What questions should you ask about termite inspection in Perth?

Picture yourself standing in the sunlit backyard of a charming brick-and-tile home in suburban Perth, chatting with the real estate agent while holding a clipboard. You are about to sign on the dotted line, feeling pretty good about the place, until a nagging thought hits you about what might be chewing away quietly beneath the floorboards. That is usually when people start asking about a termite inspection, assuming any standard building check covers it. It rarely does, and that misunderstanding costs buyers thousands of dollars every year across the Swan Coastal Plain.

When you book a timber pest evaluation in Western Australia, you are not paying for a general builder to kick the skirting boards and check for rising damp. You are paying for a diagnostic assessment governed by strict national standards, specifically Australian Standard AS 4349.3-2010. General building condition reports explicitly exclude timber pests. If your inspector is not licensed individually by the Western Australia Department of Health, or if they do not hold national competency CPPUPM3008, you are essentially paying someone to guess.

Why does this distinction matter so much before you even make an offer on a property? Because timber pests operate in the dark, and a standard home buyer report will glance at the walls without checking the roof timbers or crawling beneath the subfloor. If you do not ask specifically for a timber pest inspection that complies with local licensing rules, you could inherit a structurally compromised house with no legal recourse.

An inspection is only as good as the physical access the property allows, and standard rules dictate what can actually be checked. A roof void is usually deemed inaccessible if the manhole is smaller than 400 mm by 500 mm, or if the vertical crawl space is below 600 mm by 600 mm. Down below, the subfloor needs at least 400 mm of unobstructed vertical clearance between the ground and the lowest timber joist, alongside an entry hatch of at least 500 mm by 400 mm. If an inspector cannot physically slip beneath the house or crawl into the roof space safely, those spots must be flagged as high-risk blind spots.

Outside, the property layout matters just as much as the interior. Inspectors are required to check all structures, fences, and trees or stumps wider than 100 mm up to a distance of 50 meters from the main building boundaries. They also look closely for the external perimeter slab edge, where a minimum 75 mm unobstructed visual band must be kept free of soil, mulch, or paving. If a previous owner has piled garden beds or concrete paths right up against the brickwork, they have effectively hidden the entry points where subterranean termites love to build their mud tubes.

How can you tell if the inspector actually looked where they were supposed to look? The written report must explicitly list every area that was excluded due to lack of access or locked doors. If the report glosses over the subfloor or the roof space with vague assurances, you need to stop and ask why those critical zones were left unchecked.

Once the physical assessment wraps up, your focus shifts to the paperwork and what it reveals about the home history. You want to walk straight to the electrical meter box and check for a durable notice, which acts much like a service logbook in a car glove compartment. This permanent label tells you when a chemical barrier was last installed, what product was used, and when it is due for replenishment. If that notice is missing or faded beyond recognition, you are looking at a property with an unknown treatment history.

If the inspector spots active subterranean termites or severe conditions conducive to attack, they cannot just hand you a bill and walk away. They must issue a separate management proposal under Australian Standard AS 3660.2, detailing chemical soil barriers, reticulation systems, or baiting protocols. At that point, your practical choice is simple: do not try to spray the visible insects with a household aerosol. Disturbing subterranean workers only causes them to retreat and chew through a different wall completely, buying time while hiding the damage.

What happens if the report reveals past damage that has already been repaired? You should ask for receipts and compliance certificates for any previous structural remediation, because cosmetic fixes often cover up ongoing moisture problems that attract new colonies.

There are moments during a property evaluation where a standard pest technician has to hand the baton to another specialist. If the inspection uncovers moderate to extensive structural damage or borer attacks, you need to involve a licensed building contractor or a structural engineer to evaluate whether the framing can hold weight or needs immediate replacement. Pest inspectors report on pest presence and visible damage levels, but they are not structural engineers.

Certain discoveries also trigger immediate legal obligations rather than just personal repair decisions. If an inspector finds regulated exotic pests like the European House Borer or the West Indian Drywood Termite, state biosecurity laws mandate official reporting to Western Australian government authorities. Furthermore, if you or anyone in your household experiences severe allergic reactions, respiratory irritation from subfloor dust, or chemical exposure after a treatment, bypass the pest manuals entirely and contact a medical clinician or the Poisons Information Centre right away.

Who should you call first if a major infestation is uncovered just before your settlement date? Coordinate closely with your settlement agent or conveyancer to understand your contractual rights under the pest clause, while your licensed pest manager drafts the necessary treatment plan.