You see damp spots or wet grout and are looking for a bathroom leak investigation. We at Ultrices Leak Detection do exactly this. The clear goal is to find the source without demolition and with a report for insurance.
We check pipes, shower, bath, toilet, washbasin, drain, sealant joints, grout, and underfloor heating. Using thermography, acoustics, dye testing, pressure testing, endoscopy, and moisture measurement, we can see where water is leaking, all the way up to the ceiling.
You get a clear plan and cost savings, proven in practice. Our Google reviews are five out of five. Feel free to read our reviews about bathroom leak investigation and start today.
Table of contents
Bathroom leak investigation definition and purpose
Bathroom leak investigation is the systematic and non-destructive tracing of the source of moisture loss in your shower, bath, sink, toilet, floor, or walls. At Ultrices Leak Detection, we combine building physics, standards such as NEN 1006 for drinking water installations and NEN 3215 for internal sewage systems, and modern measurement methods to accurately find the cause. The goal of this investigation is to provide clarity regarding the origin, extent, and consequential damage, and to supply you with a substantiated plan of action, including an expert report, that your insurer understands. This allows you to carry out targeted repairs, avoid unnecessary costs, and limit downtime in your home or business.
How we detect bathroom leaks without demolition or breaking
We work entirely without demolition or breaking, using professional detection equipment. Our approach is designed for comfort, speed, and certainty. You experience minimal inconvenience while we collect maximum data. We are available nationwide, are often on-site within one hour in urgent situations, and deliver a full report within three days. We are VCA VOL and NEN 3140 certified, work with insurers, and offer a no-cure-no-pay service with guaranteed coverage and a proven success rate of ninety-nine percent.
Methods and technology for leak detection in the bathroom
- Thermography: Infrared inspection using, among other things, FLIR cameras to visualize heat traces from pipes, thermal bridges, and wet zones
- Acoustic detection: Advanced geophones and correlators locate microscopic leak sounds in PEX, copper, or PVC pipes
- Trace gas: Safe gas forming with hydrogen and nitrogen under low pressure with a highly sensitive gas detector for exact pinpointing
- Dye and UV: Fluorescein and UV light follow flow paths through joints, sealant seams, sealing tape, or drains
- Endoscopy: High-resolution inspection cameras such as Ridgid systems view hollow spaces, siphons, and shafts without breaking them open

Common causes and symptoms in the bathroom
- Detached sealant and joints: Outdated silicone or cement-based grout around the shower drain, bathtub rim, or niche allows water to pass through via capillary action
- Defective drain or siphon: Hairline cracks or loose connections in PVC or PP drains behind the wall or under the floor cause hidden leakage
- Pipe corrosion or coupling failureCopper or compression fittings with minimal leakage cause damp spots on the ceiling under the bathroom
- Fault in waterproof membrane: Lack of sealing tape, perforations, or insufficient overlap in the wet zone under tiling
- Passing splash water: Open seams in shower door profiles or floor slope that directs water to the edges
- Visible symptoms: Peeling plaster, discolored joints, mold growth according to RIVM guidelines, musty odor and bulging skirting boards
- Constructive signals: Dark spots on the ceiling, soft spots in the subfloor and elevated moisture levels in plaster or concrete
- Installation related: Loss of pressure in the water pipes, gurgling noises in the drain, and recurring malfunctions with underfloor heating
- Usage-dependent: Worsening after showering or bathing and a decrease during periods of rest indicates superficial water ingress or joint damage
Step-by-step plan for a professional bathroom leak inspection
- Intake and hypothesisWe discuss complaints, year of manufacture, materials, and previous repairs, and make an initial estimate.
- Visual inspection: Inspection of sealant edges, joints, expansion joints, slope, base transitions, and accessible pipes
- Measurement protocol: Selection and combination of thermography, tracer, acoustics, UV, endoscopy, and pressure test according to standardized protocols
- Analysis and correlationWe link measurement data to building physics such as capillary action, vapor diffusion, and flow paths.
