You see moisture or hear hissing. At Ultrices Leak Detection, we detect water pipe leaks quickly and precisely using thermography, acoustics, tracer gas, moisture measurement, and data-driven camera endoscopy.
We locate the source in the wall, floor, ceiling, or crawl space, including at couplings, meters, main valves, and shut-off valves. We identify pressure loss, hairline cracks, and hidden pipe ruptures using measurement data.
You receive a clear leak report and repair advice, plus assistance with your insurer. Our Google reviews score 5 out of 5, read our Google reviews about detecting water pipe leaks.
Table of contents
What is detecting a water pipe leak
Water pipe leak detection involves the targeted tracing of invisible or visible water losses in drinking water pipes and taps without unnecessary demolition work. We combine thermography, acoustic correlation, tracer gas, and endoscopy with expertise in materials such as copper, PEX, and PVC, and in standards such as NEN 1006 and ISSO 55 for drinking water installations. Ultrices Leak Detection operates nationwide, delivers an expert report within three days, and liaises quickly with insurers to provide you with certainty regarding the cause, repair, and coverage. Using professional equipment from FLIR, Radiodetection, Ridgid, and Trotec, among others, we achieve a success rate of ninety-nine percent and offer a no-cure-no-pay service with a guarantee of coverage.
Signs and causes of water pipe leakage
When there is a water pipe leak, you often see subtle but clear signs. We recognize patterns in homes, apartments, and commercial buildings, from basement to attic and in the crawl space. Typical causes include aging couplings, stress corrosion in copper, a damaged PEX bend, or a leaking compression fitting behind a wall. The list below helps you determine what is going on.
- Unexplained loss of pressure: the water pressure drops noticeably or the central heating boiler keeps refilling, often caused by a micro-leak in the cold or hot water pipe
- High water bill: the meter runs without you using water and the water meter test shows continuous flow with closed taps
- Damp spots and mold: rings on the ceiling or wall, peeling paint or laminate, and a musty smell around pipe shafts or behind the toilet
- Local heat or cold in the floor: deviations in floor temperature betray a leak near a pipe or compression joint
- Noise in pipes: hissing or dripping sound at rest that we exactly localize with geophon and correlator

If you want to know immediately how we solve this without any demolition work, read on about our approach or discover our method in Water pipe leak without demolition via leak detection without demolition.
Our leak detection methods without demolition or breaking
We deploy the most suitable technique for each situation, supported by measurement data and imagery. Our choices follow a protocol in which we always start by securing the installation and recording reference values.
- Thermography with thermal imaging cameraFLIR thermography shows temperature gradients in walls and floors, making wet zones and leaks in hot and cold water lines visible.
- Acoustic correlation and geophon: using loggers and an advanced correlator, we determine the leakage noise and calculate the position between two measurement points with high precision
- Tracer gas technology: we fill the circuit with forming ash with five percent hydrogen and detect leakage through the floor, wall, or ceiling with a hydrogen detector for exact pinpointing
- Endoscopy and line localization: with a Ridgid camera and a Radiodetection pipe locator, we follow the routing of pipes in shafts, ceilings, and floors
- Pressure test and moisture measurementTrotec moisture meters and a calibrated manometer provide objective confirmation of the leakage and the system response.
You can find more background and in-depth information on this topic on our Water Pipe Leak Detection page via how water pipe leak detection works.
Step-by-step plan for leak detection from notification to report
We make leak detection predictable and fast. Based on VCA VOL and NEN 3140, we work safely and according to agreement. This is how we handle your report.
- Intake and triageWe analyze your complaint, such as pressure loss or damage, and schedule an emergency if necessary, with on-site service within an hour.
- Pre-inspection and baseline measurement: we check the water meter, shut-off valves, and accessibility, and record reference images and values
- Selection technique: we choose thermography, acoustics, tracer gas, or endoscopy based on material (copper, PEX, PVC) and structural composition
- Localization: we determine the exact leak point without any demolition or breaking and mark the location for targeted repair
- Confirmation and adviceWe validate with a counter-measurement and provide repair advice in accordance with NEN 1006 using KIWA-approved materials and couplings.
