Summary: Summary: When a healthy tree falls in a storm, each property owner generally handles damage on their own side through their own insurance: the tree's owner is usually not liable for an act of nature. When the tree was dead, diseased, or visibly hazardous and the owner knew or should have known, the owner can be liable for negligence. Document concerns in writing before anything falls: a certified letter to the neighbor creates the notice that negligence claims require.
In most states, a healthy tree that falls in a storm is an act of nature, and liability follows the damage, not the trunk. If your neighbor's healthy oak drops a limb on your roof during a windstorm, your homeowners policy covers your roof and their policy covers their yard: you each handle your own side. The tree's owner is generally not liable simply because the tree stood on their land.
This surprises people, but the logic is consistent: no one did anything wrong, so no one owes anyone. Your insurer may try subrogation against the neighbor, but for healthy trees in storms those efforts almost always fail. File with your own carrier, pay your deductible, and move on.
The rule flips when the tree was dead, diseased, or visibly hazardous before it fell. Property owners have a duty to address known hazards: a dead tree leaning over the property line is a foreseeable accident, and courts routinely find the owner negligent for damage it causes. The key legal ingredient is notice: the owner knew or reasonably should have known the tree was dangerous.
This is why documentation matters enormously. If you are worried about a neighbor's tree, send a certified letter describing the hazard, keep a copy, and consider an arborist's written assessment ($300 to $860). Photos of dead limbs, fungal growth at the base, or severe lean, dated and saved, are the evidence that turns a post-fall argument into a negligence claim.
You generally have the right to trim branches and roots that cross onto your property, up to the property line, at your own expense: but you may not trespass to do it, and you may not kill or destabilize the tree in the process. Bad pruning that kills a neighbor's tree can make you liable for its value, which for mature specimens can reach five figures.
The practical move is a conversation before the saw: tell the neighbor the limb concerns you, offer to split the cost of professional trimming, and get any agreement in writing. Many neighbors will share costs for a shared-line tree once asked directly. An arborist does the work; DIY pruning of large limbs over a fence is how both trees and friendships get damaged.
Most tree disputes resolve in one of three ways: a conversation and a split bill, a mediator or small-claims filing over a few thousand dollars, or insurance companies sorting it out after a fall. Lawsuits over trees are expensive relative to the stakes, which is why documentation and early communication win: the party with the certified letter and the arborist report almost always gets the better outcome.
If a tree has already fallen, document everything before cleanup: photos of the tree, the damage, the stump, and any visible rot or disease in the wood. Get the arborist out quickly, because the evidence literally gets hauled away. File with your insurer promptly, and let the adjuster know about any prior notice you gave the neighbor: it affects subrogation.
Walk your property lines once a year and look at every large tree with fresh eyes: dead branches, lean that is getting worse, mushrooms or fungal brackets at the base, cracks in the trunk, and soil heaving on one side. Any of these merit an arborist visit, which is free or cheap for an assessment and a few hundred for a written report.
For your own trees near the line, proactive trimming every 3 to 5 years costs $200 to $760 and prevents most disputes before they start. Removing a hazardous tree on your side before it falls is $700 to $2,000; dealing with it after it lands on the neighbor's garage is that plus lawyers. The cheapest tree dispute is the one that never happens.
Data current as of October 2026. Sources: Angi and national arborist pricing data. Estimates only, not a quote. Always get multiple written quotes from insured local tree companies.