Pre-purchase inspection on a house: what it covers and what it leaves out
The report looks thorough. The question is how much of the house it actually looked at.
The short answer: what you can see, on one day
A pre-purchase inspection on a house reports on the parts of the building the inspector could reach and see safely on the day. For timber pests, that means evidence of termites, borers and fungal decay, plus the conditions that invite them. It does not report on anything hidden, blocked or out of reach.
That is not a flaw in the process. It is how the standard works. Your job is to know where the edges are.
What is normally in scope
- The interior: walls, ceilings, floors, door and window frames, and fittings that can be seen without moving anything.
- The roof void and subfloor, where there is a safe way in.
- The exterior: walls, eaves, decks, steps and fences close to the building.
- The site: drainage, soil levels, stored timber and tree stumps near the house.
Inspectors tap, probe and use instruments where the standard allows. They note activity, damage and conditions that favour pests, then list what they could not check.
What the report leaves out
Expect the exclusions to be spelled out, and read them. Common ones are wall cavities, areas behind stored goods, fixed cabinetry, roof voids with no safe access, subfloors with too little clearance, and anything under a slab.
A report that says "no evidence found" on a house with half of these excluded is a very narrow clean result. Treat it as a statement about the visible part only.
Access is the whole game
Most of the useful work happens before the inspector arrives. Ask the agent to clear the subfloor hatch, unlock the shed and move the stacked boxes. A blocked area is not a clear area, and it cannot be fixed afterwards without a second visit.
If the inspector reports a restricted area, ask what it would take to see it. Sometimes it is a hatch and a torch. Sometimes it is a second visit you should weigh against the risk of buying blind.
When the report finds something
Do not touch it, and do not let anyone "just have a look" with a screwdriver before the report is finished. Disturbing live termites can push them out of sight and destroy the evidence the inspector needs to scope the problem. Ask the inspector three things. Is the activity current or old? Does the damage look structural? What could not be assessed?
What this means for your contract is a question for a conveyancer or solicitor. We will not tell you what you are entitled to. The answer depends on the wording you signed and the deadline in it, so ask early.
A clean report is a snapshot, not a warranty
Termites can arrive the month after settlement. A clean result tells you the state of the house on one day. It is a good reason to start a regular inspection routine after you move in, not a reason to skip one.
Frequently asked questions
Does a pre-purchase inspection cover the whole house?
No. It covers the areas the inspector could reach and see safely on the day. Anything hidden, blocked or without safe access is listed as an exclusion.
Can I rely on the seller's report instead?
It is worth reading, but it was commissioned by someone whose interests differ from yours. Commission your own so you know exactly what was checked and for whom.
What should I do if the inspector finds termite activity?
Leave it undisturbed and ask the inspector to explain what was found and what could not be seen. Disturbing the colony can send it out of sight, and the damage keeps going where nobody is looking.
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.
- Standards Australia. Australian Standards (AS 3660 termite management, AS 4349.3 timber pest inspection)
- Queensland Building and Construction Commission. Protect against termites — termite management systems and inspections