Water damage is among the most common and most expensive types of claim in German households. While most people initially think of intrusion protection or smoke detectors when it comes to safety, escaping water causes damage running into the billions every year. The treacherous thing about it: a burst pipe or a leaking washing machine can destroy entire homes within a few hours – especially when no one is at home. Modern sensor technology offers reliable protection here, detecting leaks early and automatically cutting off the water supply. In this article you will learn how to comprehensively protect your home or business from water damage using intelligent solutions.
Water damage in Germany – the underestimated danger
The figures from the German Insurance Association (GDV) paint a clear picture: water damage is by far the most expensive source of claims under residential building insurance. Statistically, a domestic water damage incident occurs in Germany every 30 seconds. That amounts to over a million cases a year – and the trend is rising.
Particularly striking: the average settlement cost per claim exceeds €3,000. For larger incidents – such as a burst pipe in an intermediate ceiling that is noticed only late – costs can quickly rise to between €20,000 and €50,000. On top of that there are often months of drying, mould formation and a considerable impact on quality of life. For businesses, water damage also frequently means business interruption and loss of turnover.
The good news: the vast majority of this damage would have been avoidable – if the escaping water had been detected early and the supply had been cut off automatically. This is precisely where intelligent water protection technology comes in.
The most common causes of water damage
To protect yourself effectively, you need to know the typical sources of risk. The most common causes of water damage in Germany fall into five main categories:
1. Burst pipes and pipework damage
Age-related corrosion, frost damage in winter or poorly executed installations frequently lead to burst pipes. Concealed pipework in walls and ceilings is particularly dangerous, since escaping water is often noticed only when considerable damage has already occurred to the building fabric. In older buildings with pipework systems that are 30 years old or more, the risk rises significantly.
2. Washing machines and dishwashers
Defective supply hoses, worn seals or blocked drains on household appliances are among the most common causes of water damage in private homes. A burst supply hose can release several hundred litres of water per hour – particularly disastrous if the appliance is running while you are out of the house.
3. Heating systems
Leaking radiators, defective expansion vessels or corroded heating pipes can also cause significant water damage. Heating water also often contains corrosion inhibitors that incur additional cleaning costs and leave particularly stubborn stains.
4. Bathrooms and sanitary fixtures
Leaking silicone joints, damaged tiles, dripping taps or overflowing bathtubs cause creeping moisture damage. These chronic leaks are especially insidious because they often become visible only after months through mould formation or peeling paint.
5. Sewer backflow and heavy rain
During extreme rainfall, water can back up through the sewerage system into cellar areas. Without a backflow valve and suitable sensors, such damage often remains undetected for hours – particularly in cellar rooms that are not used regularly.
Ajax LeaksProtect – precise leak detection
The Ajax LeaksProtect is a highly sophisticated water sensor designed specifically for the early detection of leaks. With its compact dimensions and well thought-out technology, it sets the benchmark in intelligent water protection. The sensor integrates seamlessly with the Ajax automation system and, together with the WaterStop valve, forms a complete protection solution.
Technical highlights in detail
| Feature | Specification |
|---|---|
| Contact pairs | 4 pairs – early detection from any angle |
| Height | Only 14 mm – fits under any washing machine |
| Protection class | IP65 – fully dust-tight and splash-water-protected |
| Battery life | Up to 5 years on a single battery |
| Contact material | Nickel-plated contacts – corrosion-resistant |
| Self-reset | Automatic reset after drying |
| Radio range | Up to 1,300 m in open space (Jeweller protocol) |
The four contact pairs are arranged symmetrically on the underside of the sensor. As soon as water stands even a fraction of a millimetre high, the LeaksProtect detects the moisture and sends a signal to the control panel within milliseconds. The nickel-plated contacts are particularly resistant to the minerals and limescale contained in tap water – a common problem with cheaper sensors, which begin triggering false alarms after just a few months.
A particularly practical feature: once dry, the sensor resets itself automatically, without any need for manual intervention. This is especially important in areas where splash water can occasionally occur – next to a shower or near a sink, for example.
Ajax WaterStop – automatic shut-off in 7 seconds
Detection alone is not enough – what matters is the automatic response. This is where the Ajax WaterStop comes into play: a motorised shut-off valve which, on a signal from the LeaksProtect sensor, fully cuts off the water supply within just 7 seconds. This limits the damage to an absolute minimum – even if you happen to be hundreds of kilometres away on holiday.
Technical specifications
- Closing time: maximum 7 seconds from alarm signal to full shut-off
- Torque: 8.5 N·m – sufficient force even for limescaled pipes
- Connection sizes: 1/2 inch, 3/4 inch and 1 inch – suitable for all common domestic water installations
- Manual operation: can also be operated manually during a power failure
- Remote control: opening and closing via app from anywhere in the world
- Status feedback: real-time information on the current valve state
Installation takes place directly at the main water connection or at critical points such as the supply line to the washing machine. For commercial premises we recommend installation at several strategic points in the pipe system, so that individual areas can be shut off in a targeted manner without interrupting the entire water circuit.
