The answer to 'average cost of leak repair' is that the typical range for a professional leak repair can vary widely, usually from $150 to $500 or more. The cost of a leak repair depends on several key factors, including the location and severity of the leak, the materials and labor required, and whether it's a simple fix or requires more extensive plumbing work.
For example, a minor leak in an accessible area like under a sink may only cost $150 to $300 to repair. However, a more complex leak in the walls or foundation can easily run $400 to $800 or more, as it may require drywall or concrete repair, as well as the plumbing work. The cost can also depend on the plumber's hourly rate and whether any permits are required.