Building and pest inspections typically do not have a specific expiry date, but the information contained in the inspection report may become outdated over time due to changes in the condition of the property or the surrounding environment. The report will only reflect the condition of the property at the time of the inspection, and it may not take into account any subsequent changes or repairs that have been made. If you are considering purchasing a property that was inspected some time ago, it is recommended that you arrange for a new inspection to be conducted to ensure that you have up-to-date information about the condition of the property. This can also be especially important if you have concerns about the potential for pest infestations or any other issues that may have arisen since the last inspection.