A fallen tree can cause an enormous amount of damage to a home, often in ways that go far beyond what’s immediately visible.

The roof is usually the most common and most obvious victim. In many cases, the impact of a large tree can destroy shingles, decking, and underlayment to the point where the roof needs to be replaced entirely. But the damage rarely stops there. When a tree crashes onto a roof, it can also compromise the underlying framing that supports the structure, as well as electrical wiring, conduits, insulation, and even the drywall ceilings inside the home.

If the tree is close enough to the property, the root system can also wreak havoc. As roots are torn up during the fall, they can shift soil and crack or destabilize a home’s foundation. Windows, siding, gutters, and exterior walls are all at risk too, depending on the angle and force of the fall.

In short, almost every part of a home—from the roof to the foundation—can be vulnerable to the destructive power of a fallen tree.

If you’re concerned about a tree near your home potentially falling on it, there are several warning signs you can watch for that may indicate a risk. These include things like visible leaning, large dead branches, cracks in the trunk, or signs of root damage. For more detailed guidance, see the section above on “How Do You Keep a Tree From Falling On Your House.”

If, after reviewing these signs, you’re still uncertain about the condition of your trees or the level of risk they pose, it’s always best to seek professional help. An experienced arborist can evaluate the health and stability of your trees, identify hazards you may not notice on your own, and recommend the safest course of action. Getting a professional opinion gives you peace of mind and helps protect both your home and your family from the potentially devastating damage a fallen tree can cause.

Trees usually fall on houses for a few common reasons. One of the most frequent causes is a weak or shallow root system. If a tree’s roots are not deep enough or strong enough to anchor it securely, the entire tree can topple over, often pulling the roots out of the ground as it falls.

In other cases, the trunk itself may be the weak point. Damage from disease, pests, or decay can compromise the strength of the trunk, making it unable to withstand outside forces. When this happens, the tree may snap at the trunk rather than uprooting.

Regardless of whether the weakness begins in the roots or the trunk, the actual trigger that brings a tree down is most often wind. High winds, storms, or even a strong gust can topple a tree that’s already structurally compromised, sending it crashing onto whatever is in its path—including homes, vehicles, or power lines.