There are several factors to consider when calculating the typical life span of a sewer line. What material your pipes are made of, age, and proximity to trees, are a handful of variables to consider. Sewer lines older than 40 years old, will more most likely need replacing. If you are concerned about your pipes, we recommend regular inspections to ensure the integrity of your sewer pipelines. Inspections are a great way to avoid and prevent costly sewer line repairs