Termite treatment cost in Sydney

By the WTD team · Updated June 2026

Termites are the most expensive pest a Sydney home can have. A barrier or baiting system runs $2,500 to $5,500, an active infestation $3,500 and up — but a $350 inspection is what stands between you and a five-figure repair bill.

Quick answer — termite treatment cost in Sydney

Why termites are the big-ticket pest in Sydney

Most of greater Sydney sits in a high-to-extreme termite risk zone, and subterranean termites can do serious structural damage to a home in a matter of months — quietly, from inside the timber, where you cannot see it. The detail that catches owners out is that standard home and contents insurance specifically excludes termite damage, so both the treatment and any repairs land entirely on you. That is exactly why a routine inspection is the cheapest insurance you can buy.

Chemical barrier vs baiting system

A chemical soil barrier is liquid termiticide trenched and drilled around the perimeter of the home to create a continuous treated zone. It works fast, protects for roughly 5 to 8 years, and runs $2,500 to $5,500 depending on perimeter length and how much has to be drilled through concrete or paving. A baiting system uses in-ground stations to eliminate the colony itself, runs $3,000 to $4,500 for the install and first year, then around $300 to $600 a year for monitoring. Barriers are the prevention play; baiting is often chosen when there is an active colony to wipe out. Plenty of Sydney homes end up with both.

What drives the price up

Four things move the number: the size and perimeter of the home, the construction type (slab-on-ground, suspended subfloor, or brick), how much of the barrier has to be drilled through paving, paths and driveways rather than simply trenched into soil, and whether there is an active infestation that needs treating before the barrier can go in. A large two-storey home on a complex footprint can sit well above the typical range.

Itemised example — active infestation, Ryde, brick-veneer on slab

Frequently asked questions

How much is a termite inspection in Sydney?

A visual inspection runs about $250 to $350; adding thermal imaging and moisture readings pushes it to $400 to $450 and is far more thorough. In Sydney's risk zone an annual inspection is the cheapest protection you can buy.

Chemical barrier or baiting system — which is better?

A chemical barrier creates a treated zone around the home and protects for 5 to 8 years, which makes it the prevention option. A baiting system works to eliminate the colony and is often chosen for an active infestation, with ongoing monitoring. Many Sydney homes use both.

How often should I get a termite inspection?

At least once a year across almost all of Sydney, and every six months on high-risk or recently treated properties. Termites can do significant damage between annual checks, so don't stretch the interval.

Does home insurance cover termite damage?

Almost never. Standard home and contents policies specifically exclude termite and other pest damage, so the treatment and any structural repairs fall on the owner — which is exactly why prevention is worth the spend.

What are the signs of termites?

Mud tubes on walls, piers or foundations, timber that sounds hollow when tapped, sticking doors or windows, and discarded wings near light fittings. If you spot any, book an inspection and don't disturb the workings — disturbing them can make the colony retreat and spread.