How to Shut Off Your Water Main in an Emergency

When a pipe bursts or a leak springs in your home, knowing how to shut off your main water valve can mean the difference between a quick fix and costly damage. In places like Billings and Laurel—where winter freezes and aging plumbing are common—emergencies can strike without warning. That’s why every homeowner should know exactly where their water main is and how to shut it off.

At Brown Plumbing & Heating, we believe plumbing confidence starts with simple know-how. Here’s how to locate and operate your water shut-off—and why it matters.

Why Shutting Off Your Water Matters

Water moves fast, especially under pressure. If a pipe breaks, even a few minutes of running water can damage floors, walls, furniture, and personal belongings. In Montana, freezing weather often leads to pipe bursts in winter. Other culprits include old fittings, failed water heaters, or DIY mistakes during renovations.

Being able to act quickly—and knowing exactly what to do—can minimize the damage and give you peace of mind while you wait for help to arrive.

Step 1: Locate the Main Shut-Off Valve

In most homes, the main water shut-off is located:

In the basement or crawlspace near the front foundation wall

On the inside wall closest to where the water line enters the house

Near the water heater or laundry area in some cases

For homes in Billings or Laurel without basements, check utility closets, garages, or the area where your water meter is installed. Look for a wheel-type or lever-style valve connected to a pipe coming through the floor or wall.

If you live in a rural area or use a well, your shut-off valve may be near the pressure tank.

Step 2: Turn the Valve Off

There are two common types of valves:

Gate Valve (Round Handle): Turn the handle clockwise until it stops. It usually takes several full turns.

Ball Valve (Lever Handle): Turn the lever 90 degrees so it’s perpendicular to the pipe. This should stop water flow instantly.

It’s a good idea to test your shut-off valve once or twice a year to make sure it’s working properly. If it feels stuck or corroded, contact a plumber to inspect or replace it.

Step 3: Drain Remaining Water

Once the main valve is off, open a faucet at the lowest point in your home (like a basement sink) to help drain the water remaining in your pipes. This reduces pressure and stops most leaking or spraying until repairs can be made.

For frozen pipes, leave the faucet open to allow melting ice to safely drain out once the line thaws.

Bonus Tip: Know Where Your Meter Box Is

In an emergency, especially if the indoor shut-off fails or is inaccessible, you can also shut off the water at the meter. The meter box is typically outside near the curb or sidewalk. You’ll need a meter key or wrench to access it and turn the valve.

If you’re unsure how to do this—or if the valve is stuck—call Brown Plumbing & Heating immediately for emergency help.

Be Proactive, Not Reactive

Don’t wait for a water emergency to learn where your shut-off valve is. Walk through your home now and locate it. Label it clearly for other family members. And if you can’t find it—or if it doesn’t seem to work—give us a call.

Our licensed technicians in Billings and Laurel are happy to inspect your shut-off valve, replace faulty hardware, or walk you through an emergency response plan specific to your home.

Need Help Fast? Call Brown Plumbing & Heating

Whether it’s a burst pipe or a mystery leak, Brown Plumbing & Heating is here to help. Visit https://brownplbg.com or call us for 24/7 emergency plumbing services in Billings and Laurel. We’ll help you protect your home, your plumbing, and your peace of mind.