- Report and handling: within three days you will receive an expert report with measurement data, photos, cause, consequential damage, and advice for the insurer
Leak detection process request
Costs, insurance and result guarantee
Our rates are transparent for both private and business clients and are often reimbursed under buildings or contents insurance when the cause is not your fault. Thanks to collaboration with insurers and a complete cause-and-effect report, the chance of coverage is high. We work 100% risk-free with no solution, no payment, and a guarantee of coverage, utilizing professional detection equipment and a ninety-nine percent success rate. If you would like to delve deeper into costs and scenarios regarding pressure loss and flow, please take a look. the causes of water pipe pressure lossReady to arrange it quickly, Request your free quote now within 24 hours.
Practical examples and direct assistance
In a terraced house with a high water bill, in collaboration with Waternet, we detected a micro-leak in a compression fitting behind a kitchen wall via a water meter test and acoustic logging. Without breaking anything, we located the leak using tracer gas, and a small-scale opening and repair sufficed. In an apartment with mold spots under a window, FLIR thermography showed a cold, wet zone around a PEX bend in the floor, confirmed by a pressure test and moisture measurement. In a commercial unit with periodic boiler refilling, a leak was found in the hot water riser in the shaft, located using correlation and endoscopy. For a more detailed explanation of detection without demolition, please view our method without heelsCall or WhatsApp us for immediate assistance on 085 2505 217 or email info@Ultriceslekdetectie.nl. We are available day and night, offer nationwide emergency service, work with insurers, and are known for five out of five stars in Google reviews. Our approach is fast, thorough, and clearly documented so that you can quickly live dry and worry-free again with Ultrices leak detection.
Frequently asked questions
How do you recognize a leak in the water pipes and what can you test immediately?
Look out for signs such as a sudden rise in your water bill, persistent damp spots or mold, hissing noises in the pipes, loss of pressure at taps, and warm streaks on the floor in the event of a hot water leak. The quickest check is the water meter test. Close all taps, turn off appliances, and see if the counter or arrow continues to move. Movement without water consumption strongly suggests a pipe leak.
If you see moisture near baseboards or the ceiling, also check the pressure gauge of your central heating system and the crawl space. Call immediately in case of persistent leakage. We are available 24 hours a day, 7 days a week and will help you step by step. If you want to see how thermal imaging reveals hidden pipe leaks, take a look. thermographic bathroom leak detection.
How do we locate a hidden leak in the water pipe without demolition?
We combine multiple measurement methods to pinpoint the exact source of the leak without unnecessary demolition. Examples include thermography with an infrared camera, acoustic correlation with sensitive microphones, ultrasonic detection, tracer gas with a safe hydrogen-nitrogen mixture, endoscopy in hollow spaces, moisture measurements, and targeted pressure tests in accordance with standard drinking water guidelines. This allows us to determine both the leak path and the precise location of the rupture.
Our specialists are VCA VOL and NEN 3140 certified, with 15 years of practical experience and a 99 percent success rate. An example from the field: In a terraced house with damp skirting boards and a ticking water meter, we located a hot water leak under the tiled floor within millimeters using tracer gas. Everything was done neatly and quickly, without any demolition work, with a clear expert report within three days.
How much does water pipe leak detection cost, and does your insurance cover the investigation and the damage?
The investment depends on the building type, accessibility, and piping system. As an indication, expect an inspection fee in the order of several hundred euros, including a measurement report and repair advice. You will receive a free quote from us within 24 hours. Thanks to the no-cure no-pay policy, coverage guarantee, and our partnership with insurers, your inspection is 100 percent risk-free.
Many buildings insurance policies cover leak detection and consequential damage in the event of sudden water damage. Check your policy. If desired, we will liaise directly with your claims handler and provide a complete expert report with photos and measurements within three days. Read how to expedite your case with a sound report via leak detection report for your insurance.
How quickly do you arrive on site in the event of a water pipe leak, and what is the repair process like?
In emergency situations, we are typically on-site within one hour throughout the Netherlands. Upon receiving your report, we take safe first steps, such as shutting off the main valve. On-site, we conduct a targeted intake, locate pipelines, and perform non-destructive testing using professional equipment. Working safely is our top priority, thanks to our VCA VOL and NEN 3140 certification.
Afterwards, you will immediately receive a clear explanation and, within three days, a comprehensive expert report with photos, measurement data, and concrete repair advice for your plumber. We can coordinate with your installer or insurer if desired. For immediate assistance with water damage in wet areas, you can also view our 24-hour service via Emergency leak detection in the bathroom.


