A slab leak occurs when a pipe under a house develops a fault that allows water to leak into the surrounding ground. This can cause unexplained increases in water bills or damp spots in basements. Slab leaks form for reasons such as chemical reactions with pipes, foundation shifting, or regular wear and tear over time. Specialists like Ameriserve Repiping use specific equipment and expertise to locate slab leaks since they can be difficult to find, and then fix the issue by isolating and rerouting the home's piping.