How to Check and Handle a Leaking Pipe at Home

Common reasons for pipe leaks include corrosion of old pipes, loose fittings, water pressure that exceeds the pipe's rating, or freezing that expands the pipe and causes cracks. When you notice a water stain or hear a continuous flow, try to identify the exact location of the leak and whether the pipe is exposed or hidden inside a wall.

First, shut off the main water supply to stop the flow, then examine the leak closely. If it is a loose joint, you can tighten the nut with a wrench or wrap plumber's tape around the threads to seal it. However, any repair that requires soldering or replacing a damaged section should be left to a professional.

If the leak is on a main line that runs through walls or ceilings, if you need to cut or replace a pipe, or if water continues to flow after you have tightened fittings, stop immediately and call a licensed plumber. Working inside structural elements or with specialized pipe materials often needs special tools and expertise.

To prevent future leaks, regularly check water pressure, clean filters and valves, and consider replacing pipes that are over 20 years old or show clear signs of corrosion.