1. When you see the tree leaning. If you see a tree leaning more than 15 degrees it is a good idea to call a tree professional. Some trees have a natural lean to their growth pattern but others lean due to storm damage or poor soil condition. Anything over a 15-degree lean, especially if it happened recently or has gotten worse, should be taken care of immediately.
2. When a tree has fallen. If a tree has come crashing down or snapped in half due to high winds or other disaster, it needs to be cleaned up as soon as possible to avoid any other damage to nearby property or people. Downed trees are an immediate emergency.
3. When you notice dead branches. Large, dead branches are a sign of trouble ahead when it comes to your trees. If you spot a branch that is dead or dying, get it taken care of immediately in order to prevent it from falling or being blown off and causing damage to people or property.
4. If there is a change in the roots or trunk. A strong, healthy tree can weather many storms, but even a healthy-looking tree might be hollow or dying inside if you aren’t looking close enough. Signs of rot or fungus near the roots or recently exposed roots are indicative of a problem.