Do Termites Affect the Value of a House?
What a termite history means for a Melbourne property's value, sale and building inspection, and how to protect your investment.
Written by Muzi Tsolakis, Founder and Competency Assessor, Pest Management Victoria. Last reviewed 7 July 2026.
For most Australian families the home is the largest asset they will ever own, so it is worth understanding how termites can affect its value. Subterranean termites, known locally as white ants, feed on the structural timber that holds a house together, and the Victorian Department of Health attributes more than 80 per cent of termite damage to buildings in Victoria to Coptotermes species. When that damage is present or unresolved, it shows up at exactly the moment a property changes hands.
How termites reduce a property's value
Termites eat cellulose, the fibre in timber, and they work from the inside of a stud, bearer or floor joist outward, leaving a painted shell over a hollow. By the time the damage is visible it has usually reached framing, flooring and architraves, and the repair of structural timber is carried out by a licensed builder. Two things then weigh on value: the direct cost of that repair, which falls entirely on the owner, and the caution a buyer feels about a home with a termite history. Both are real, and both are reduced when the problem has been documented and put right.
The building and pest inspection is where it surfaces
A timber-pest inspection is a routine step in most Victorian purchases, and it is the moment a termite issue becomes part of the negotiation. The inspector examines the roof void, subfloor, internal timbers and the external perimeter, and any active termites or evidence of past damage goes into the report the buyer reads before settlement. For a seller, the sensible move is to know that position first, because a problem you have already found and fixed reads very differently to one a buyer's inspector discovers for them.
Our building and pest inspection gives buyers and sellers the same clarity, using moisture meters and radar-based detection to find activity behind plaster and under floors. A clear report, or a documented repair, is what keeps a sale on track.
The insurance gap owners often miss
Standard home and contents policies almost universally exclude termite damage, treating it as a preventable maintenance problem. There is no insurer to call once a colony has eaten into the framing, so the repair bill sits with the owner in full. That exclusion is a large part of why termite damage weighs so heavily on value: a buyer understands they will carry any future cost themselves, which makes evidence of proper protection genuinely valuable at sale.
What protects, and even preserves, your value
A home with a termite management system installed to AS 3660 and a record of regular inspections gives a buyer confidence that the risk is being managed. CSIRO's guidance on managing termites is built around exactly this combination of a barrier and ongoing inspection, and a current management plan is an asset you can show at sale.
If you are preparing to sell, an inspection before you list lets you deal with any issue on your own terms. If you are buying, always commission your own independent timber-pest inspection before you commit. Our team can arrange termite treatment, a management system and a schedule of checks. Call us on 03 9449 4244 or request a free quote.
Termites and house value FAQs
Do termites really lower the value of a house?
Active termites or a history of untreated damage can reduce what a buyer is willing to pay, because the timber framing that gives a home its strength is exactly what termites eat. The effect depends on how far the damage has gone and whether it has been properly repaired and protected since. A home with documented treatment and a current management plan carries far less of a discount than one where the problem is unresolved.
Will a building and pest inspection find termite damage?
A timber-pest inspection is designed to find exactly this, and it is a routine part of most Victorian property purchases. The inspector checks the roof void, subfloor, interior timbers and the external perimeter, and uses moisture meters and radar detection to find activity behind plaster. Any active termites or evidence of past damage will be recorded in the report, which is why sellers benefit from knowing the position before a buyer's inspector does.
Can a house with past termite damage still sell well?
Yes. Buyers are generally reassured by evidence that a problem was found, properly repaired by a licensed builder, and followed by a termite management system installed to AS 3660 with ongoing inspections. A clear paper trail turns an unknown risk into a managed one, and that is what protects the sale price.
Should I disclose termite damage when selling?
Being upfront is the sensible approach, and a buyer's own inspection is very likely to find any significant damage regardless. Providing your treatment records and inspection history alongside the sale gives buyers confidence and keeps negotiations straightforward. If you are unsure of your obligations, seek advice from your conveyancer or solicitor.
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Sources and further reading
- Victorian Department of Health — Pest control: termites
- Standards Australia — Australia's termite management standard (AS 3660) revised
- CSIRO — Managing Termites (research guide)
- Museums Victoria Collections — Coptotermes acinaciformis (Subterranean Termite)
- Australian Environmental Pest Managers Association (AEPMA)
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