Most UK trace and access jobs cost between £150 and £1,500. Many domestic leaks land around £450 to £650, and price guides put the typical figure near £500. Access difficulty is the main driver. Where you have trace and access cover (usually capped at £5,000, up to £10,000), your insurer often reimburses the cost.
When a hidden leak starts pushing up your water bill or staining a ceiling, the first question is usually "how much is this going to cost to sort out?" Finding the leak is its own job, separate from repairing it, and the price swings widely depending on where the water is escaping and how hard it is to reach. This guide sets out realistic UK costs for trace and access, what pushes the price up, how it sits against your insurance cover, and what you should expect for your money.
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How much does trace and access cost?
There's no single national price, because the job is priced on time and difficulty rather than a flat rate. That said, the published UK guides cluster around a clear range. As a realistic picture of the current market:
- Typical domestic job: around £450 to £650, with the wider range running roughly £150 to £1,500.
- Checkatrade puts the average water leak detection cost at about £162 (commonly £115 to £234) for a straightforward investigation, rising to around £500 on more complex jobs, within an overall span of £80 to £1,600.
- Specialist firms often quote a per-hour rate from about £120 + VAT for simple leaks, or a fixed price of roughly £950 to £1,250 + VAT for a full trace and access service covering attendance, diagnosis and the access works.
- One national provider lists detection from £595 + VAT for a standard full-day investigation, up to £1,500+ for the hardest cases.
The honest summary: budget a few hundred pounds for a typical hidden leak, and expect the figure to climb where the leak is buried, under a solid floor, or spread across more than one room. We don't publish a single headline price because quoting blind would be guesswork. The fair way is a fixed quote once we understand the property and the symptoms.
What drives the price of trace and access
Two jobs that both "find a leak" can be priced very differently. These are the factors that move the number:
| Factor | Effect on cost |
|---|---|
| Access difficulty | The single biggest driver. Lifting a few tiles is quick. Reaching a leak under a concrete slab, screed or driveway takes far longer, and breaking out and reinstating a solid floor alone can run to £2,000 to £3,000. |
| Detection method | A basic water-meter investigation might be £120 to £200. Advanced non-invasive work using thermal imaging or tracer gas typically sits around £200 to £600 for the detection element. |
| Where the leak is | Indoor leaks are usually cheaper to trace than underground supply pipes, which may need excavation. Underground and external jobs sit at the higher end. |
| Property size and type | Larger homes, multiple bathrooms and older pipework all add tracing time, which adds cost. |
| Call-out fees | Some companies add a separate call-out charge; others, including DCI, quote a single fixed price with no call-out fee. |
It's worth knowing what these methods are before you weigh up quotes. Thermal imaging reads temperature differences where water is escaping; acoustic equipment listens for the sound of the leak; tracer gas is introduced into the pipework and detected where it surfaces. Used together, they pinpoint the leak before anything is opened up, which keeps the access work, and therefore the cost, to a minimum. That's the core of professional water leak detection: spend a little more on finding it accurately, save a lot on needless damage.
How the cost sits against your insurance cover
For many homeowners the cost is wholly or partly reimbursed, because trace and access cover exists for exactly this. It's the part of buildings insurance that pays to locate a hidden leak and make good the access damage. Limits are typically £5,000 per claim, rising to £10,000 on higher tiers. Admiral, for instance, offers £5,000 on its Gold cover and £10,000 on Platinum, and Aviva pays up to £5,000 towards trace and access.
Set the prices above against those caps and the picture is reassuring: a typical few-hundred-pound detection job sits comfortably inside a £5,000 limit. The cap only really comes into play on big jobs, such as a leak under a solid floor where the access and reinstatement run high. The important thing to understand is what the cover does and doesn't pay for; we explain that in full in our guide to what trace and access cover is. In short, it pays to find the leak and repair the access damage, not usually to repair the leaking pipe itself.
One practical point: ring your insurer before work starts, confirm your limit and excess, and ask whether you can appoint your own specialist. Whoever does the detection, an insurer-ready report is what gets the cost paid back.
