Oran Park Building
Inspections

The collar that costs a few dollars and lasts the life of the house

A fitting sealed into concrete, or a gap sealed into concrete.

Owner Inspections · Oran Park 2570 · 2026-01-13

In short: Termite collars not installed at slab penetrations on Oran Park pours.

What it does

Closes the gap around a pipe where it passes through the slab, shutting a concealed route from soil to structure.

What we recorded

Collars simply not fitted, on separate penetrations, on Oran Park slabs before the pour.

Why the timing is absolute

After the pour the penetration is sealed permanently around whatever is or is not there. There is no later opportunity.

Where it fits

Under AS 3660 it is one component of a termite management system, alongside perimeter treatment and inspection zones.

What to ask

For the termite management design for your lot, and for confirmation the collars are in before the pour is booked.

Written by the Owner Inspections team from inspections carried out in Oran Park. Licensed building practitioners, NSW Fair Trading licence 366177C.

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FAQ

Questions Oran Park owners ask about this

Does a missing collar mean termites?

No. It means one designed route is open. Whether that matters depends on the rest of the system and the conditions around the house.

Can it be fixed afterwards?

Not identically. Remedial treatment around the penetration is possible but it is a different solution to a collar cast in.

Whose responsibility?

The builder's, as the party installing the system to the design.

Is this common?

Common enough that it is the first thing we look for at pre-pour in this suburb.

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