The complete protection scenario
The true strength of intelligent water protection unfolds in the interplay of all components. Imagine the following scenario: it is Sunday morning, you are visiting family – and in your cellar an outdated supply hose on the washing machine bursts.
Step 1: Detection
The Ajax LeaksProtect under the washing machine registers the first drops of water within seconds. Its four contact pairs guarantee that the leak is reliably detected regardless of the direction of water flow.
Step 2: Alarm
The Ajax control panel receives the signal and immediately triggers the water alarm. All indoor sirens in the house emit a special signal tone that clearly differs from the intrusion or fire alarm.
Step 3: Automatic shut-off
Simultaneously, the control panel sends the command to the Ajax WaterStop at the main water connection. Within 7 seconds the valve is closed – no further water can flow. The damage is limited to a few litres.
Step 4: Notification
Within seconds you receive a push notification on your smartphone with precise information on which sensor has triggered and confirmation that the water has already been shut off. You therefore know immediately what has happened and that the situation is under control.
Step 5: Professional assistance
If required, a tradesperson emergency service can be alerted directly via the system to assess the damage on site and initiate immediate repairs. This reduces the time between detection and resolution to a minimum.
“Water damage that is stopped within 10 seconds causes an average of less than €50 in damage. Without automatic shut-off, this can rise to several thousand euros within just one hour.”
Insurance benefits through proactive protection
Installing an intelligent water protection system can also pay off financially – and not only in the event of a claim. More and more insurers reward preventive measures with better terms on their residential building and contents insurance.
In concrete terms this means for you:
- Lower premiums: some insurers grant discounts of 5 to 15 percent on the annual premium when a certified water protection system is installed.
- Faster claims settlement: through the system’s complete documentation (alarm time, shut-off time, notifications), claims processing is considerably accelerated.
- Lower excess: some tariffs offer a reduced excess if it can be shown that preventive measures were in place.
- Better negotiating position: when selecting a new insurance tariff, a professional protection system strengthens your negotiating position with the insurer.
Speak with your insurance advisor about the possibilities. In many cases the investment in a water protection system pays for itself through premium savings within just a few years – quite apart from the invaluable protection it provides against an actual claim.
Holiday protection – travel without worry
Longer periods of absence are particularly critical: while on holiday, on a business trip or visiting friends for the weekend, an undetected water escape can cause enormous damage over hours or even days. Traditionally, insurers and tradespeople recommend manually closing the main water tap before a longer absence. With the Ajax WaterStop this step becomes part of your intelligent departure routine.
The Ajax automation scenarios allow the shutting off of water to be seamlessly integrated into your daily life:
- Departure scenario: when arming the alarm system for holiday mode, the WaterStop is closed automatically. You do not need to think about anything.
- Arrival scenario: on your return, when the system is disarmed, the valve opens automatically.
- Remote control: should a trusted person need access during your absence (for watering the plants, for instance), you can temporarily open the valve via the app and then close it again.
This automated protection gives you the assurance that your home is comprehensively protected even in your absence – against water as well as intrusion and fire. Find out more in our guide “Travelling safely – How to protect your home while on holiday”.
Integration with the tradesperson emergency service
A unique advantage of the Protexium system is the close cooperation with the Fürst Group, a nationwide tradesperson emergency service. In the event of a water alarm, not only is the water supply automatically cut off and the owner notified – a specialist tradesperson can also be alerted directly if required.
This service is particularly valuable in the following situations:
- Owner’s absence: when you are hundreds of kilometres away, a technician on site can assess the damage and take initial protective measures.
- Rental properties: as a landlord you are informed immediately and can authorise a tradesperson – without tenants having to wait hours for help.
- Commercial premises: in shops, offices or practices, water damage outside opening hours can be devastating. The emergency service ensures that help arrives quickly.
The combination of automatic technology and human intervention ensures that a professional response to water damage is available at any time of day or night. This closes the gap between detection and full resolution of the problem.
Conclusion – prevention rather than remediation
Water damage need not be a matter of fate. With the right combination of intelligent sensors and automatic shut-off valves, you reduce the risk dramatically. The Ajax LeaksProtect detects leaks early and precisely, the Ajax WaterStop cuts off the water supply within 7 seconds – and integration into the Protexium security system additionally enables immediate notification and the alerting of specialist personnel.
Investing in an intelligent water protection system pays off in several ways: you protect the building fabric, avoid months of remediation, benefit from better insurance terms and gain the certainty that your home is safe even in your absence. Whether as a complement to your existing fire protection and water damage protection system or as an entry point to intelligent home security – protection against water damage should feature in every modern security concept.
