint the problem area.
Because tracer gas is lighter than air and harmless, it provides a reliable and non-invasive way to locate leaks without damaging your property. This technique is especially effective for detecting leaks in underground pipes, underfloor heating, and concealed plumbing where other methods may not succeed.
We Help Find Leaks In
- Central Heating Systems
- Internal & External Water Mains
- Plumbing Pipework
- Structural & Roof Leaks
- Leaks Through Ceilings
- Bathrooms & Showers
We Help Find Leaks Under
- Under Any Internal Floor
- Under Any External Surface
- Inside Walls, Ceiling & Other Voids
Insurance Claims
Specialist Leak Detection Services
From hidden water leaks and underground pipework to tracer gas and thermal imaging, our specialists use professional detection equipment to accurately locate leaks with minimal disruption.
Water Leak Detection
Detect hidden water leaks quickly using specialist non-invasive equipment, helping to prevent costly damage and unnecessary disruption.
View Service →Plumbing Leak Detection
Accurately identify concealed plumbing leaks before they cause further damage to walls, floors, ceilings or surrounding fixtures.
View Service →Water Mains Leak Detection
Locate mains water leaks responsible for low pressure, unexplained water usage, damp ground or unexpectedly high water bills.
View Service →External Pipe Leak Detection
Find leaks in external pipework and supply lines without unnecessary excavation or widespread disruption around your property.
View Service →Gas Leak Detection
Specialist gas leak detection using professional equipment to help accurately identify the source of suspected gas leaks.
View Service →Underground Water Leak Detection
Pinpoint hidden underground water leaks using advanced detection methods designed to reduce unnecessary digging and property damage.
View Service →Trace & Access Leak Detection
Precisely locate concealed leaks and identify the most appropriate access point, helping to minimise unnecessary disturbance.
View Service →Underfloor Heating Leak Detection
Locate leaks beneath underfloor heating systems without immediately lifting large areas of flooring or causing unnecessary damage.
View Service →Commercial Leak Detection
Professional leak detection for commercial premises, helping businesses locate faults quickly and reduce costly operational disruption.
View Service →Tracer Gas Leak Detection
Use highly sensitive tracer gas testing to identify difficult leaks where conventional detection methods may be less effective.
View Service →Thermal Imaging Leak Detection
Identify temperature differences caused by hidden leaks within floors, walls and ceilings using professional thermal imaging technology.
View Service →Swimming Pool Leak Detection
Locate swimming pool leaks accurately to reduce unnecessary water loss and help protect the surrounding structure and equipment.
View Service →How Tracer Gas Detection Works
Tracer gas detection works by introducing a small amount of non-toxic, odourless gas into the plumbing or heating system. This gas, usually a mix of hydrogen and nitrogen, safely flows through the pipework and escapes wherever there is a leak. Our highly sensitive detectors are then used above ground to pick up the gas, allowing us to trace the precise location of the leak.
The process is fast, accurate, and completely non-invasive, meaning there’s no need for digging, drilling, or lifting floors unnecessarily. Because tracer gas is lighter than air, it rises quickly through materials like soil, concrete, or flooring, making it ideal for locating leaks in hard-to-reach places with minimal disruption to your property.
Customer Testimonials
Read what our valued customers are saying about our leak detection services.
Frequently Asked Questions
Tracer gas is one of the most effective methods for locating hidden leaks, but many customers want to know how it works in practice. Here are answers to some of the most common questions we receive about tracer gas leak detection across Liverpool and the North West.
Yes, tracer gas is completely safe. The mixture used is usually 95% nitrogen and 5% hydrogen — both non-toxic, non-corrosive, and harmless to humans, pets, and the environment. Because hydrogen is lighter than air, it escapes quickly through even the smallest leaks, making it highly effective for detection. The gas does not leave any residue or odour, and it naturally dissipates once the test is complete. This makes it a safe and reliable option for detecting leaks in both domestic and commercial properties without any health risks.
No, it isn’t necessary to leave your property while we carry out tracer gas detection. The gas used is completely safe and odourless, so there is no risk to you, your family, or your staff. Our team works efficiently with specialist detectors to trace the gas and identify the leak’s exact location. The process is quick, clean, and non-invasive, meaning there is no disruption to your daily routine. Once complete, we provide clear findings and guidance on the next steps for repair. Many customers are surprised at how simple and unobtrusive the process is.
Tracer gas can be used to detect leaks in a wide range of systems, including underground pipes, central heating systems, and underfloor heating. It is especially effective where other detection methods may struggle, such as in concealed pipework or when leaks are very small. Because the gas escapes wherever there is even a tiny crack or hole, it allows us to pinpoint leaks with exceptional accuracy. This versatility makes tracer gas one of the most reliable detection methods for both homes and businesses dealing with hidden or persistent leak issues.
Tracer gas is one of the most precise leak detection methods available today. Because hydrogen molecules are so small, they escape easily from even the tiniest gaps in pipework. Our sensitive detectors can then pick up these traces above ground, allowing us to pinpoint the location of a leak with high accuracy. This means only targeted access is required for repairs, saving time and money compared to trial-and-error methods. The accuracy of tracer gas also helps prevent repeat issues, giving you confidence that the true source of the leak has been found and properly resolved.











