You see the water meter spinning while the water supply is turned off. This often indicates a hidden leak. Consumption increases, and you feel a loss of pressure at the toilet or boiler.
We locate this quickly and neatly with leak detection. Acoustics, thermography, gas tracer, camera inspection, and pressure testing find leaks in floors, walls, crawl spaces, outdoor taps, check valves, and underfloor heating.
We at Ultrices Leak Detection provide advice, photos, and a report for your insurer. Read our Google reviews about leak detection for a water meter that keeps runningCustomers give us 5 out of 5.
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Water meter running while everything is off, water pipe explained
You see the water meter spinning while everything is switched off; the water supply remains closed, yet the counter continues to run. This is a classic sign of a hidden leak or devices running unintentionally, such as a boiler inlet combination. At Ultrices Leak Detection, we explain it simply. A water meter is a volume meter that measures every liter based on mechanical displacement or an ultrasonic signal, in accordance with NEN EN ISO 4064 and certified in the Netherlands by Kiwa. Brands such as Sensus, Kamstrup, and Itron supply reliable meters, meaning that a spinning water meter with closed taps almost always indicates genuine flow and not a measurement error.
How a water meter works and why it keeps running
Most households have a vane meter or disc meter that registers the flow rate at low and high flow velocities. In new construction, an ultrasonic meter is often found that determines the volume via time difference measurement. Due to the static water pressure averaging two to five bar in the drinking water network of companies such as Vitens, Waternet, or Evides, even a small capillary leak can cause a constant flow. The water meter responds to this with visible pulses or a ticking counter.
Main causes of water meter running while everything is off water supply
- Hidden pipe burstA micro-leak in cold or hot pipework behind the wall, in the crawl space, or under the floor causes continuous consumption, often without directly visible moisture.
- Defective inlet combination or reservoir: a dripping inlet combination of a boiler or central heating system, or a toilet that keeps refilling, causes the water meter to run while all taps are closed.
- Installation error or open bypass: an accidentally opened shut-off valve, a leaking mixing tap, or a rerouted section of pipe can cause a hidden flow.
- Automatic filling equipment: water softener, American refrigerator, or humidifier unit refills, causing unexplained pulses on the meter.

Our leak-free detection approach and techniques
We detect water pipe leaks without demolition using certified protocols and professional equipment. We combine acoustic correlation, thermography with FLIR, tracer gas with hydrogen and nitrogen, pressure testing, and endoscopy. These techniques accurately isolate the leak, allowing your installer to carry out targeted repairs. Thanks to our expert report within three days, our partnership with insurers, and guaranteed coverage, you are in a strong position in the event of a damage claim. Read how we detect pipes without demolition and schedule immediately. leak detection without breaking and drillingIf it specifically concerns piping, delve into our method for water pipe leak detection with pressure loggers and data logging on the pulse sensor of your water meter.
Step-by-step plan for water meter running while everything is turned off.
- Close everything: close all taps, switch off the boiler, dishwasher and washing machine, and check if the meter is still moving.
- Insulate per section: close off distributors and groups and check if the water meter stops; this is how you locate the suspect circuit.
- Check toilet and inlet combination: listen to gently flowing water, place toilet paper against the rim of the bowl, and feel the pipes for temperature differences.
- Call the specialist: contact Ultrices Leak Detection directly via 085 2505 217 or WhatsApp and email info@Ultriceslekdetectie.nl for immediate triage.
- Non-destructive detection planWe often arrive nationwide within one hour with equipment and provide a clear report with photos, measurements, and repair advice.
- Request your quote quickly: you arrange in a few clicks your free quote within 24 hours and we schedule the detection at your preferred time.
Leak detection process request
Practical examples in the Netherlands
- Amsterdam apartmentThe water meter was running while everything was switched off. The water pipe behind the kitchen was found to be leaking into the floor structure. Using thermography and tracer gas, the exact location was determined, and only one tile was lifted.
- Rotterdam single-family home: Unexplained high water bill due to a ticking meter. The culprit was a leaking inlet combination. After replacement, standby consumption dropped to zero.
- Utrecht office buildingNighttime base consumption remained three liters per minute. Acoustic correlation and pressure tests found a leak in the steel riser without breakage damage.
- Eindhoven new construction: ultrasonic meter registered pulses. Data logging showed patterns linked to a water softener that was flushing too often, resolved with recalibration.
