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How Much Does Leak Detection Cost?

Reviewed by the Devon Leak Detection team. Last updated June 2026

The short answer
The cost of a leak detection visit varies with the type and location of the leak, the methods needed and the size of the property. We don’t quote a fixed price sight unseen. We give a clear, no-obligation quote first. If you have trace and access cover on your home insurance, the cost of finding and reaching the leak is often covered, subject to your policy limit and excess.

It’s one of the first questions people ask when they spot a damp patch or watch the water meter creep up: what is this going to cost me? It’s a fair question, and an honest answer is that there is no single price for leak detection. Two leaks that look identical from the surface can take very different amounts of time and equipment to pin down. What we can do is explain what drives the cost, how we keep it fair, and why your home insurance may pick up a large part of the bill.

Why there is no flat fee for leak detection

Anyone who quotes you a firm figure before they understand the job is guessing. A small leak under an exposed sink takes minutes to confirm. A leak buried beneath a solid concrete floor, or hidden inside a cavity wall, can take a careful morning of work with several pieces of specialist kit. The price reflects the time, the equipment and the difficulty of reaching the source without tearing your home apart in the process.

That is also why we quote first. Before any work starts, we talk through what you’re seeing, agree a clear price with no obligation, and only proceed once you’re happy. You will never get a surprise invoice from us.

What influences the cost of a visit

The type and location of the leak

Where the leak sits is usually the biggest single factor. A leak on a visible pipe in a utility room is straightforward. A leak under a tiled bathroom floor, inside a wall, beneath a screed, or on a buried supply pipe running across the garden is a different matter. The harder the source is to reach, and the more layers of building material that sit between us and the pipe, the more time and care the job takes. The kind of leak matters too. A slow weep behind a wall behaves very differently from a steady loss on a central heating circuit or a mains supply pipe, and each calls for a slightly different approach.

The methods needed to find it

We use non-invasive equipment so that, wherever possible, we find the leak without lifting floors or opening walls on a hunch. The right tool depends on the job, and a tricky leak may need more than one. Common methods include acoustic listening equipment that picks up the faint sound of escaping water, thermal imaging cameras that reveal temperature differences where water is tracking, moisture meters that map out how far damp has spread, and tracer gas, where a safe gas is introduced into the pipe so we can detect exactly where it escapes. The more techniques a leak demands, the more the visit reflects that.

The size and layout of the property

A large house with a long run of pipework, several bathrooms and an underfloor heating system simply has more ground to cover than a small flat. More potential sources mean more checking before we can confirm exactly where the water is coming from. Access plays a part as well. If pipes are easy to get to, the work is quicker; if everything is boxed in, tiled over or buried, it takes longer.

Signs it may be time to call for leak detection

How home insurance can cover the cost

Here is the part many homeowners don’t realise. The cost of detection is often covered by your home insurance under a clause known as trace and access. Most buildings insurance policies in the UK include it, and it is well worth checking before you assume you’ll be paying out of pocket.

Trace and access cover is designed to pay for the work of finding a hidden water leak and getting to it, for example lifting a section of floor or opening up a wall to reach the pipe. In other words, it covers the very work we carry out. Cover limits vary between insurers, but many policies set the trace and access limit somewhere around several thousand pounds, with some offering more. A policy excess usually applies, often in the region of a hundred to a few hundred pounds, so it’s worth knowing your figure before you claim.

What trace and access usually does and doesn't include

It helps to understand what the clause typically pays for. Trace and access generally covers locating the leak and reaching it. It does not usually cover the cost of repairing the leaking pipe itself, and it is separate from any claim for water damage, which most policies handle under an escape of water clause. Policies differ, so the only way to be sure is to read your wording or ask your insurer directly. We’re happy to talk you through what is often included so you know the right questions to ask.

How we keep things straightforward

Our approach is simple. We discuss the problem with you, give a clear no-obligation quote, and only go ahead once you’ve agreed. We carry out the detection using non-invasive methods first, so we cause as little disruption as possible while we pinpoint the source. If you intend to claim on your insurance, we can provide a written report of our findings, which most insurers ask for as part of a trace and access claim. Same-week appointments are often available where possible, though we’ll always be honest with you about timing.

If you’d like to know more about how a visit works, you can read about our water leak detection service, see the areas we cover across Devon, or browse more guides in our articles.

Frequently Asked Questions

We give you a clear, no-obligation quote before any work begins. We don’t believe in firm figures quoted blind, because the cost genuinely depends on the leak. Once we understand what you’re dealing with, you’ll know exactly where you stand, with no surprises later.

Often, yes. Most UK buildings insurance policies include trace and access cover, which is designed to pay for finding and reaching a hidden water leak. Cover limits and excesses vary between insurers, so check your policy wording or ask your insurer. We can provide a written report to support a claim.

Usually not. Trace and access typically covers locating and accessing the leak, while repairing the pipe and any resulting water damage are normally handled under different parts of your policy. Policies differ, so it’s always worth confirming the detail with your insurer.

It depends on the leak and the property. A straightforward leak can be confirmed quite quickly, while a well-hidden source in a larger home can take several hours of careful checking. We’ll give you a realistic idea of timing when we discuss the job.

We use non-invasive methods such as acoustic equipment, thermal imaging and tracer gas wherever possible, so we can pinpoint the leak with the least disruption. The whole point is to avoid lifting floors or opening walls on guesswork.

Same-week appointments are often available where possible. Get in touch with a few details about what you’re seeing and we’ll let you know the earliest we can attend, and be honest with you about timing.

Get a clear quote before you decide

Spotted a leak or a damp patch you can’t explain? We’ll talk it through, give you a no-obligation quote, and help you check whether your insurance covers the cost.