Leak Defense
Where do you need protection?
Homeowners
A solution for every living situation
Houses
Let Leak Defense keep watch over the plumbing you can’t see and place POLDs near your valuables or high-risk areas like washing machines for instant shutoff.
Insurers offer incentive programs to policyholders who have the Leak Defense System installed in their home. Here are the insurers we’ve partnered with to bring you savings!

Multi-family
Can’t cut pipe? Identifying the problem is half of the solution. Be notified anywhere in the world when the Leak Defense System senses a leak or moisture is detected by a Point of Leak Detector.
Home Builders
Stay dry during construction and add value when it’s time to sell with the most durable leak detection system that’s easy to install and manage anywhere.
High Rise Buildings
Protection at every level
Interested in commercial applications?
Commercial SolutionsGood
Place Point of Leak Detectors (P.O.L.D.) and leak detection cable throughout the building to be notified as soon as moisture is detected. Then you control the water to that stack with the touch of a button, buying you time to address the leak without allowing further damage to occur.
Better
Floor sensors, leak detection cable, and the original Leak Defense System monitoring each stack for leaks and freezing temperatures.
Best
Floor sensors, leak detection cable, and the original Leak Defense System monitoring each unit for leaks and freezing temperatures. If a leak is detected by the Leak Defense System at the unit or further upstream in the stack, the water will automatically be shut off and you will be notified.
Commercial
Protect your investment
Interested in commercial applications?
Commercial Solutions- Monitor the status of ALL Leak Defense units from one dashboard
- Effective in catching all types of leaks
- Turns off water automatically if your settings are exceeded
- Turn off water from anywhere using our custom APP
- Monitor and receive alarm notices on your devices
- Provides 24/7 monitoring of water flow
- Can shut off water to selected zones or entire building
Fits Any Size Pipe from 3/4″ to 3″
The Leak Defense System is available in pipe sizes from ¾” to 3″, so it fits any application.
Get Your Free EstimateHow it works

- Easy to use control panel and app for remote management.
- Originally created to catch pinhole and slab leaks
- Can detect leaks behind walls and in ceilings
- Automatically shuts off water if leak is detected
- Designed to tie into a security system for additional notification
- Provides one-touch turn off of incoming water supply
- May help reduce water consumption for added savings
- Flexible and expandable to meet individual needs


Leak Defense System Valve
The Leak Defense System automatic water shut-off control valve is installed on the structure’s incoming waterline. Once installed, it monitors water flow 24/7. There’s a pipe size to fit every application from ¾" to 3". It’s the best water leak detector on the market for leak protection!


Control Panel
Water usage varies in every application. The user-friendly wireless control panel lets you set your Leak Defense System to fit the water usage needs of your family’s lifestyle, business or building needs. It can also be connected to a 3rd party monitoring company to make sure an alert always gets attention even if you’re nowhere around.


Your Mobile Devices
Going on vacation? Have a vacation home and want to make sure all the plumbing is water tight? Simply register your device at catchaleak.com and enjoy remote control of your Leak Defense System. If you have multiple systems, you can monitor and control each system individually.. This feature is especially valuable for someone who owns multiple residential properties.
Monitor your device from anywhere in the world. Be notified if there’s a problem.

Access the app today
Patented Technology.
Not all flow sensors are created equal. A detection system is not a guarantee that you won’t have leak, but this kind of durability, sensitivity, and quality technical support when you need it mean that if a leak happens you can count on the device to detect it, take action, and never be in the dark again. With no moving parts and a full-port flowbody, we can offer you pinhole leak detection and no drop in your water pressure.
We can do it all.
We have a variety of accessories that have been developed to make the transition to a leak free life as fluid as possible. From outdoor timers to an Alarm Panel Interface that lets you automatically put your system in the Away mode when you arm your security system.
Leak Defense System available in 7 sizes from 0.75″ to 3″.
Made with full-port, Italian-made Bonomi valves and actuators. Developed and assembled in San Diego, CA.
What makes the Leak Defense System different?
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Elegant sensor technology (no decreased water flow)
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Proven and trusted by major insurance carriers
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Fits any size pipe
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Fully customizable to your home’s needs