Leak Detection The damaged pipe's location isn't always obvious, so sometimes a plumber will need to drill holes or run a camera into a pipe to find the leak's location. Detection can cost anywhere from $150 to $600 depending on the required methods.

First, check for hidden leaks using your water meter. Turn off all the water in your home and record the number on your water meter. Wait at least 20 minutes, return to check your meter again. If the meter reading has changed, that means you have a leak.