Smart Water Valves & Leak Shut-Off
Whole-home water shut-off valves, leak-detection valves, and smart irrigation valves that protect your home and garden.
About water valves
What is a smart water valve?
A smart water valve opens and closes the flow of water on command, either remotely from an app or automatically based on a leak alert. The category covers:
- Whole-home shut-off valves: installed at the main water line, close every tap in the house in seconds (Phyn Plus, Moen Flo, Aqara T1 + ball-valve actuator).
- Appliance shut-offs: small inline valves for dishwasher, washing machine, or under-sink lines.
- Irrigation valves: battery-powered, screw onto a hose bib or drip-line manifold (Aqara T1, Eve Aqua, Orbit B-hyve).
Pair any of them with leak sensors under sinks, behind the dishwasher, and around the water heater, and you have a closed-loop flood-prevention system that costs a fraction of a single insurance claim.
Which protocols do smart valves use?
Water valves run on battery, so they prefer low-power radios: Zigbee (Aqara, SONOFF), Z-Wave (FortrezZ, EcoNet), and Thread/Matter (Eve Aqua). Wi-Fi is common for premium inline valves with built-in flow metering. Those are mains-powered, so battery isn't an issue. The growth area is Matter plus Thread for valve actuators, which makes cross-ecosystem leak-response automations finally practical.
Shop water valves on Amazon
Browse current bestsellers and deals matching “smart water shut off valve”.
Common use cases
- Automatically shut off the main water supply when a leak sensor triggers
- Schedule garden irrigation by zone, skipping when rain is forecast
- Close the dishwasher feed when the kitchen leak sensor detects moisture
- Send a phone alert and shut off water when no one is home and flow continues for 5+ minutes
- Pre-warm the underfloor heating loop only when occupancy is detected
Related categories
Frequently asked questions
What's the difference between a leak sensor and a leak shut-off valve?
A **leak sensor** detects water and sends an alert. A **leak shut-off valve** physically closes your incoming water supply when triggered. The pair is what actually prevents flood damage. A sensor without an automated shut-off only helps if you happen to be home and able to act.
Do I need a plumber to install a smart shut-off valve?
Two types exist. **Motorized actuators** (Aqara, Sonoff, EcoNet) clamp onto an existing ball valve and turn it. Installable yourself in minutes. **Inline shut-off valves** (Phyn Plus, Moen Flo, Flume) replace a section of pipe and require a plumber. Actuators are cheaper and renter-friendly; inline valves add flow monitoring and pressure-anomaly detection.
Can smart water valves work without internet?
Zigbee, Z-Wave, and Matter actuators (Aqara T1, Sonoff SWV) keep working locally if paired with a Home Assistant or Matter controller. Wi-Fi-only valves (some Phyn, Flume) lose remote control when the internet drops, though local automation rules in their hub may still fire.
Are smart irrigation valves the same as smart sprinkler controllers?
Not quite. A **smart sprinkler controller** (Rachio, RainMachine, OpenSprinkler) drives multiple zones via existing 24V solenoid valves. **Smart irrigation valves** are individual battery-powered valves that screw onto a hose bib or drip line. Useful for drip systems and small gardens that don't have a wired controller.
Looking for a specific valve?
Search all 0 water valves