In most circumstances, tree roots infiltrating buried pipes are a symptom of a failed or worn out system. Pipes with failed joints, cracks, or other openings leak nutrient-rich water, inviting tree roots to enter. When a pipe is properly sealed and does not leak, a tree root has no way to enter the interior of the system. Generally speaking, tree removals for this reason will not be authorized, however, property owners experiencing these issues are encouraged to contact the Urban Forester for an assessment before moving forward. We may be able to help you navigate options for mitigation instead of complete line replacement.