Termite nest in the house: what you have found and what comes next
Most termite nests are not in the house at all. The ones that are can be anywhere, and none of them should be touched.
Start with the commonest mistake: expecting to see a nest
Most people picture a nest as a single lump you can point at. For the termites that damage Australian houses, it rarely is. The colony usually lives in the ground, in a tree or stump, or inside timber, and only its workers reach the house.
So a nest "in the house" can mean three different things. You may have found a central nest inside a wall or roof void. You may have found a satellite nest, a damp pocket the colony built for itself. Or you may have found something that only looks like a nest.
What you might actually be looking at
| What you see | What it usually means |
|---|---|
| A mass of chewed, papery material inside a wall or roof void | A nest or satellite nest, built from chewed timber and soil |
| Mud packed into a gap or cavity | A feeding area or a tube that has been widened |
| Hollow timber full of tunnels and soil | Galleries, which are not the same as a nest |
| A dark lump on a branch or fence post outside | An arboreal nest, often a different group again |
Telling these apart is a job for a licensed inspector with the right instruments. You cannot reliably do it by looking, and you should not try to identify the species from a description or a photo.
Why finding the nest is not the goal
People often assume the cure is to locate the nest and remove it. That is rarely how it works. The colony can be metres away, in a tree or under a slab, and breaking open the part you found does nothing to the rest.
Worse, disturbing it makes the colony shut that area and re-enter somewhere you cannot see. How termite nests work explains the difference between central, satellite and arboreal nests.
Do not break it open, spray it or burn it
Do not cut into the nest, knock it down or spray it with a hardware-store product. Each of those pushes the colony to abandon that route and return hidden. It also destroys the evidence the inspector needs and the transfer effect that professional products depend on.
Leave the area as you found it. Take a photo from a distance, note where it is, and keep pets and children away from it.
What to do today
- Stop. Do not touch, spray or remove anything.
- Photograph what you see without disturbing it.
- Book a licensed timber pest inspection and tell the inspector exactly where you found it.
- Move nothing. If there is a leak nearby, say so is worth mentioning, because moisture is what sustains a nest in a wall.
Treatment is applied by a licensed pest management technician using products registered by the APVMA. It is not a weekend job, and it is not worth trying.
What the damage tells you
A nest inside the structure usually means the colony has been established for some time. That does not automatically mean the house is unsafe. Reading soft timber covers where cosmetic damage becomes a structural question, and that call belongs to a qualified person.
Frequently asked questions
Is a termite nest in the house always an emergency?
Not always, but it is never something to leave. A nest in the structure means an active colony, so book a licensed inspection promptly and do not disturb it in the meantime.
Can I remove a termite nest myself?
No. Breaking it open or spraying it can push the colony to re-enter hidden elsewhere in the house, and it destroys the evidence an inspector reads. Treatment is done by a licensed technician.
Where are termite nests usually found?
Most are in the ground, in trees or stumps, or inside timber, not in plain sight. Some species build a nest inside a wall or roof void, which is why a hidden colony is often found by an inspector rather than by the owner.
Sources
What this page explains is based on these official sources. If you check one and it does not match what you read here, send it to us and the article gets corrected.
- Queensland Building and Construction Commission. Protect against termites — termite management systems and inspections
- Standards Australia. Australian Standards (AS 3660 termite management, AS 4349.3 timber pest inspection)