Pre-Purchase Pest Inspection in Perth — What You Need to Know

A pre-purchase pest inspection is one of the most important steps when buying a home in Perth. With WA having some of Australia's most active termite populations, purchasing a property without a pest inspection is a significant financial risk. Even properties that look immaculate can have hidden termite damage that dramatically affects structural integrity and value.

What's Checked in a Pre-Purchase Pest Inspection?

A pre-purchase timber pest inspection carried out to Australian Standard AS 4349.3 checks all accessible areas of the property for: active termite workings and termite damage; evidence of past termite activity; conditions conducive to termite attack (moisture, timber-to-soil contact, etc.); wood borer activity; and fungal decay in timber members. The inspector examines the roof void, subfloor (if accessible), all internal rooms, and the external perimeter including garden structures.

Combined Building and Pest Inspections

Most Perth buyers order a combined building and pest inspection. This gives you both a structural assessment (from a licensed builder) and a timber pest assessment (from a licensed timber pest inspector) at a combined cost of $500–$750. Some companies offer both services; others subcontract the pest inspection. If you order separately, ensure the pest inspector holds a valid PMT licence in WA.

Understanding the Report

Pest inspection reports use a risk-rating system. Don't be alarmed by mentions of "conditions conducive to termite attack" — this is very common in Perth and reflects things like garden beds touching the house or timber debris near the structure. These are manageable conditions. However, findings of active termites, recent termite activity (past 12 months), or significant timber damage are serious and should be assessed by a termite specialist before you proceed with the purchase.

Negotiating After a Pest Inspection

If pest damage or active termites are found, you have several options: request that the vendor treat the problem before settlement; negotiate a price reduction to cover treatment and repair costs; or withdraw from the contract (check your contract terms). Always get a separate quote from a licensed termite specialist for treatment costs before negotiating — pest inspection reports don't include remediation cost estimates.