How Do You Shut off Water in a House Emergency?

Your main shutoff valve controls water to the entire house. It is typically located where the main water line enters the home, often in a garage, utility room, or near the water heater. In many homes, it is outside near an exterior wall or in an in-ground box. Finding this valve before an emergency happens helps you act quickly.

For a leak at a single appliance, use its local shutoff valve. Toilets have a small valve on the wall or floor behind them. Sinks have valves under the basin, often one for hot and one for cold. Washing machine valves are usually behind the unit. Turning these clockwise stops water flow to that fixture only, letting you use water elsewhere.

• Toilet: Look for a flexible supply line connected to a small oval handle.
• Sink: Find two small valves, often with colored handles, under the cabinet.
• Washing Machine: Two valves, typically red and blue, are on the wall behind the machine.
• Dishwasher: The shutoff is usually under the kitchen sink near other valves.
• Water Heater: A dedicated valve is on the cold water pipe entering the unit.
• Outside Spigot: Some have a dedicated shutoff inside the house for winterizing.

Even a small leak can cause hidden damage inside walls or under floors. Local water damage pros have specialized equipment to detect moisture and dry structures properly. They can also help identify the leak's source and recommend necessary repairs. It is wise to know who to contact for plumbing and water damage help before an emergency occurs.

• You cannot locate or operate the main shutoff valve.
• The leak is behind a wall or under a slab foundation.
• There is significant standing water, more than a few gallons.
• The water is contaminated, such as from a sewer backup.
• Electrical outlets or appliances are near the water.
• You suspect mold growth has already begun.