Homeowner symptom guide · Melbourne
Signs of Termites in Walls: What to Look For in Melbourne Homes
Termite damage in walls is notoriously difficult to detect early because termites consume timber from the inside out, leaving a paper-thin surface shell that conceals the destruction beneath. By the time damage is visible, the infestation is usually well established. This guide covers the most reliable early detection signs in Melbourne homes.
Take the free home risk check →Common Causes
- • Subterranean termites (the most destructive species in Melbourne) build underground colonies and travel through soil or enclosed mud tubes to reach the timber in your home's framing and wall cavities.
- • Drywood termites (less common in Melbourne) establish colonies within the timber itself and don't require soil contact — they are typically introduced through infested furniture or recycled timber.
When to Be Concerned
- Hollow sound when knocking on timber door frames, skirting boards, or architraves
- Paint bubbling or blistering on internal walls without moisture cause
- Pencil-width mud tubes on foundations, along walls, or on structural timbers
- Discarded wings near window sills after a warm evening — termite swarm event
- Fine powdery frass (termite droppings) in small piles near timber
- Visible sagging or softening in timber floors or stairs
What to Do
- 1 Do not disturb suspected termite workings — this can cause the colony to retreat into inaccessible areas, making treatment harder.
- 2 Call a licensed pest inspector for a thorough inspection ($250–$450) that includes thermal imaging if available — the cost is negligible compared to the damage that can occur while you wait.
- 3 Do not attempt to treat termites yourself — baiting and chemical barrier systems require licensed application for effectiveness and safety.
- 4 Review and reduce termite harbourage around the home: remove old timber, garden sleepers touching the house wall, and decaying tree stumps within 3 metres.
Frequently Asked Questions
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How quickly can termites damage a Melbourne home?
An established termite colony can consume significant structural timber within 3–6 months. Damage varies greatly depending on colony size, timber type, and moisture conditions. Early detection and treatment are the only effective mitigation.
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I found termite wings on my window sill — does this mean I have an infestation?
Discarded wings indicate a termite swarm event, where reproductive termites have flown from an established colony to start new ones. This may mean a colony in your home or an adjacent property. A professional inspection is warranted within days, not weeks.
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