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Tree safety

Dangerous Tree Warning Signs When to Get Help

Understand tree warning signs, choose emergency or professional help, and prepare for an arborist assessment using official safety sources.

The Wombat Team
Updated 15 October 2026

General information for Australian homeowners - not professional, legal or safety advice. Requirements vary by state and territory. How these guides are written

Person examining a tree trunk with a torch and clipboard
Quick Answer 6 min read

Know who to contact

Keep clear of damaged trees and electrical hazards. Use emergency services for immediate danger, and an arborist for tree risk assessment.

Immediate danger

Call 000 for a life-threatening emergency.

Electrical hazards

Keep clear and contact the electricity network.

Tree assessment

Describe your concern to an experienced arborist.

Choose the right help

  • Life-threatening emergency: call Triple Zero (000). Do not wait for a marketplace quote.
  • Fallen or damaged powerlines: treat them as live, keep well clear and call 000 and your electricity distributor's emergency line. Do not touch a tree, branch or object in contact with wires.
  • Storm assistance: NSW SES and VICSES direct storm emergency calls to 132 500. Check your state's SES advice. VICSES examples include a fallen tree damaging a home or blocking access; its service does not replace routine work on standing trees.
  • A standing tree causing concern: contact an arborist with tree risk assessment experience. Describe what has changed so they can advise on the next step.

See NSW SES storm advice, when to call VICSES and Queensland Electrical Safety Office advice. Follow emergency-service and network instructions for the actual incident.

Observations to raise with an arborist

The International Society of Arboriculture lists possible defects in its Recognizing Tree Risk brochure (PDF). Mention concerns already visible from a safe location; do not approach a damaged tree to complete an inspection.

What you noticedWhat to describe
Dead, broken or hanging branchesTheir location and what is beneath them.
Cracks or splitsWhere they are visible on the trunk or branch attachments.
Cavities or fungal growthWhat you can already see, without probing or touching it.
Soil movement or a leaning treeAny recent change or ground disturbance you have noticed.
Decline after site changesRecent construction, excavation, pruning or changes in foliage.

These observations do not establish the tree's risk level, and their absence does not certify it as safe. An arborist needs to assess the tree and its surroundings.

Prepare for an arborist assessment

When contacting an arborist, explain the concern without going closer to collect evidence. Useful information includes:

  • The tree's location and whether it is on private, neighbouring or public land.
  • What changed, when you noticed it and any recent storm or site work.
  • Nearby buildings, paths, occupied areas or electrical infrastructure.
  • Existing photos, if you can share them without entering the affected area.

Ask what the assessment covers, whether a written report is included and how follow-up will be arranged. ISA describes several risk-management options, including care, pruning, support or removal. Ask the arborist to explain the recommendation for the actual tree.

Stay clear after storm damage

Follow current warnings and emergency-service directions. NSW SES advises sheltering away from trees and powerlines and not returning while an emergency remains active. Fallen branches can conceal electrical hazards.

Do not climb, tap or mark a damaged tree, walk beneath hanging branches, or attempt cutting or stabilisation. Share existing observations from a safe location and seek professional help. Energy Safe Victoria says only authorised powerline pruning contractors should work on trees near powerlines; contact the electricity distributor for advice.

Confirm scope, permissions and insurance

Once immediate safety needs are addressed, request a written scope for assessment or tree work. Ask about access, equipment, waste removal, any separate report and the proposed schedule. Obtain prices for the actual work.

Confirm tree ownership and ask the relevant council which approvals, urgent-work exemptions and records apply. As a local example, Brisbane's protected-vegetation guidance sets conditions and exclusions for exemptions and identifies reports that may be needed. It does not establish permission to remove a tree elsewhere.

Ask your insurer about your policy and any claim or documentation requirements. Do not put yourself at risk to preserve or photograph damage. For more planning questions, see our council approval guide and arborist selection guide.

Sources and further reading

Guidance checked on 15 October 2026. State and council examples retain their local scope. This guide helps you find appropriate help; it cannot assess an individual tree.

FAQ

Frequently Asked Questions

Questions about warning signs, assessment and arranging tree work.

1

How much does emergency tree removal cost?

Request a price for the actual incident and scope once immediate safety needs are addressed. Clarify attendance, equipment, access, waste removal and any separate assessment report. Do not delay emergency help while comparing quotes.
2

When should I contact an arborist about a tree?

Raise visible defects, recent changes or concerns with an arborist experienced in tree risk assessment. Keep clear of the affected area. For a life-threatening emergency, call 000; use the electricity network and emergency-service routes above for electrical or storm hazards.
3

How long does a tree risk assessment take?

Agree the assessment scope, appointment and report delivery directly with the arborist. Ask what can be assessed, any access limits, whether further investigation may be needed and how recommendations will be recorded.
4

Can I remove a dangerous tree without council approval?

Do not assume a general emergency exemption grants permission. After addressing immediate safety needs, ask the relevant council what applies to the tree, ownership and proposed work, including any urgent-work provisions and required records. Rules differ by location.
5

Does fungal growth prove a tree has root rot?

Fungal growth, cavities or changes in foliage are concerns to discuss with an arborist. They do not let a homeowner identify a particular disease or decide the tree must be removed. Avoid probing, excavating or touching damaged areas to investigate.
6

Can pruning reduce tree risk?

An arborist may recommend pruning, care, support, removal or another response after assessment. Ask them to explain the options and provide a written scope and price. Work near powerlines needs the electricity distributor's advice and appropriately authorised contractors.
7

Will insurance cover tree damage or removal?

Ask your insurer about the specific policy and incident, including damage, removal, liability and documentation. Contacting an insurer does not replace emergency assistance. Do not enter an unsafe area to gather evidence for a claim.
8

What causes trees to fail?

Tree condition, site changes and weather can all matter. An arborist considers the tree and what could be affected around it. A general failure percentage or a checklist score cannot determine the risk at your property.
9

Does a crack in the trunk mean a tree needs removal?

A visible crack is a reason to seek professional advice, not a universal removal rule. Keep clear and describe what you have already noticed. Do not approach to measure, tap, probe or mark the trunk; ask an arborist to assess the situation.