You see damp patches or the pressure in your underfloor heating drops. In that case, calling in a specialist to detect underfloor heating leaks is smart. We at Ultrices Leak Detection find the leak quickly and without any demolition work.
Using thermography via a thermal imaging camera, acoustic detection, tracer gas, and a thorough pressure test, we inspect the pipes and the manifold. You receive a clear report for the insurer and targeted repair advice.
This way you know where the leak is and avoid unnecessary hacking. Read Our Google reviews 5/5 for underfloor heating leak detection and choose Ultrices leak detection with confidence.
Table of contents
If you suspect a leak in your underfloor heating, you want certainty without unnecessary demolition work. Ultrices Leak Detection is your partner for engaging a specialist to locate underfloor heating leaks. We combine building physics and installation technology with advanced measuring equipment so that you quickly know where the problem lies and how it can be repaired sustainably. We work nationwide for private and business clients, are VCA VOL and NEN 3140 certified, deliver a comprehensive expert report within three days, and assist you with insurers. Always available with emergency service, on-site within an hour, no cure no pay, completely risk-free, and with a demonstrable success rate to virtually certain. Call or WhatsApp 085 2505 217 or email info@Ultriceslekdetectie.nl.
What does professional leak detection for underfloor heating entail?
Engaging a specialist to detect underfloor heating leaks means that we systematically analyze the heating circuit of your home or business premises. We examine the manifold, circuits, pipes in the screed, and connections at the central heating boiler or heat pump. We work according to the principles of EN 1264 for surface heating and utilize our knowledge of PEX and AluPEX pipes with an oxygen diffusion barrier in accordance with DIN 4726. Using thermography, acoustics, pressure tests, and tracer gas, we pinpoint the exact location and cause, without any demolition or breaking work.
Signs, causes, and risks of a leak in underfloor heating
A leak often reveals itself insidiously. Recognize the patterns and address damage early.
- Typical signs: sudden pressure loss in the central heating circuit, wet joints or dark spots in the floor, bulging laminate, a pump running more frequently, air in radiators while only the floor is heating.
- Common Causes: a microcrack in PEX caused by a construction nail, leaking O-rings in the manifold, corrosion in steel parts, faulty press connection at a coupling, thermal expansion at an expansion joint.
- Risks of postponement: mold formation in screed or insulation, saturated anhydrite or cement screed, damage to parquet or PVC, higher energy costs and extra wear and tear on the central heating boiler or heat pump.
- Installation contextSystems with zones, weather-dependent control, mixing valves, and pump groups influence the measurement strategy and are therefore always included.

How we detect a underfloor heating leak without demolition
Our method is non-destructive and tailored to your type of floor finish, screed, and insulation. Think of anhydrite, sand cement, self-leveling floor, parquet, or tiles with EPS or PIR insulation.
- Infrared thermographyUsing calibration cameras from FLIR Systems, we map the thermal images of the piping pattern and identify thermal bridges and moisture traces that indicate a leak path.
- Pressure test and loggingWe isolate groups at the distribution panel and perform a standardized pressure test with manometry and data logging to determine the leakage efficiency per circuit.
- Tracer gas with hydrogenWe fill the circuit with a safe hydrogen-nitrogen mixture and use electronic sniffers so that gas becomes traceable upwards through the smallest opening in the floor.
- Acoustic detectionUsing geophones and ultrasonic receivers, we listen for leakage noise and pinpoint the source, even with thicker screeds or finishes.
- Moisture measurement and endoscopy: capacitive moisture meters and, if necessary, endoscopic inspection along the skirting board or crawl space confirm the leak zone.
If you want more technical depth regarding thermal imaging and leak patterns, read our explanation about thermographic inspection of underfloor heating.
Step-by-step plan from report to repair advice
We keep the process clear and fast so that you stay in control of planning, costs, and insurance.
- IntakeWe record system data such as manifold type, heat source, and floor structure by phone or via WhatsApp, and determine the appropriate measurement strategy, including any urgency.
- Preliminary investigationWe perform baseline measurements on temperature, pressure, and flow rate and separate groups to isolate the suspected circuit.
- Precision detectionWe combine thermography, pressure testing, and tracer gas or acoustics to pinpoint the exact leak location within a few centimeters.
- Reporting: within three days you will receive an expert report with photos, thermal images, measurement data, and clear repair advice that is accepted by insurers.
- AftercareWe coordinate the repair with your installer, provide tips for flushing and refilling, and check for residual moisture to prevent further damage.
