A water-damage claim
every 7 minutes.
Not yours.
Vattenlarmet detects the leak, shuts the water off, and alerts the right person — in under 8 seconds. You don't have to be home, and you don't need an app open.

Resolved in 7.4 s
Valve closed · SMS sent
No damage occurred.
Sweden is leaking.
Every minute, every day.
Water damage is the most expensive claim type in Swedish properties — and it grows every year. A single leak can cost hundreds of thousands of kronor and force you out of your home for months.
Cost of water damage in Sweden each year
The single most expensive claim category for insurers — rising faster than inflation.
New water-damage claims reported daily
That's one every 7 minutes, all year round. Dishwashers, freezers, in-wall pipes and toilets cause most of them.
Average cost per claim
Plus 4–6 months of remediation, drying and renovation. Many residents have to move out in the meantime.
Source: Svensk Försäkring, Water-Damage Report 2023–2024.
Water won't wait.
Neither do we.
How we stop the damage
before it has even started.
The sensor detects
A drop of water hits the sensor on the floor or by a pipe joint and the signal fires instantly.
Gateway raises alert
The LoRaWAN signal reaches the gateway — it still works when home Wi-Fi or internet is down.
Valve closes
The motorised valve on the incoming line physically shuts. No more water can escape.
You're notified
SMS and email reach every alarm recipient with the exact location, time and device ID.
This isn't yet another
app you have to keep open.
Other systems need Wi-Fi, a background app and an operator to call you. Vattenlarmet closes the water on its own — that's the whole point.
Works without the internet
LoRaWAN radio reaches from basement to attic, even when broadband is down or the router is dead.
No app needs to be running
An SMS hits your phone directly — no notification you might have muted, no dead battery.
Physically closes the valve
A motorised ball valve on the incoming line — not just a buzzer no one hears.
Monitored by Vattenlarmet
Operations, alarms and status are watched 24/7 by our team in Sweden — ISO 27001 certified.
Basic or Pro?
Two complete systems. Same core technology. Pick the one that fits the size and needs of your property.

For homes, apartments and holiday cabins
Vattenlarmet Basic
- 1 motorised valve + 2 leak sensors
- Plug-and-play installation by a plumber
- SMS and email on alarm

For property owners and commercial sites
Vattenlarmet Pro
- Multiple valves and unlimited sensors
- Per-apartment alarms and hierarchy
- API and integrations with property systems
Damage that never happened.
Dishwasher started leaking in the middle of the night
The valve closed within 8 seconds. The property manager was alerted by SMS and on site by 07:00. Zero follow-on damage.
Burst pipe in the crawl space — the family was away
The alarm reached the owner's phone on holiday. A neighbour shut the main valve the same evening. Saved roughly SEK 180,000.
Toilet overflowed on the 3rd floor
The system identified the exact sensor. Cleaning was on site within 15 minutes. No complaints from the tenants below.
Protection for every budget.
Home
House & apartment
Peace of mind at home — for you and your family.
Property
Landlords & co-ops
Scale to hundreds of apartments. One single view.
Pilot
Test before roll-out
Try the system in one building before going wide.
Audited against international standards



Vattenlarmet is operated by Partsnord Europe AB — a Swedish company with a background in defence and industrial IT. Same standards. Same discipline.
Protect your property today.
Before the water decides for you.
A 15-minute consultation is enough to know whether Vattenlarmet fits your property. Free and no obligation.
Operated by Partsnord Europe AB · support@vattenlarmet.se