Trace and access cost vs DIY
It's tempting to try to save the fee by finding the leak yourself, and there is one useful check you can do: a water-meter test. Turn everything off, read the meter, wait an hour or two with no water used, and read it again. Movement points to a leak somewhere on your supply. That confirms a leak exists, and it costs nothing.
What it can't do is tell you where. Pinpointing a hidden leak without specialist equipment means lifting floors or opening walls on a hunch, and if you guess wrong, you've caused damage and still haven't found it. That's how a job that should have cost a few hundred pounds turns into a much bigger repair bill. Professional non-invasive detection is almost always cheaper overall once you factor in avoided damage, and it comes with the documentation your insurer needs. If your first sign was the bill rather than a visible leak, our guide on a high water bill with no visible leak covers the early checks worth doing first.
What's included in a DCI insurer-ready report
Part of what you're paying for is the report, and not all reports are equal. A claim can stall or be queried if the paperwork is thin, so a proper insurer-ready trace and access report should set out:
- The leak located and confirmed. Where the water was escaping, and how it was verified.
- The methods used. Thermal imaging, acoustic detection, tracer gas and moisture readings, so the insurer can see the work was non-invasive and proportionate.
- Photographic evidence. Images of the findings and the access required.
- The access needed. Exactly what had to be lifted or opened to reach the leak, supporting the access part of your claim.
- Clear, itemised costs, so your insurer can match the work to your cover.
That documentation is the difference between a clean settlement and a back-and-forth with your insurer. For the booking and commercial side of this, see our trace & access service. It's the same insurer-ready report whether your insurer sends us or you appoint us directly.
Trace and access pricing in Cornwall & Devon
Across Cornwall and Devon we work to fixed, upfront pricing with no call-out fees, so you know the figure before we start rather than watching a meter run. Residential leak detection is offered on a no find, no fee basis (subject to terms), so if we can't find the leak, you're not left paying for the search. Because we're local rather than a national franchise sending someone "down from up country," there's no premium for travel and we can usually get to you quickly when a leak is actively causing damage. You get the leak found with minimal disruption, a fair fixed price, and the insurer-ready report your claim needs.
Frequently asked questions
How much does trace and access cost in the UK?
Most domestic trace and access jobs cost between £150 and £1,500, and many straightforward leaks land around £450 to £650. Price guides put the typical figure near £500. It rises for underground or solid-floor leaks that take longer to reach. Your exact cost depends on access and method.
Is trace and access covered by my insurance?
Often, yes. Many buildings policies include trace and access cover, usually capped at £5,000 per claim and up to £10,000 on higher tiers. That cap comfortably covers most domestic detection work, so the cost is frequently reimbursed. Always check your policy schedule for the limit and excess.
What makes trace and access more expensive?
Access difficulty is the biggest driver. A leak under tiles is quick to reach; one under a concrete slab, a driveway or a screeded floor takes far longer and can run into the thousands. The detection method, property size and how deeply the leak is hidden all add to the time on site.
Is it cheaper to find a leak myself?
Rarely. DIY checks like a water-meter test can confirm a leak exists, but they can't pinpoint it without lifting floors or opening walls on guesswork. That risks unnecessary damage and a bigger bill. Professional, non-invasive detection usually costs less overall and gives you an insurer-ready report.
Does the trace and access cost include repairing the leak?
Usually not. The trace and access cost covers finding the leak and reaching it, plus the report. Repairing the pipe or fitting itself is normally a separate job and a separate cost, and any water damage is handled under the escape-of-water part of your insurance claim.
Are there call-out fees for leak detection?
It varies by company. Some charge a separate call-out fee on top of the detection price; others quote a single fixed price with no call-out charge. At DCI we work to fixed, upfront pricing with no call-out fees, and residential detection is offered on a no find, no fee basis, subject to terms.
Want a fixed price to find your leak, plus the report for your insurer?
We trace hidden leaks across Cornwall & Devon with non-invasive equipment, give you an upfront fixed price with no call-out fees, and provide the insurer-ready trace and access report your claim needs.
Call Dickie on 07822 025 911 No Find, No Fee on residential leak detection (subject to terms)