It’s time to get serious about water damage

Guardian is the first water damage prevention system designed for homeowners to use without professional installation or special tools.



Automatic Shut-Off

Automatically close your water main when Leak Detectors sense leaks, freezing temperatures, or earthquakes.


Monitor For Disasters

Monitor toilets, basement doors, sump pumps, water heaters, appliances, sinks, drains, and more for leaks and floods.

Remote Notifications and Control

Control your system from anywhere in the world via the Guardian app, available for iOS and Android with no monthly service fees.

Control your water main from anywhere in the world!

Protect your family and home from potential water damage via your smart device and enjoy peace-of-mind protection.

More people suffer from water damage than fire and theft combined, with more than 14,000 water damage claims a day.


Valve Controller

Install me over your indoor water main and I will automatically shut off your water when the Leak Detectors sense leaks or freezing temperatures. I'll also alert you through the Guardian App, which you can use to check up on and control me from anywhere in the world.


Leak Detector

Place me near toilets, washing machines, water heaters, drains, and other areas where leaks may occur. I will keep an eye out for drips, pooling water and freezing temperatures. I'm completely waterproof, I can be placed up to 300 feet away (indoors) from the Valve Controller. I come with a 15-year battery so you can enjoy years of protection.


Smart Phone App

Control your water main, get notifications during leaks, or just check up on your system from anywhere in the world using the FREE Guardian App. You will also receive alerts during storms, earthquakes, and freezing temperatures so you can make sure your home is safe. 

Guardian Leak Prevention System Plus

$399 $379.05
  • Install in minutes and never worry about water damage again. Guardian will automatically close your water main when Leak Detectors sense leaks, freezing temperatures, or earthquakes. Use the iOS & Android app, with no monthly service fees, to monitor and control your system from anywhere in the world.

  • Valve Controller easily installs over existing quarter-turn metal ball valve from ½" - 1" without any tools. For Indoor use only!

  • The Leak Detectors can be placed up to 1000' away (line of sight) from the Valve Controller, and they include a 15-year battery.

  • The Leak Detectors sense water using five different points of detection to provide installation flexibility. Use to monitor toilets, basement doors, sump pumps, water heaters, appliances, sinks, drains, and more for leaks and floods.

  • Expandable system 

What's Included:

  • 1 Valve Controller

  • 3 Leak Detectors

  • 2 Remote Sensor Probes

  • AC adapter with 10’ cord

  • Setup Guide

  • 1 Year Limited Warrant



Setting up Guardian is easy and requires no tools. Our DIY, retrofit system works with existing plumbing and can be protecting your home and belongings in minutes.


From One Homeowner To Another


“This is a world class product and will set the bar for leak alert and damage prevention. From the efficient packaging to the flawless and simple set up, I’m sleeping better knowing the Guardian is installed and operating.”

“Amazing product. Easy installation. Works as described and is worth every dime considering the damage a plumbing failure can cause (bought after experiencing one). I definitely plan to get more sensors and the controller unit back up battery!”


“Super easy to set up. No plumber. Super easy to use. I now sleep better after just t covering from $40k of damage (plus lots of life disruption) caused by a $6 part that failed (braided intake line to dishwasher).”


The Guardian Mission

Guardian is committed to reducing the devastating and costly effects water damage can have on residential and commercial properties around the world. By creating innovative devices and systems that put the power of regulating water flow into the hands of property owners, we empower our clients to truly own their homes and businesses as well as create lasting peace-of-mind security.