Fall is a useful time to look at the trees around a home before winter wind, heavy rain, snow or ice adds stress. Thinning foliage can make branch structure easier to see, while recent storms may have exposed cracks, hanging limbs or movement around the roots.
A homeowner’s inspection should be simple and safe: observe from the ground, record changes and know when to move people away or call a professional. It is not an invitation to climb, cut large limbs or diagnose internal decay. Tree work can involve falling objects, unstable wood, chainsaws and energized power lines. OSHA identifies falls, struck-by hazards, lacerations and contact with electricity among the dangers of tree-care operations.
The purpose of this checklist is therefore triage. It helps you notice conditions that deserve monitoring, maintenance or urgent professional attention before bad weather arrives.
Key takeaways
• Walk around each important tree from a safe distance and inspect from roots to crown.
• Keep everyone away from hanging branches, recently shifting trees and damaged trees near power lines.
• A new lean with lifted soil, a split trunk, a suspended limb or contact with utilities requires professional help.
• Do not top trees. Improper pruning can weaken structure and contribute to future problems.
• Photograph the same viewpoints and compare them after major storms.
Why fall is a practical inspection window
Trees live with some level of risk throughout the year. Most defects do not mean immediate failure, and healthy trees can adapt to wind and normal movement. Risk changes when a defect makes failure more likely and something valuable—a person, building, vehicle, road or utility line—could be struck.
Fall creates a useful maintenance checkpoint. Homeowners can compare the tree’s current condition with summer photographs, clear sight lines as leaves drop and arrange professional work before winter storms create an emergency queue.
The inspection is especially useful for trees that:
• stand within falling distance of a home, driveway, road or play area;
• have large limbs over a roof or parked vehicles;
• were affected by recent construction, trenching or soil changes;
• have a history of storm damage or major pruning;
• lean toward a frequently occupied area;
• grow near overhead utility lines;
• are large, old or visibly declining.
Prioritize consequence as well as appearance. A small dead branch above an unused corner of a yard may present less risk than a similar branch above a front entrance.
Stop-before-you-start safety gate
Do not begin the walk-around until the weather is calm and there is no active storm, lightning, high wind or falling ice. Keep children and pets indoors or outside the inspection zone.
Stop immediately and contact the appropriate utility or emergency service when:
• a tree or branch is touching, resting on or very close to a power line;
• a power line is down or damaged;
• a tree has shifted suddenly and could fall into an occupied area;
• a large branch is suspended overhead;
• the trunk has split and is actively moving;
• the tree is partly uprooted after a storm.
Assume overhead lines are energized. Do not touch the tree, branch, fence, tool or equipment connected to the area. OSHA guidance for work near overhead lines uses a 10-foot minimum approach principle in relevant work settings, but homeowners should not treat ten feet as permission to trim. Utility-related tree work belongs to the utility or qualified line-clearance professionals.
For the inspection itself, use binoculars or a camera zoom rather than a ladder. Stay out of the fall path of questionable limbs and never stand directly below a defect to photograph it.
The ROOTS inspection route
The UrleBird’s ROOTS route keeps the inspection systematic:
| Step | Inspect | Main question |
|---|---|---|
| R — Root zone | Soil, roots, grade and recent disturbance | Has the tree’s support changed? |
| O — Outer trunk | Base, trunk, bark, cavities and cracks | Is the main structure damaged or decaying? |
| O — Overhead crown | Dead, broken, hanging or unbalanced branches | What could detach or fail? |
| T — Targets | People, buildings, roads, vehicles and utilities | What could be harmed? |
| S — Storm history | New changes, old wounds and prior work | Is the condition worsening? |
Walk a full circle where it is safe and legal to do so. View the tree from several distances. A defect hidden from one angle may be obvious from another.
R — Inspect the root zone and soil
Roots anchor the tree, but many important roots are close to the soil surface and extend beyond the trunk. Begin outside the canopy and work inward without digging.
