Leak detection
Onboard sensors track water moving through the line and learn what a normal flush looks like. A flow that runs long, or never stops, reads as a leak.
Now taking waitlist sign-ups
The logical way to stop leaks fast
Most toilet leaks are silent — no puddle, no sound, just a water bill that keeps climbing. LeakLogik watches the flow, spots the leak, and shuts the water off before it costs you.
Fits a standard toilet supply line · Matter over Thread · One model, every feature
Leak detectedAbnormal flow, 14 min
Water shut offAutomatically, in seconds
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Gallons a single leaking toilet can waste per day
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Share of household toilets estimated to be leaking right now
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What an undetected leak can add to a yearly water bill
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Typical install time — inline, between valve and tank
The silent leak
You won't hear it. You'll just pay for it.
A worn flapper or a misaligned fill valve lets water trickle from the tank into the bowl, 24 hours a day. There's nothing to see and often nothing to hear — the first sign is a water bill that has quietly doubled.
- Always watching. LeakLogik measures flow continuously, not on a schedule.
- Knows a flush from a fault. Normal refills pass through; a trickle that never stops doesn't.
- Acts on its own. Detection and shutoff run on the valve — no cloud round-trip, no subscription, no waiting for someone to notice.
How it works
Three steps, no thinking required
Install it once between the shut-off valve and the tank. From then on, LeakLogik does the rest.
Automatic shutoff
The valve closes on its own and holds the supply shut — stopping the waste at the source instead of letting it run until the next bill arrives.
Smart alerts
The valve reports over Matter the moment a leak is caught, so the alert lands in the smart home app you already use — and you can book the repair on your own schedule.
Matter over Thread
Savings calculator
What is a silent leak costing you?
Move the sliders to match your situation. The maths is simple — and so is the fix.
Wasted before it's caught
$216
Water wasted18,000 gal
Per year, unchecked$876
Equivalent showers1,059
Estimate only — based on the values you selected, a 17-gallon shower, and a leak that runs continuously.
The hardware
Small, inline, and out of sight
Drag to spin it. LeakLogik sits on the supply line behind the toilet — no tank modifications, no rewiring, no proprietary bridge.
Drag to rotate · scroll to zoom
Fits what you already have
Standard toilet supply connections. It goes between the shut-off valve and the tank, with the fittings you'd expect.
Runs on its own
Battery powered, with detection and shutoff running on the valve itself. If the network drops, it still closes — connectivity adds reporting, not the safety.
Fails safe
When something looks wrong, the default is to close. Stopping the water is always cheaper than letting it run.
Connectivity
Matter over Thread, built in
There's one LeakLogik, and it does everything. It speaks Matter over Thread, so it joins the smart home you already have instead of asking you to install one more app.
Speaks Matter
Matter is the cross-vendor standard the big platforms agreed on. LeakLogik shows up as a normal device — no bridge, no separate account, no vendor lock-in.
Thread, not Wi-Fi
Thread is a low-power mesh. Every mains-powered Thread device nearby extends the range, so a valve tucked behind a toilet still gets a reliable signal — and the battery lasts.
Local first
Commands and alerts travel over your own network. The internet going down doesn't stop a leak being caught, and nothing about your water use has to leave the house.
Everything's included
No tiers, no upsell, no feature held back for a more expensive model.
- Continuous flow monitoring — every hour of every day
- Automatic water shutoff — at the source, in seconds
- Push alerts the moment a leak is stopped
- Usage history per fixture
- Every valve in one view
- Maintenance reminders
- On-device status indicator
- Local detection with no cloud dependency
Alerts reach your phone through a Thread border router — you may already own one, since recent Apple TV, HomePod, Echo, Nest and SmartThings hubs include it. Without one, the valve still detects leaks and shuts the water off on its own; it just can't tell you about it.
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Questions
Before you ask
Do I need a plumber to install it?
No. LeakLogik goes inline on the flexible supply line between the shut-off valve and the tank — the same connection you'd undo to replace a supply hose. Shut the valve, swap the line, open it again.
How does it tell a flush apart from a leak?
A flush is a short, high-volume refill that ends. A leak is flow that keeps going, or repeats far more often than anyone is actually using the toilet. LeakLogik watches the shape of the flow over time rather than any single moment.
What happens after it shuts the water off?
The supply stays closed so nothing more is wasted, the valve shows its status on the device, and a notification lands in your smart home app. Once the flapper or fill valve is repaired, you reopen the supply and LeakLogik goes back to monitoring.
What is Matter over Thread, in plain terms?
Matter is the shared language smart home devices agreed on, so one device works across Apple Home, Google Home, Amazon Alexa and SmartThings rather than only one of them. Thread is the low-power radio mesh it travels over — think of Matter as the language and Thread as the road. Together they mean LeakLogik pairs like any other device and doesn't need its own app or account.
Do I need Wi-Fi, a hub, or a subscription?
No Wi-Fi and no subscription. For alerts to reach your phone you do need a Thread border router, which is a box you may already own — recent Apple TV, HomePod, Amazon Echo, Google Nest and SmartThings hubs all include one. Without a border router the valve still monitors flow and shuts the water off by itself; you just won't get the notification.
Is there a Pro version?
Not any more. There used to be two tiers; now there's one LeakLogik with every feature in it — alerts, history, multi-valve views and maintenance reminders included.
Will it work on my toilet?
It's designed for standard residential and light-commercial toilets with a conventional supply connection. If you have something unusual, email us before you order and we'll tell you honestly whether it fits.
When can I get one?
We're building out the first production run now. Join the waitlist and you'll hear from us first when units are available — no charge and no commitment to sign up.
Stop paying for water you never used
Join the waitlist and be first in line when the next production run ships. It takes about thirty seconds.
Join the waitlistNo payment required · Design and specifications subject to change