Non-Invasive Leak Detection

Water Leak DetectionFind It Without Breaking Walls.

Rising water bill, a damp patch or a musty smell with no obvious cause? We trace hidden leaks using acoustic detection, thermal imaging and pressure testing, so we know exactly where to look before any wall or floor is opened.

Non-Invasive
Detection Methods
Written Report
Every Survey
Fixed-Price
Surveys
First Call Home Services engineer
✓ Non-Invasive Detection
✓ Full Written Report
✓ Fixed-Price Surveys
✓ Gas Safe & Insured

What We Do

Modern detection equipment finds the leak before we open anything up.

Acoustic Leak Detection

Listening equipment picks up the sound of water escaping through walls, floors and underground pipework, narrowing down the leak's exact location.

Thermal Imaging Survey

Thermal cameras reveal the temperature differences caused by a hidden leak behind plaster, under tiles or beneath flooring.

Pressure Testing

Isolating sections of your pipework to identify which part of the system is losing pressure, confirming whether a leak exists before any tracing begins.

Leak Access & Tracing

Leaks under concrete slabs, below floorboards or behind tiled walls, located and marked before any opening-up work starts.

Water Meter & Usage Checks

Checking your water meter against typical usage patterns to confirm and quantify a suspected leak.

Full Written Report

A detailed report and repair quote you can use for insurance claims or to plan the next steps with confidence.

Pricing

Clear, fixed prices for every type of leak detection survey.

Survey
Leak Detection Survey
from
£120
per visit
  • Pressure test of the system
  • Basic leak trace
  • Written summary of findings
  • Quote for repair
Book Now
Detection + Repair
Detection & Repair
from
£280
from
  • Full detection survey
  • First-visit repair where accessible
  • Written report included
  • 90-day guarantee on repair
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Signs You Might Have a Hidden Leak

Not every leak is obvious. These are the warning signs worth acting on.

Rising Water Bill

A noticeable increase in your water bill with no change in household usage is often the first sign of a hidden leak.

Damp Patches or Staining

Discoloured patches on walls, ceilings or skirting boards, especially ones that keep coming back after cleaning.

Musty or Damp Smell

A persistent damp smell in a room with no visible cause can point to water sitting somewhere it shouldn't be.

Sound of Running Water

Hearing water moving through pipes when every tap and appliance in the house is switched off.

Low Water Pressure

A sudden or gradual drop in pressure can mean water is escaping somewhere before it reaches your taps.

Cracking or Lifting Flooring

Flooring that lifts, cracks or feels soft underfoot, particularly near a bathroom or kitchen, can indicate a leak underneath.

Frequently Asked Questions

We use acoustic listening equipment, thermal imaging and pressure testing to narrow down a leak's location before any wall, floor or tile is opened. In most cases we can pinpoint the leak to within a small area.
A standard leak detection survey starts from £120. A full acoustic and thermal trace with a detailed written report starts from £180. We agree the price with you before any work begins.
Common signs include a rising water bill, damp patches on walls or ceilings, a musty smell, low water pressure, or the sound of running water when everything is switched off.
Yes. Acoustic detection and pressure testing can trace leaks under concrete slabs, below floorboards and behind tiled walls without needing to break up the floor first.
In most cases, yes. Where the leak is accessible we can carry out the repair on the same visit. For anything more involved, we will give you a fixed price before starting.
Many home insurance policies cover the cost of tracing a leak, and some cover the resulting repair too. We can provide a full written report and invoice for your insurer.

What Happens During a Leak Detection Visit

We start by talking through what you've noticed, whether that's a rising bill, a damp patch or an unexplained sound, since this helps us narrow down where to begin looking.

From there we use pressure testing to confirm whether the system is losing water, then bring in acoustic equipment and thermal imaging to trace the leak to its source without opening up walls or floors unnecessarily.

Once we've located the leak, we mark the spot and talk you through what we've found, including a fixed price for the repair if you'd like us to carry it out.

Every survey comes with a written report you can keep for your records or pass on to your insurer if the leak has caused any damage.

Suspect a Hidden Leak? Get It Traced.

Non-invasive detection with a full written report, so you know exactly what's going on before any wall or floor is touched.

Call Now: 02476 950 595