What is a common sign of a plumbing leak?

A common sign of a plumbing leak is water stains on ceilings or walls because these stains indicate that water has been exiting the plumbing system and has penetrated building materials. Over time, such leaks can lead to discoloration and visible blotches, which are often brown, yellow, or dark patches. These stains can occur in various locations, such as below sinks, around bathtubs, or on ceilings of lower floors if the leak is above.

Identifying water stains is crucial for early intervention, as catching a leak early can help prevent more significant damage to the property, such as mold growth, structural damage, or increased water bills. Addressing plumbing issues promptly is essential to maintaining a safe and healthy environment.