How to Shut Off Your Main Water Valve

A sudden pipe burst, overflowing toilet, or major leak can turn into serious property damage within minutes. Knowing how to shut off your home’s main water valve quickly is one of the most effective steps you can take—before waiting for a plumber or responding to additional damage.

Before you start: If there’s electrical risk (for example, water near outlets, appliances, or an active electrical panel), prioritize safety. Avoid contact with standing water and switch off power to affected areas if needed. If the leak is severe or you feel unsure, call emergency services or a licensed professional right away.