Can’t find a valve inside? No problem—your house might be an overachiever with an exterior shut-off. Check near your foundation or in a meter box (that little metal or plastic lid in your yard).
How To Turn Off Water To Your House: Todays Sunday Skill
Peek under the lid carefully—sometimes critters think it’s their spa. You’ll see a meter and a valve. You might need a special wrench (called a curb key) to turn it. If you don’t have one, a long, flat-head screwdriver can sometimes work, but be gentle.
This is your nuclear option. Only use this if your indoor valve is broken, or if you’re evacuating for a hurricane and need to really lock things down. It’s powerful, so respect it.