10/17/2026
Tree risk assessments look beyond a hollow trunk to the condition of the whole tree.
A hollow or cavity can be unsettling, but its presence alone does not give you a complete removal decision. The remaining wood, the location of the defect, the rest of the tree and what could be struck all matter in a professional risk assessment.
The cut sections in the photo make an internal cavity visible. They are an illustration of a feature to understand, not evidence that every hollow tree will fail or that the same condition exists inside your tree. A photograph cannot establish how much sound wood remains in a standing trunk.
If you notice a cavity, avoid probing it or climbing for a closer look. Record where it is and describe any recent cracking, movement or branch loss from a safe place. Ask what the assessment can establish, whether further investigation is appropriate and how the findings affect the available options. The recommendation should connect the observed condition to your property's actual use.
Tell the assessor if the area below the tree has changed use, such as a new parking spot or seating area. The tree is only part of the risk discussion.
Tree inspections are available from Progressive Tree Service, whose staff includes ISA Certified Arborists.
For tree inspections, the relevant service link is in our first comment.