Sweet Gum Tree Roots and Foundation Risk: When to Worry and Root Pruning

A 30-year-old sweet gum that hasn't damaged nearby structures yet is unlikely to start now. However, surface roots can eventually lift patios or press against foundations. As a preventive measure, you can root-prune by trenching 2–3 feet deep, parallel to the structure, about 10 feet from the trunk, cutting any large roots headed toward the house or garage. This is best done before damage occurs. While purists may object, protecting your home takes priority. If you must disturb a concrete patio to access the root zone, weigh the cost against potential future repairs.