How to Tell If a Tree Is Dangerous (Before It Falls)
Not all tree hazards are obvious until it’s too late.
A healthy-looking tree can sometimes hide serious problems beneath the bark or underground. When decay, disease, or root instability set in, a tree can become unsafe, especially during high winds or storms.
At Harvey Tree Care, we regularly inspect and remove hazardous trees across Harvey, Yarloop, Benger, Brunswick, Waroona, and Burekup. Here’s how to identify warning signs early and protect your home and family.
1. Leaning or Tilting Trees
A tree that suddenly starts to lean is one of the clearest indicators of instability. If the lean develops quickly after rain or storms, it often means the roots are failing. Even a small lean can signal trouble, especially if the soil around the base is cracked or lifting.
What to do:
Contact an experienced arborist to assess the situation immediately. They can determine whether the tree can be stabilised or if tree removal is necessary to prevent a fall.

2. Cracks in the Trunk or Major Limbs
Visible cracks or splits in the trunk reduce the tree’s structural strength. Large branches that split away from the main stem can fall without warning, particularly in windy conditions.
What to do:
Avoid standing or parking near trees with visible cracks. Have an arborist inspect the tree and provide professional advice on whether pruning, cabling, or removal is the safest option.
3. Signs of Decay or Rot
Fungus, mushrooms, or hollow sections in the trunk are red flags for internal decay. Even if the outer bark looks healthy, rot inside the tree can make it weak and unpredictable.
What to do:
If you notice fungal growth, soft wood, or holes in the trunk, book a tree removal service before the decay spreads. Decayed trees rarely recover and pose a major safety hazard.
4. Dead or Falling Branches
Deadwood is heavy and brittle. Branches that break easily, drop without wind, or have no leaves are at high risk of falling. This is one of the most common warning signs we see in older trees around Harvey and the surrounding areas.
What to do:
Professional tree pruning can remove dead branches safely and reduce future risk. Avoid standing or working under trees that shed branches regularly.
5. Root Damage or Soil Movement
Roots anchor the tree and absorb water. When they’re damaged, by construction, soil erosion, or storms – the entire tree can become unstable. Watch for signs such as:
- Raised or cracked soil around the base
- Exposed roots that look broken or decayed
- A tree that moves slightly when pushed
What to do:
Our arborists use equipment to inspect roots and, if needed, perform safe tree removals before they fail completely.
6. Pests and Disease
Termites, borers, and fungal infections weaken wood fibres and cause slow structural failure. Look for sawdust, small exit holes, discoloured bark, or unusual leaf drop. Once pests get inside the trunk, the damage often can’t be reversed.
What to do:
Early detection is key. Our team can inspect and advise whether treatment is possible or if removal is the safer choice.
7. Trees Too Close to Structures
Even a healthy tree can be dangerous if planted too close to your home, shed, or powerlines. In WA’s strong winds, overhanging limbs or large canopies can easily cause property damage.
What to do:
Consider professional pruning to reduce canopy weight or tree removal in WA where safety is at risk. Always use trusted arborists to avoid damaging nearby structures or underground services.
How Trusted Arborists Can Help
Arborists don’t just remove trees; they assess their health, structure, and safety risks. At Harvey Tree Care, our team can:
- Identify signs of internal decay or root instability
- Provide written reports for insurance or council purposes
- Recommend whether to prune, brace, or remove
- Carry out safe and efficient removals when required
We use modern equipment to manage even large or hard-to-access trees while keeping your property safe and tidy.
Frequently Asked Questions
Can I tell if a tree is dangerous just by looking at it?
Some signs, like leaning or cracking, are visible, but many problems start inside the trunk or roots. It’s best to have a professional inspection if you’re unsure.
What should I do if a tree falls on my property?
Stay clear of the area, especially if powerlines are involved, and contact emergency services. Then call Harvey Tree Care for safe removal and cleanup.
Should I remove a tree just because it’s old?
Not necessarily. Many old trees are stable and healthy. Regular inspections help confirm whether they pose a risk.
Trusted Tree Removal and Pruning in WA
With over 25 years of experience, Harvey Tree Care provides reliable, insured, and professional services across Harvey, Yarloop, Benger, Brunswick, Waroona, Burekup and surrounds. We combine knowledge of local conditions with modern equipment to keep your property safe year-round.
If you suspect a tree on your property might be unsafe, contact Harvey Tree Care today for an inspection and free quote.