TL;DR:Ā Wondering how to find a water leak underground? Hidden leaks can cause serious water damage, increase utility costs, and even threaten your home’s foundation. This guide explains how to identify the signs of an underground water leak, perform simple DIY tests, and know when it’s time to call a professional plumber.
- Learn the most common indoor and outdoor signs of an underground water leak
- Discover how to check your water meter to confirm hidden leaks and potential water main leaks
- Find out how high water bills, wet spots, and low water pressure can indicate trouble
- Follow two simple DIY tests for detecting water leaks underground
- Understand when professional leak detection is needed to prevent costly water damage





