How to Tell If a Water Service Line Is Leaking
Practical, plain-language guidance for homeowners investigating possible water-line leaks.
Start with the meter
Turn off intentional water use and observe whether the meter continues to indicate consumption. This is a clue, not a diagnosis.
Look for outdoor evidence
Persistent wet soil, unusual soft spots, erosion, or moisture that does not match weather or irrigation can support the suspicion.
Compare the timing
Note when the problem started and whether water use increased without a matching change in household activity.
Consider pressure changes
A change in pressure can have many causes, but unexplained changes are worth documenting when combined with other leak clues.
Do not assume the leak location
Water can travel through soil. The wettest spot is not necessarily the point where the line is damaged.
Need help with a suspected leak?
If the cause remains unclear or water loss is continuing, professional investigation may be appropriate. This website provides 24/7 call assistance for connecting with independent local service professionals.