Tracer Gas

A proven method of pinpointing the source of a water leak

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Rainbow’s Tracer Gas Leak Detection Services

Spotted a pool of water around your appliances? Boiler losing pressure? This is a clear indication of a leak in your underfloor or central heating system, and a sign that you need to take immediate action. That’s where our tracer leak detection experts come in. They have the training, experience and specialist equipment needed to locate a leak using tracer gas. 

What is Tracer Gas?

The tracer gas leak detection technique is a non-invasive method that uses a mixture of hydrogen (5%) and nitrogen (95%). While the word ‘gas’ may initially intimidate you, tracer gas is 100% safe to use and is highly effective when it comes to locating the source of a water leak.

How Does Tracer Gas Leak Detection Work?

This popular method of leak detection works by introducing tracer gas into the pipe with a suspected leak. The gas will then come out of the pipe at the leak’s source and make its way to the surface, seeping straight through building materials including concrete and tarmac. Once it’s on the surface, sensitive gas detectors are used to locate the tracer gas.

How Sensitive are Gas Detectors?

Our state-of-the-art gas detectors are highly sensitive and can identify even the smallest leaks in your pipes. Using these tools, our experts are able to pinpoint exactly where the tracer gas exits the pipe to accurately locate a leak before it has a chance to become a larger issue.

How Long Does Tracer Gas Leak Testing Take?

The length of time it takes for our experts to carry out leak detection using tracer gas depends on several factors including the severity of the problem. If you’re uncertain and require urgent assistance, don’t hesitate to call our 24-hour helpline on 01623 422488.

Benefits of Using Tracer Gas Leak Testing to Identify Leaks

One of the main benefits of using tracer gas to identify the source of a leak is that it’s a non-invasive method, meaning you won’t be forced out of your property for long. It’s also one of the most accurate and efficient methods of leak detection, which is why we highly recommend it in the event of an emergency.

What Happens After Tracer Gas Leak Testing?

Our job isn’t done once the location of the leak has been identified. The next step is to excavate the area to expose the source. In some instances, we may even need to dig down to hidden pipes. The repairs can then be carried out by our experts (at an additional cost) or a plumber of your choice. We can handle any restoration work too.

We have a nationwide network of branches throughout the UK. Find your local Rainbow:

Frequently Asked Questions

No, tracer gas is not dangerous. It’s made up of 5% hydrogen and 95% nitrogen and is 100% safe to use – even in drinking water supplies. 



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Rainbow Restoration
Spectrum House
Lower Oakham Way
Oakham Business Park
NG18 5BY