Costs, insurance and our guarantees
You want speed, certainty, and no risk. We deliver that. We work on a no-cure, no-pay basis, guarantee coverage, and score five out of five stars in Google reviews. Our success rate is ninety-nine percent thanks to top-level professional detection equipment and experienced specialists with VCA VOL and NEN 3140 certification. We are here for private and business clients, nationwide, with an emergency service and availability twenty-four hours a day, seven days a week. You will receive a comprehensive expert report within three days that meets insurer requirements. If you suspect hidden consumption due to a leak with the risk of a high bill, read on about high water bill due to leakage and tackle it today.
Why choose Ultrices leak detection when water meter is running while everything is off in the water pipe?
- Non-destructive security: leak detection without demolition using thermography, acoustics, tracer gas, and pressure measurements according to proven techniques from the trade literature.
- Fast and complete: on-site possible within one hour, available nationwide, includes a clear report with cause, location, photos, and repair advice.
- Transparent and risk-free: free quote within one day, fixed price clearly stated in advance, no-cure no-pay, and support towards the insurer.
- Deep technical knowledge: knowledge of water meters and mains pressure, from Kamstrup and Sensus to Itron, plus practical experience with installations in residential and non-residential buildings.
You are not alone. Call or WhatsApp 085 2505 217 or email info@Ultriceslekdetectie.nl and we will solve it. If the water meter is running while everything is turned off, choose certainty with Ultrices leak detection.
Frequently asked questions
Why is my water meter running while everything is turned off?
A water meter that continues to run while everything is turned off almost always indicates a hidden leak in the supply line after the meter. Often, the source is a compression fitting in the floor, a silent toilet flush, or an open central heating valve. The pressure relief valve of a boiler or boiling water tap can also discharge unnoticed, causing the meter to keep running without visible puddles.
We at Ultrices Leak Detection help you immediately. Turn off the main valve if the meter is running rapidly, note the meter reading, and check the toilets and the central heating filling hose. Using professional detection equipment, we find the leak without any demolition or breaking. We operate nationwide, are VCA VOL and NEN 3140 certified, and deliver an expert report within three days.
How do you quickly test for a leak yourself if the water meter keeps running?
Turn off all taps, ensure the dishwasher and washing machine are switched off, and look at the wheel or star on the meter. Note the reading, wait ten to fifteen minutes, and check again. If the meter is rising, there is almost certainly a leak. Where possible, shut off sections such as the outdoor tap or a shut-off valve to the toilet to contain the source of the problem.
Check the central heating filling system valve or filling hose, as it is sometimes left open accidentally. Note that some meters register a fixed amount of liters per revolution; check the scale on your meter for an accurate estimate. If the meter keeps running and you do not see anything getting wet, the leak is likely hidden behind the wall or floor. Let us conduct a targeted search or read more about invisible bathroom leaks via our explanation about hidden bathroom leaks.
Where is the leak often located when the water meter is running without use, and how do we find it exactly?
Common causes include a micro-leak in the cold water supply under the screed, a hot water pipe after the combi boiler, a leaking concealed toilet cistern, or a damaged pipe to the outdoor tap. In crawl spaces and shafts, we often see damp spots or salts that give the place away, but sometimes everything remains hidden from view while the meter is ticking.
We combine acoustic correlation, tracer gas with a hydrogen-nitrogen mixture, thermography, and endoscopy to pinpoint the exact break. Completely non-destructive and with a high success rate. We support your insurance claim with a clear measurement report. Curious how thermal imaging reveals hidden pipes? Then take a look. our thermographic approach for bathroom leaksIf it is urgent, we will forward it directly to our team.
How much does leak detection cost if your water meter keeps running, and is this covered by your insurance?
The costs depend on the situation, accessibility, and required techniques. You will receive a free quote within 24 hours, and we work on a no-cure, no-pay basis where appropriate. If desired, we will arrive on-site within one hour with professional equipment and deliver a complete expert report within three days, including photos, measurements, and repair recommendations.
Insurers often cover leak detection and consequential damage under buildings or contents, depending on your policy. We work with insurers daily and help you with the correct documentation. If you want to know exactly what they require and how to strengthen your claim, take a look. our sample report for bathroom leaks and insuranceThis way, we speed up the settlement together and you limit the damage.


