How to Shut Off the Water to Your House

Why this matters

A broken supply line can release a surprising amount of water in a short time. Knowing how to stop the flow is one of the simplest ways to limit damage. 

What to do

• Find the main shutoff before there is an emergency and show every adult in the household where it is.
• Learn the smaller fixture shutoffs under sinks, behind toilets, and at appliances so you can isolate minor leaks.
• Keep the shutoff accessible instead of burying it behind storage or landscaping.
• If a valve is corroded, stuck, or difficult to operate, have a plumber service it before you need it.

When to call a professional

Never force a badly corroded valve. A failed valve can turn a small problem into a much larger leak.

As a general rule, professional help is appropriate when there is structural movement, active water intrusion, electrical or gas risk, roof access, specialized diagnostics, a permit issue, a major insurance or tax question, or a repair expensive enough that getting it wrong would materially hurt the property.

Ask Houzable

Ask Houzable: Have a new-home question? Send it to Houzable. We are here after closing, too.

You do not need to be ready to buy or sell. Sometimes you just need a real-estate perspective before spending money on the house.

Frequently asked questions

• Can I handle this myself?

Some homeowner checks are simple, but the right answer depends on the system, access, safety risk, and your experience. Do not DIY work that creates electrical, gas, structural, roofing, or major water-damage risk.

• How often should I check this?

Use manufacturer guidance and the actual condition of your home rather than relying on one universal schedule. A quick annual review is a good starting point for many items.

• Should I keep records?

Yes. Photos, dates, invoices, warranties, permits, and service notes can be useful for maintenance, insurance, and future resale.

Bottom line

It’s great to know where this is, just in case. All homes have a main shut off a the front of their home, usually near the street. This can often require a special key to open, because it houses your water meter. You’ll also normally have a second shut-off valve close to your house, usually in your front flower bed. In some newer homes, there will be a small hatch/door on the wall inside your garage where you’ll find a shut off to your entire home.