How do I turn off the water in my home if I have a major leak?

  • Updated

The main water shutoff valve controls the flow of water into your home.

Find It.  Locate the water meter lid in your yard, then follow a straight line to your home.  That’s typically where the water line enters the home and where you’ll find the main shutoff valve.

  • In most homes, the water shut-off valve is in the basement, a crawl space, utility closet, or in the garage, under a concrete slab.
  • Can’t find the main valve? Consider calling a licensed plumber to locate or install one.

Test It.  Once you locate the main valve, test it. Turn off the valve and check all the faucets in your home.

  • If no water comes out, you found it! If water is still flowing, try again.
  • Most appliances have separate shutoffs but only the main shutoff valve will turn off all the water in your home.
  • If the valve doesn’t work, you may need to contact a plumber.

Tag It.  Once you find the main water shutoff valve, tag it and make sure other family members know where it is.

  • Use a brightly colored, waterproof ribbon You can also call 502.583.6610 to request a Louisville Water shutoff tag. 
  • Turn the valve a couple of times each year to ensure it operates smoothly when needed.

Check out our Ginny on the Job video series for more information on locating your shutoff valve, finding leaks, and other great tips to help protect your home.