Leak detection process request
If you are looking for a compact experiment with clear values, then delve into our pressure test for underfloor heating leakage.
Types of underfloor heating and their specific points of attention
Not every system reacts the same way to a leak. We tailor our method to your installation and floor.
- Wet systems in screed: pipes in cement or anhydrite conduct heat differently than in dry construction, so we fine-tune the heating curve and camera settings accordingly.
- Drywall systems: panels with slots and fins require more acoustics and tracer gas because the heat distribution is flatter.
- Heat pump controlled systems: lower supply temperatures require longer thermal excitation to obtain high-contrast images.
- Mixed installations: Combinations of radiators and underfloor heating circuits are tested separately per circuit to rule out cross-influences.
If you want assurance in advance that we can work without breaking anything, view our method for Underfloor heating leakage without heels.
Costs, insurance and our guarantees
We provide an insurance-compliant report including measurement data and photos to ensure smooth claims handling. We work with major insurers and claims experts. Thanks to efficient planning and specialized equipment, we keep costs manageable and the margin of error minimal. No solution, no payment. You benefit from over fifteen years of experience, professional measuring equipment, a virtually certain success rate, and a reputation averaging five stars on Google. Our service is available day and night and can be deployed nationwide.
Ready to take decisive action and get immediate clarity, request your free quote within a day and we schedule immediately.
When you engage our specialist directly
If you see wet spots in the floor, notice unexplained pressure loss, or if the pump keeps running, acting quickly is advisable. By choosing to hire a underfloor heating leak detection specialist today, you prevent structural moisture damage to the screed and save on energy and repairs. Call or WhatsApp 085 2505 217 or email info@Ultriceslekdetectie.nl and we are ready to assist you. Additionally, if you would like broader insight into leak sources in your property, read more about our service. leak detection without heels.
Frequently asked questions
Recognizing a underfloor heating leak and what to do immediately
You can often recognize a leak by recurring pressure loss in the central heating system or heat pump, more frequent refilling, unheated or noticeably warm zones, wet spots or efflorescence in the screed, warping laminate, gurgling noises, a musty odor, and sometimes a rising water bill. Disconnect the affected circuit from the manifold, switch off the heat source, and clear the suspected zone of rugs or furniture.
At Ultrices Leak Detection, we arrive on-site nationwide within an hour for emergencies. Certified with VCA VOL and NEN 3140, we work without demolition or breaking, using thermography, acoustic measurement, tracer gas, and accurate moisture measurement. With fifteen years of experience, a five-star rating, and a "no solution, no payment" policy, we provide quick clarity and peace of mind.
How a specialist detects a underfloor heating leak without demolition or breaking.
We combine a thermal imaging camera for pattern recognition with pressure tests per circuit, acoustic correlation to trace leakage noise through concrete, and tracer gas with forming gas based on nitrogen and hydrogen. Where necessary, we use endoscopy at the manifold and perform conductivity and moisture measurements to locate the exact fracture or porous coupling.
This non-destructive mix works on PEX and Alupex pipes in sand cement, anhydrite, or concrete beneath tiles, screed floors, or laminate. You will receive an expert report within three days including photos, measurement data, the cause, and practical repair advice. This prevents unnecessary demolition work, minimizes consequential damage, and allows your installer to carry out targeted repairs.
How much does underfloor heating leak detection cost and how quickly is it arranged?
The investment depends on the type of home, number of groups, accessibility, and floor finish. After a brief intake, we will send a free quotation within twenty-four hours with a clear price agreement and no surprises. In urgent cases, we are on-site within an hour and usually complete the inspection within two hours, including initial findings.
Our approach often saves significant demolition and drying costs because we pinpoint the leak precisely. You receive a complete expert report within three days that is immediately ready for repair and insurance purposes. With a ninety-nine percent detection rate, professional detection equipment, and a no-cure-no-pay policy, you, as a private or business client, are assured of results and control.
Insurance and reporting for underfloor heating leak detection
Many buildings and contents insurance policies cover leak detection for water damage to floors and walls. We work with insurers on a daily basis and provide a comprehensive report including photos, measurement results, a determined cause, repair advice, and a realistic cost estimate. If desired, we can coordinate directly with your repairer or contractor.
We guide you through the claim reporting process and ensure that all requested information is complete for quick acceptance. The final coverage always depends on your policy terms and deductible. If you want certainty regarding your situation, share your policy with our team so that we can provide targeted advice and maximize your chances of reimbursement.


