Is Your Tree Dangerous? Warning Signs You Should Never Ignore
A dangerous tree does not always look dead. Healthy-looking foliage can hide weak branch unions, internal decay or damaged roots. For homeowners in Chermside, Brisbane’s thunderstorms, strong winds and periods of saturated soil make recognising these warning signs especially important.
You cannot confirm a tree’s safety from appearance alone. However, knowing what to look for helps you recognise when to keep people away and arrange a professional assessment.
Key Warning Signs of a Potentially Dangerous Tree
A New Lean or Movement Around the Roots
Some trees naturally grow at an angle. A lean that appears suddenly or becomes more pronounced is more concerning, particularly after heavy rain or strong winds. Fresh cracks in the soil, lifting ground or exposed roots around the tree’s base can indicate movement of the root plate.
If the tree appears to be moving or uprooting, keep clear and seek urgent assistance. Do not approach the trunk to inspect it more closely.
Cracks, Splits and Weak Branch Unions
Deep cracks in the trunk or major limbs can indicate structural weakness. Two large stems joined in a tight V shape may have bark trapped between them, creating a weaker connection. Fresh splitting, separation or movement at that junction warrants prompt assessment.
Do not climb the tree or attempt to secure a splitting branch with rope. These tasks require specialist equipment and an understanding of how the tree may fail.
Dead, Broken or Hanging Branches
Large dead branches and partially detached limbs can fall without much warning. Look from a safe distance for branches with missing bark, brittle tips or no foliage when comparable branches are leafy. Leaf loss alone does not prove a branch is dead, because some species shed leaves seasonally.

Hanging branches above driveways, footpaths, roofs or outdoor seating areas deserve particular attention because people and property are directly beneath them.
Decay, Cavities and Fungal Growth
Hollows, soft or crumbling wood, and fungal fruiting bodies on the trunk or near the base may indicate decay. Their significance depends on the tree species, the organism involved and how much sound wood remains.
A hollow tree is not automatically unsafe, but the size of an opening does not reliably reveal the extent of internal decay. An arborist may recommend further investigation rather than relying on a visual inspection alone.
Root Damage and Canopy Decline
Trenching, driveway construction, excavation and soil compaction can damage roots that support and nourish a tree. The effects may appear gradually as thinning foliage, smaller leaves or dying branch tips. Tell your arborist about nearby building or landscaping work, even if it happened some time ago.
What to Do When You Notice a Warning Sign
- Restrict access: Keep people and pets away from the tree and the area where branches or the trunk could fall.
- Avoid DIY work: Do not climb, cut damaged limbs, disturb roots or stand beneath hanging branches.
- Record observations safely: Take photographs from a distance and note when changes appeared, including any recent storms or excavation.
- Arrange an arborist assessment: Explain whether the tree threatens a house, neighbouring property, public path or powerlines so the urgency can be assessed.
When Is It an Emergency?
Active splitting, visible uprooting or a suspended large limb above an occupied area calls for urgent action. Move to a safe location rather than trying to protect vehicles or belongings.
If there is an immediate threat to life, call 000. For storm-related assistance in Queensland, contact the SES on 132 500. Treat fallen powerlines—and trees touching them—as live. Stay at least eight metres away, keep others clear and contact Energex’s emergency line on 13 19 62.
Tree Assessments and Council Requirements in Chermside
For a detailed tree-risk assessment, look for an appropriately insured consulting arborist with an AQF Level 5 qualification in arboriculture. An assessment considers the likelihood of failure, what could be struck and the potential consequences. Recommendations may include monitoring, targeted pruning, further testing or removal.

Before pruning or removing a tree in Chermside, check Brisbane City Council’s current requirements. Vegetation may be protected under the Natural Assets Local Law or other planning controls, even on private property. Do not assume that a perceived hazard automatically removes approval requirements; ask Council about the applicable process and any urgent-work provisions. Report concerns about street or park trees to Council rather than arranging work yourself.
Regular Checks Help Reduce Risk
Inspect your trees from ground level after significant storms and https://treeremovalchermside.com.au/about/ whenever you notice a change. Keep heavy vehicles, excavation and stored materials away from root zones, and avoid topping trees, which can create decay and weak regrowth.
No assessment can guarantee that a tree will never fail. Prompt attention to warning signs and proportionate professional advice can help Chermside property owners reduce risk while retaining valuable shade and healthy trees wherever practical.
Chermside Tree Removal
Unit 3/744 Gympie Rd, Chermside QLD 4032
(07) 3132 0030