Pest Evidence in an Inspection Report

12 June 2024

Visible pest evidence can raise several questions: what produced it, whether activity is current and whether building material has been affected. A general inspection may not answer all three.

A practical approach

Ask whether a dedicated pest assessment is recommended and provide the location and photographs. Keep treatment questions separate from repair of damaged construction. Do not disturb contaminated or unsafe areas to investigate independently. Request written findings that explain the assessed extent and any remaining limitations.

Separate visible evidence from the extent of damage

Wood damage, droppings, discarded wings or other visible signs can raise questions about pests, but the age, activity and extent of the problem may remain uncertain. A general home inspection and a dedicated pest or wood-destroying-organism inspection are not necessarily the same service. Clarify the scope and arrange appropriate specialist input when recommended.

Ask whether the proposed work addresses active infestation, damaged construction, moisture conditions or several of those concerns. Treatment alone does not automatically repair structural damage. Equally, replacement of damaged trim may not resolve an underlying infestation. Keep inspection, treatment and repair records separate but connected so the sequence is clear. Do not disturb nests, contaminated areas or damaged supports during an informal follow-up.

Know when an engineering question is separate

A general inspector may identify conditions that call for structural evaluation without being able to establish the cause, capacity or repair design. Movement, altered supports and unusual loading questions can require an appropriately qualified engineer or other relevant specialist. The need for referral is useful information, not a failure of the inspection.

Give the specialist the report, photographs and available history of alterations or previous repairs. Ask what needs to be examined before any design or reassurance is offered. Avoid removing supports, opening structural assemblies or testing a questionable area by loading it. A contractor's repair estimate is not automatically an engineering assessment. Keep the roles clear so the proposed work follows an appropriate diagnosis rather than a cosmetic interpretation of the visible symptoms.

Make photographs useful rather than dramatic

A good condition record includes an overview that establishes location and a closer image that shows the detail. Keep original files and label them with the room or exterior side, date and short observation. Avoid filters, extreme cropping or annotations that hide the surrounding construction. A close-up of a crack without scale or context can be difficult to interpret later.

Photographs do not prove every diagnosis. They may show staining without establishing whether moisture is still present, or show a panel cover without revealing the internal equipment. Record what is visible and leave uncertain conclusions open. When sharing images, remove unnecessary personal information from occupied homes. The aim is to help the relevant professional locate and understand the issue, not to create an alarming collection of isolated details.

An example to work through

A treatment proposal may address an infestation while leaving damaged timber for a separate assessment. Completing one service does not automatically complete the other.

What to check

Clarify current activity versus old evidence.
Separate treatment and repair scopes.
Keep assessed extent and limitations.