Should I close the main water valve before

What closing the valve does


Turning off the main water valve stops the flow of water into your home. This can reduce the risk of undetected leaks during a long absence, especially in freezing or aging plumbing systems. However, it can also cause issues for devices that rely on a continuous water supply, such as ice makers or humidifiers, and may require time to repressurize when you return.

When it’s advisable

Closing the main valve is commonly recommended for homes in regions with cold winters, older plumbing, or a high risk of leaks while you’re away for weeks. If you’re traveling during winter and your home risks freezing, shutting off the valve and draining pipes can prevent burst lines. For longer trips in milder climates or for well-maintained systems, some homeowners opt to leave the valve on and instead use secondary precautions.