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A professional leak detection survey in the UK typically costs between £550 and £1,250, depending on the size of the property, the type of leak and the equipment needed to find it. This guide explains what affects the price, what a survey includes and how trace and access cover on your home insurance may help pay for it.
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The cost of hidden water leaks
What is professional water leak detection?
How is a water leak detected?
Water leak detection reports
How much does professional water leak detection cost?
Is professional leak detection worth it?
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FAQs
The cost of professional leak detection can vary because it depends on the complexity of successfully finding the leak. For example, the harder the leak is to reach, the more expensive it will be to detect and fix. It also depends on what equipment was used to find the leak. For example, using tracer gas will be more expensive than simply using a thermal imaging camera.
A ballpark figure for the cost of a leak detection service would be between £550 – £1,250. However, there is a key point to remember. Many popular buildings insurance policies include trace and access cover. This usually covers costs for:
It’s important that you review your insurance policy documents to ensure you are covered and to what level. If you are not covered, you will need to pay for the service in full.
A 2023 report by Affinity Water (a water only supplier) found that 68% of UK homes have had a water leak, and this contributes to £697m being wasted annually on water bills. These are mind-boggling numbers which aren’t going to drastically change in 2025.
Finding and fixing a water leak is vital, because without doing it, damage caused by a prolonged water leak will not only be costly to repair, but the remediation work will also disrupt your everyday until it’s resolved.
In this leak detection blog article, we’ll guide you through what professional leak detection is, how it works, and how much a leak detection service costs. So, you’ll have all the information you need to choose the right leak detection company for you.
A serious water leak can cost a business far more than the repair itself. A major escape can force a shutdown lasting weeks, with no income while rent, utilities and wages carry on, and for many SMEs that is enough to threaten permanent closure. Even a partial closure disrupts workflow and delays customers. Meanwhile, an undetected leak quietly inflates water bills by wasting thousands of litres and lowering system pressure, which makes appliances work harder. The longer-term risk is the damage you can’t see: persistent moisture weakens beams, warps floors and breaks down plasterboard, and it creates ideal conditions for mould, which puts staff and customers at risk and adds costly remediation on top of the structural repairs.
Simply put, professional water leak detection is the science of precisely pinpointing the root cause of a water leak within a building and its boundaries. No matter if it’s a suspected leak in a domestic property, a commercial site, or even an underground pipeline, the aim is always to locate the leak precisely. Doing so whilst minimising any disruption to the surrounding area.
By combining the latest techniques and technology, a water leak can be professionally detected with ease. There are multiple stages to accurately detecting a water leak. This includes a visual inspection of the domestic or commercial property is always undertaken. This involves looking for visible signs of water damage such as damp walls, mould and blistering plaster. The outside of a property will also be checked for things such as pooled water, or soft, muddy ground over pipework.
To learn more, click the link to find out how leak detection works and the different tools and techniques used to identify a hidden water leak.
Following successfully identifying the cause of the water leak, any reputable leak detection company will provide a comprehensive report detailing everything that was carried out. This will also include a comprehensive suite of images which highlight the severity of the leak too.
Along with a report, the leak detection specialist should walk through any recommendations and associated costs. It maybe the case that the leak can be fixed on the day, but this will depend on the severity of the leak.
In addition to fixing the leak, there may also be a need to clean and repair any damage caused by water ingress which is something that Ideal Response can also assist with. We have been providing professional leak detection for 20+ years, with a written report and recommendations after every survey.
Leak detection is well worth the investment. Without hiring a professional water leak detection company, you run the risk of the continuous leak causing major damage to the property. Which, in the long run which could cost thousands, if not tens of thousands to repair. In addition to the damage to your property, your utility bills will continue to increase as you lose water and the leak inevitably gets worse.
By being on the front foot with addressing a leak within your property, you’ll have complete peace of mind that you will mitigate spending more in the future to repair the damage that water has caused. Check out a couple of our leak detection case studies to see how UK property owners in a similar situation to you were brought peace of mind by Ideal Response and our leak detection service. We successfully located and repaired an external cold mains water leak and a water ingress affecting a cellar .
If you suspect that you have a leak within your domestic or commercial property, contact one of the Ideal Response team who will happily answer any questions and advise on the best course of action to get the source of the leak identified and repaired quickly.
Chris Hedges is Head of Marketing at Ideal Response and the author of every article published on this site. With over 25 years of senior marketing experience across property, legal, and professional services sectors, Chris brings a clear, evidence-led approach to writing about fire damage, flood restoration, and specialist property remediation. His philosophy is simple: cut through the noise, respect the reader's time, and give people the information they actually need.
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