Chemical Soil Termite Treatment Past Expiry Date
I located the durable notice and the recorded chemical treatment date is past the installer's nominated treated life (typically 8 to 10 years depending on product and soil). Once that window has passed I treat the perimeter as having no active chemical protection - the dwelling then relies on visual inspection alone. Any renewal should be recorded on a refreshed notice. Reference: AS 3660.1.
Causes
- Owner unaware of the expiry date recorded on the original durable notice
- Property changed hands without the expiry flagged in sale documentation
- Reticulation system present but never recharged on the manufacturer's schedule
Symptoms to look for
- Durable notice shows installation date more than 8 years prior with no renewal entry
- No invoices or certificates of renewal held by current owner
- Reticulation fill points present but showing no service history
Remedies
- Engage a licensed pest manager to recharge the reticulation system or apply a new perimeter soil treatment
- Update the durable notice with new chemical, date, contractor, and next renewal year
- Schedule annual timber pest inspections (AS 4349.3) in the interim
Worth asking our inspector about this specifically.
This is common across Perth stock and usually fixable without drama, but the scope of the fix varies. Every SURE inspection includes 12 months of free advice. Call out the defect by name and we check for it directly.