The answer to 'lifespan of shut-off valve' is that the typical lifespan of a shut-off valve is 20-50 years, depending on the quality of the valve and the frequency of use. Shut-off valves are critical components in a home's plumbing system, allowing you to turn off the water supply to a specific fixture or the entire home in case of a leak or for maintenance. With proper care and occasional lubrication, a high-quality shut-off valve can last for decades. However, older valves or those that are frequently operated may wear out sooner and need to be replaced to prevent leaks or water damage.
It's important to test your shut-off valves periodically to ensure they are functioning properly. If a valve is stuck or difficult to turn, it may need to be replaced before it fails completely. Calling a licensed plumber to inspect and service your home's shut-off valves is the best way to ensure they are in good working order and will last as long as possible.