- Report and advice: Comprehensive expert report with photolog, cause, exact location, damage pattern, repair advice, and coordination with the insurer
Leak detection process request
Costs, insurer and our guarantees
Our rates are transparent and often covered by buildings insurance in the event of a sudden leak. Thanks to our partnership with insurers, a clear report, and clear visual documentation, you can expedite the claims notification process. You benefit from over fifteen years of experience, business and private services, professional equipment, and a results guarantee with a no cure no pay policy. We are available day and night, deliver five-out-of-five-star quality, and act 100% risk-free for you.
Practical examples and quick help
In an apartment in Rotterdam, thermal patterns and UV dye showed that water was seeping down behind the wall through a damaged waterproofing membrane. Targeted repair of the wet zone and renewal of sealant joints permanently resolved the bathroom leak. In a house in Utrecht, tracer gas confirmed a minute leak in a hot pipe just outside the shower cubicle. Only the exact tile was removed and the connection replaced, without unnecessary demolition. If you would like more in-depth information on our approach to wet rooms and how we work without demolition, read on about bathroom leak detection without demolition . For a targeted diagnosis of a leaking walk-in shower or shower tray, view our explanation on targeted shower leak detection . You can connect directly with an expert by phone or via WhatsApp at 085 080 55 42 or by email at info@Ultriceslekdetectie.nl. If you want quick clarity regarding the investment, request a free quote within twenty-four hours and simultaneously receive an indicative turnaround time and schedule.
We are ready to start your bathroom leak investigation today with a rapid analysis, accurate localization, and clear repair advice that complies with NEN standards and Kiwa-recognized solutions. This way, you protect your home, reduce costs, and regain peace of mind.
Frequently asked questions
How do you recognize that a bathroom leak inspection is needed, and what are common causes?
If you see damp patches on the ceiling below the bathroom, dark or loose grout, mold edges, a musty smell, or if the water meter continues to run while all taps are turned off, a targeted investigation is necessary. We also advise taking action in the event of drips along the shower wall, wet sealant joints around the bath, or a suddenly high water bill. The sooner you act, the less consequential damage there will be.
Common causes include a leaking shower drain or collar, porous grout, damaged waterproofing membrane, outdated silicone sealant, cracks in tiles, a leaking drain or siphon, and a dripping built-in or thermostatic mixer tap. We systematically isolate the source and provide clear repair advice so that you can carry out targeted repairs without unnecessary costs.
How does a bathroom leak inspection without demolition work proceed, and what techniques do you use?
We start with an intake and visual inspection, followed by moisture measurements and zone insulation. We then combine measurement methods into a single conclusive diagnosis. Everything is done non-destructively, so no demolition work is required. Within three days, you will receive a comprehensive expert report with photos, measurement data, and a remediation plan.
We utilize, among other things, camera inspection of pipes and drains and thermography of tiled floors and walls , supplemented by ultrasonic and acoustic testing, UV dye tests, pressure and vacuum tests, and, where appropriate, a smoke test on the drain. Our VCA VOL and NEN 3140 certified specialists work with professional equipment for maximum accuracy.
How much does a bathroom leak inspection cost, and is it covered by insurance?
The price depends on accessibility, surface area, type of pipework, and required measurement methods. You will receive a free quote within 24 hours, and you are 100% risk-free thanks to our "no solution, no payment" principle. With fifteen years of experience and a ninety-nine percent success rate, we offer a solid diagnosis that saves on repair costs. If you would like more certainty beforehand, please view our guide prices for bathroom leak detection.
Many insurers reimburse leak detection for demonstrable consequential damage. We work with insurers daily and deliver a complete leak detection report with photos and measurement data within three days, which is usually accepted. Please note that coverage always depends on your policy conditions. We assist you with substantiation and communication to ensure your claim proceeds smoothly.
What do you do in the event of an emergency bathroom leak, and how quickly will Ultrices Leak Detection be at your doorstep?
Immediately turn off the main valve in case of a supply leak, switch off the power around wet areas, collect the water, and take photos of the damage. Then call our emergency line. We are available 24 hours a day, seven days a week, operate nationwide, and in many cases will be at your door within one hour.
We stabilize the situation, pinpoint the source without demolition work, and provide practical repair advice or temporary sealing. Our VCA VOL and NEN 3140 certified teams work with thermal imaging cameras, acoustic microphones, and endoscopy. With our five out of five Google stars, no cure no pay policy, and coverage guarantee, you choose certainty and speed, for both private and business clients.





