The main water shut-off valve at your house is a critical component of your plumbing system, allowing you to stop the flow of water to your entire home in case of emergencies, such as a burst pipe or major leak. Knowing where the shut-off valve is located and how to operate it can save you from significant water damage and costly repairs. Typically, the valve is located near the water meter, either inside the house, in a basement, crawlspace, or outside near the foundation. Regularly checking and maintaining this valve ensures that it works properly when you need it most, giving you peace of mind in case of unexpected plumbing issues.
Pipes can often freeze during frigid weather, with the potential to bust when they thaw. Shutting off your water before the freezing temperatures can save you from damage & costly repairs.
Should you have any water damage, such as frozen pipes or a busted water heater, you will want to shut off the water to mitigate additional water damage from flooding your house.
If you're fixing a leak, replacing pipes, or doing any significant plumbing work, shutting off the main water line is necessary to prevent water from flowing during repairs.
It is a good practice to shut off your main water line if you are going to be gone for extended periods of time, especially if there could be inclement weather.
It is generally outside, often close to the street, but will vary from house to house.
There is often also a shut off to the irrigation system. The cover to each valve should be labeled.
A helpful tool is a water shut off key to easily turn the valve on and off. Alternatively, you can use a wrench or other traditional tools