Look for:
• newly raised or cracked soil on one side of the tree;
• a visible root plate lifting from the ground;
• a new lean after wind or saturated soil;
• severed or exposed roots after trenching or construction;
• soil added deeply around the trunk;
• excavation, paving or heavy vehicle traffic near the root zone;
• standing water, erosion or a changed drainage pattern;
• fungal growth or soft, decayed wood around the base.
A long-standing lean is not automatically unsafe. Penn State Extension explains that trees can develop bows, sweeps and stable leans over time. A newly changed lean, especially with lifted soil or broken roots, is more concerning and warrants professional assessment.
Do not pull, push or probe an unstable tree. Mark the observation point, take a photograph from a safe location and keep people and property away from the potential fall zone until it is evaluated.
O — Examine the outer trunk and base
The trunk transfers loads between roots and crown. Walk around it and look from the base upward.
Record:
• fresh vertical or horizontal cracks;
• a split where two main stems join;
• open cavities or areas of missing wood;
• loose bark accompanied by soft or crumbling wood;
• old wounds that appear to be expanding;
• mushrooms or conks growing from the trunk or root flare;
• sawdust-like material, exit holes or unusual insect activity;
• a change in trunk angle;
• water collecting in a cavity;
• cables, braces or other hardware already installed.
Not every cavity or mushroom means the tree will fail. Internal condition cannot be judged reliably from a photograph alone. The key is change, size, location and what would be struck if the trunk or stem failed.
Pay special attention to codominant stems—two similarly sized upright trunks originating from the same point. A tight V-shaped union, included bark or a visible crack can require professional evaluation, especially when the stems spread over a building or public area.
O — Scan the overhead crown
Move far enough away to see the full canopy. Use binoculars if available. Do not stand beneath a suspect limb.
Look for:
• broken branches lodged in the crown;
• dead limbs with missing bark or no twigs;
• fresh cracks at branch unions;
• branches bent or hanging lower than before;
• one side of the crown losing substantially more foliage;
• large branches rubbing or crossing;
• old pruning stubs with decay;
• limbs resting on a roof, cable or another tree;
• heavy vines that hide branch structure;
• clusters of weak shoots following previous topping.
Penn State Extension notes that broken branches can remain suspended after storms and later fall during calm conditions. Treat any lodged limb as an exclusion-zone issue, not a do-it-yourself pruning job.
Do not top the tree
Tree topping removes large parts of the crown by cutting branches back to stubs or unsuitable lateral branches. It may make a tree look smaller immediately, but Penn State warns that topping can encourage decay and weak regrowth, increasing future failure risk. Correct pruning decisions depend on species, structure, condition and the reason for the work.
T — Identify the targets below and around the tree
Risk is not only a property of the tree. It also depends on what is within reach if something fails.
Map the potential targets:
• bedrooms, living areas and frequently occupied rooms;
• entrances, paths, patios and play areas;
• parked vehicles and driveways;
• neighboring property;
• public sidewalks and roads;
• overhead utility and communication lines;
• sheds, fences, solar panels and other structures.
Then note how often each area is occupied. Moving a picnic table, parking space or play equipment can reduce exposure while professional work is scheduled. This does not repair the tree, but it can lower immediate consequence.
For public street trees, contact the relevant municipal department rather than arranging unauthorized work. For utility conflicts, call the utility.
S — Compare storm and service history
A single inspection is more useful when it is compared with previous conditions. Create a simple record for important trees:
• tree location or ID;
• inspection date;
• photographs from the same three or four viewpoints;
• recent storms or construction;
• visible changes;
• action taken;
• professional report or work record;
• next review date.
Repeat the walk-around after severe wind, ice or saturated-soil events, but only after conditions are safe. Photograph from the same marked locations so changes in lean, canopy balance or root movement are easier to see.
