Detecting underfloor heating leaks is quick and easy if you notice your floor remaining wet, your boiler pressure dropping, or warm spots appearing spontaneously. We handle this professionally using thermography, acoustic detection, and tracer gas techniques to prevent major damage. When dealing with an underfloor heating leak, you want to know clearly: where is the problem and how is it occurring? Think of leaking couplings, cracks in plastic pipes, or rust formation in piping systems. We are experienced in accurately locating leaks without any disruptive work. With our well-thought-out approach, you save on unnecessary repair costs and prevent hidden damage. Read our Google reviews about underfloor heating leak detection at Ultrices leak detection and see why we make the difference.
Detecting underfloor heating leaks: What exactly does it entail?
Detecting underfloor heating leaks requires specialized knowledge and the right equipment. Throughout the Netherlands, we at Ultrices Leak Detection regularly deal with underfloor heating leaks in homes, commercial buildings, and new construction. If water is disappearing from under your floor or you notice continuous pressure loss in your central heating system, you may have a leak in your underfloor heating. We use the latest detection techniques, such as thermography, infrared cameras, and ultrasonic detectors, to locate damage in pipes under the floor without any demolition work. The unique aspect of modern leak detection is that virtually no damage is caused to the floor. The combination of various methods guarantees our effective approach, ensuring you know exactly where the leak is located. Smart use of tracer gas, digital hygrometers, or infrared cameras makes it possible to quickly find any type of leak, even if it is deeply hidden under tiles or concrete.
How does detecting an underfloor heating leak work?
If you notice any signs of a leak in your underfloor heating system, such as damp patches or low system pressure, contact us immediately. As specialists, we combine several steps to pinpoint a leak with centimeter-level accuracy. We follow this proven approach:
Table of contents
- Analysis of the heating systemWe examine the piping diagram, construction, and installation method of your heating system.
- Inspection with measuring equipmentThe use of infrared cameras and ultrasonic microphones, among other things, detects deviations in heat patterns and water sounds through the floor.
- Tracer gas methodIn case of unclear damage, we fill the pipework with a special tracer gas that escapes even through small openings and can be located with sensitive equipment.
- Reporting and repair adviceAfter accurately locating the fault, we prepare a clear report, including repair advice for the installer or insurer.
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Different types of underfloor heating leaks and causes
Leaks in underfloor heating don't always develop in the same way. Sometimes there's obvious damage after renovation, sometimes it's caused by aging of the pipework. Loss of water pressure is the most common sign of an incipient leak. Loose fittings at bottlenecks or punctured pipes are other common causes. Below is an overview of the most common types of leaks:
- Pipes leaking due to external damage: For example, when inserting a screw or drill during DIY work.
- Wear and tear due to age: Plastic pipes such as PE-RT or polybutylene can wear out or become brittle over time.
- Incorrect installation: Incorrect connections or bottlenecks are a source of water leakage.
- Corrosion in plastic or metal pipes: Metal couplings can partially corrode, leading to small cracks.

Leak detection techniques without breaking or chiseling
The advantage of working with Ultrices leak detection is that we leave the floor intact. We employ various methods, depending on the situation. Using a thermal imaging camera immediately reveals where heat anomalies appear. In questionable cases, we resolve the issue with tracer gas or ultrasonic detection. This combination ensures a reliable, on-site diagnosis, right at your home or office.
- Infrared technology: Making temperature differences on the floor visible without breaking open the floor.
- Tracer gas method: Detecting very small leaks without causing damage to floors or finishes.
- Ultrasonic detection and acoustic leak detection: Sound abnormalities in pipes are detected with an ultrasonic detector.
- Moisture measurement in floor: Precise determination of the amount of moisture in the floor and through which channel it comes up.
Curious how these innovative techniques can also solve other moisture problems in your home? Read more about effective moisture control for moisture problems in the home.
Process from first report to solution at Ultrices leak detection
If you suspect a leak, we act immediately. Call or text us at 085 080 55 42 or email info@ultriceslekdetectie.nl. We usually arrive on-site within one hour, even in emergencies. After a brief on-site consultation, we conduct a technical inspection, and you'll receive an expert report recognized by insurers within three days. Our approach is completely hands-off and always on a no-win, no-fee basis. Thanks to our partnerships with major insurers, we offer nationwide coverage and have been the leading specialist in the Netherlands for over 10 years.
Common Misconceptions and Practical Examples
The biggest misconception is that a leak always causes visible wet spots. Often, the symptoms are subtle: a slightly musty smell, slight discoloration of grout, or a suddenly stagnant underfloor heating system. Rising heating costs are a common sign; a heat leak indicates declining system efficiency. A pipe can also be damaged during renovations or after installing a new shower system. We have inspected thousands of floors in collaboration with Univé, Centraal Beheer, and Interpolis, among others.
- Invisible leakage: No clear water flow, but there is pressure loss or moisture under the floor.
- Difficult to find source: A leak is sometimes only discovered after months because it is deep beneath the finished floor.
- Combination problems: Leakage leads to mold formation or loose laminate.
- Incorrect diagnosis: People often think it is a roof or facade leak, while the source is under the floor.
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Need quick help with underfloor heating leakage?
With Ultrices leak detection, you're guaranteed immediate, expert assistance without any damage from chipping or breaking. We're VCA certified, always available, and deliver every job with a clear report. Whether you live in Amsterdam, Eindhoven, Utrecht, or Groningen, we can often be on-site within an hour. Request a quote now clear, no-obligation quote within 24 hours for your underfloor heating leak and tackle that leak thoroughly together with us!


