A typical pool leak --such as a leak in the pool's plumbing -- costs an average of $350 to repair, depending on the actual work involved. Average pool repairs in general cost between $251 to $878. They can be as much as $3,000 for more complex issues.
The source of the leak and the severity of the damage determines the actual cost of repairs, in addition to what the pool repair professional charges. Some leaks are caused by cracks in the concrete foundation. This can be more labor-intensive and therefore cost more than the average amount. Above-ground swimming pool repairs tend to be the least expensive. Leaks in a pool's plumbing are usually reasonably priced.