Red, amber and green action table
This triage table is intentionally conservative. It does not assign a professional risk rating.
| Level | Examples | Action |
|---|---|---|
| Red — keep away | Downed line; tree touching utility; fresh root-plate lift; active trunk split; large suspended limb; sudden severe lean | Establish an exclusion zone and contact the utility, emergency service or qualified arborist as appropriate |
| Amber — arrange assessment | New crack; cavity with decay signs; declining crown; recent root damage; codominant stems with defects; branches over high-use targets | Reduce exposure and schedule an ISA Certified Arborist or other qualified professional |
| Green — monitor and maintain | No visible change; normal seasonal leaf drop; minor dead twigs away from targets; established stable form | Record condition, provide species-appropriate care and recheck after major weather |
If you are unsure between red and amber, choose the safer action and keep people out of the area until a professional evaluates it.
What homeowners can safely do
Safe ground-level tasks may include:
• removing loose items from beneath questionable trees;
• relocating vehicles, seating or play equipment;
• photographing and logging visible changes;
• clearing small fallen twigs from the ground after conditions are safe;
• checking that mulch is not piled against the trunk;
• watering appropriately during dry fall conditions based on local guidance;
• scheduling a professional inspection before an expected storm season.
Do not climb, use a chainsaw aloft, cut a branch under tension, work from a ladder or approach power lines. Even a branch that appears manageable can rotate, split or release stored force when cut.
How to choose a qualified arborist
For large trees, significant defects or work above ground, look for an ISA Certified Arborist and verify the credential through the International Society of Arboriculture directory. For complex risk questions, ask whether the arborist holds the Tree Risk Assessment Qualification, commonly called TRAQ.
Before authorizing work, request:
• proof of current liability and workers’ compensation insurance where applicable;
• a written scope identifying the tree and proposed work;
• an explanation of why each action is recommended;
• confirmation that work will follow relevant professional standards;
• a clear plan for utility coordination and site protection;
• the price, cleanup responsibility and disposal terms in writing.
Be cautious of anyone who recommends topping as routine storm prevention, pressures you into immediate non-emergency work or cannot provide insurance details. After a major storm, unqualified operators may target worried homeowners.
A one-page inspection checklist
Before walking outside
☐ Weather is calm; no active storm, high wind, lightning or falling ice.
☐ Children and pets are outside the inspection zone.
☐ Binoculars or camera zoom are available; no ladder is needed.
☐ Known utility conflicts have been reported rather than approached.
Root zone
☐ No new raised soil, cracked ground or root-plate movement.
☐ No recent trenching, paving or heavy compaction is evident.
☐ Drainage and soil level around the trunk have not changed unexpectedly.
Trunk
☐ No fresh split, widening crack or rapidly changing lean.
☐ No major soft cavity, conk or expanding wound is visible.
☐ Main unions appear unchanged.
Crown
☐ No large broken or suspended branches are visible.
☐ No major limb has dropped or bent toward a target.
☐ Crown decline or imbalance has not noticeably increased.
Targets and action
☐ People and movable property are kept away from questionable areas.
☐ Red conditions are isolated and reported immediately.
☐ Amber conditions have a professional assessment date.
☐ Photos, notes and next review date are saved.
Frequently asked questions
Can I tell whether a tree is dangerous from the ground?
You can spot warning signs and decide when to keep away or seek help, but a ground-level homeowner inspection cannot determine internal strength or provide a complete risk assessment.
Is a leaning tree always unsafe?
No. Some trees develop stable leans over many years. A new or increasing lean, especially with lifted soil, root damage or cracking, is more concerning and should be professionally assessed.
Should I trim branches near a power line?
No. Do not approach or cut vegetation near energized lines. Contact the utility and follow its instructions.
Is fall always the best time to prune?
Pruning timing depends on the species, climate, tree condition and objective. Ask a qualified local arborist or extension service for advice rather than assuming one season fits every tree.
What should I do after a winter storm?
Wait until weather and electrical conditions are safe. Keep away from downed lines, hanging limbs and shifted trees. Reinspect from the ground and contact the utility or a qualified arborist for hazardous work.
How often should large trees be inspected?
Perform a homeowner walk-around seasonally and after major storms. The frequency of professional assessment depends on tree condition, site use, recent changes and potential consequences.
