Stop the next leak. Automatically.
Watergate Sonic detects micro-leaks and shuts off mains water instantly if a pipe bursts.
Trusted by UK Insurers
4.6/5 Star Rated
Award-winning Technology
A circuit breaker for your water supply.
You wouldn’t run a home without electrical fuses. Why run water without a safety valve?
Custom safety limits
Configure the device to shut off only if water runs longer than your longest shower or exceeds a specific volume.
Auto shut-off
If a pipe bursts while you are at work, the flow hits that limit, and Sonic physically shuts off the mains water supply.
Micro-leak radar
Sensitive enough to detect 1 drop every 2 minutes. We alert you to developing problems months before they become catastrophes.
Total control. Anywhere in the world.
Going on holiday? Forgot to turn the water off? One tap on your phone secures your home instantly.
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Remote shut-off: Open or close your mains water supply from anywhere.
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Instant notifications: Get alerts the second a micro-leak or abnormal flow is detected.
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The “Check-In”: Worried while you’re away? Open the app, see that everything’s ok, and relax.

We pay for your peace of mind.
Don’t let installation costs hold you back. We are contributing ยฃ100 towards your plumber.
Buy Sonic: Purchase your device from the Watergate shop.
Book Your Plumber: Have it professionally installed by any local qualified plumber.
Claim ยฃ100: Send us your plumberโs invoice, and we’ll refund ยฃ100 of the cost.
Regular Price
ยฃ
299
Installation Cashback
-ยฃ100
Effective Cost
ยฃ199
(+ plumber fees)
Professional integration. Simple for any plumber.
The Sonic is an inline industrial-grade valve, designed for permanence.
Standard fit
Compatible with all standard UK pipework (up to 28 mm).
Routine job
A standard “cut and fix” installation. Any qualified plumber can fit this in under an hour.
Always on
Mains powered for daily reliability (no “low battery” anxiety). Includes optional 4x AA lithium battery backup to keep you protected even during a power cut.

We were halfway across the world when we got the alert.
“We shut off the water remotely and sent our neighbour round to check. The leak had already spilled all over the floorโฆ thank goodness for Sonic or it would have flooded the whole house.โ
– Louis K., London
Loved by customers
FAQ
Find quick answers to the most common questions about Sonic.

Will Sonic work in my home?
Answer a few quick questions to check if your home is compatible with Sonic.

Will Sonic work in my home?
Answer a few quick questions to check if your home is compatible with Sonic.
Cheaper than your insurance excess.
The cost of a burst pipe*
~ยฃ13,000
Financial and emotional pain
Watergate Sonic
ยฃ299
Total peace of mind
*Source: ABI / Zurich average claim data for burst pipes.
Protect your home for the kind of cost you would expect from a plumbing call-out.
Total protection. Zero risk.
30-Day Money-Back Guarantee
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Award-winning Technology














