Termite Damage in Sydney: The Numbers

• Up to a third of Australian homes have been found infested with termites in at least one hazard-mapping study.
• More than $1.5 billion a year in termite damage to Australian homes, according to University of Technology Sydney research reported in 2025.
• $18,000 to $50,000, a repair-cost range AEPMA's site cites, sourced from a 2005 Queensland Department of Work study. A separate, older AEPMA-linked figure puts the average closer to $10,000. Both are shown here because the two sources don't agree, and neither should be quoted as the single true number.
• 12 months is the maximum gap allowed between termite inspections under AS 3660.2. Annual inspection isn't a sales pitch, it's the standard.
• Home insurance will not usually cover termite damage. More on why below.
• 185 Sydney suburbs where Active Termite Control maintains dedicated local service coverage, confirmed in a July 2026 site-wide audit, with job records spanning 2016 to 2026.

CSIRO's termite research places New South Wales in the "moderate to very high" risk band for termite attack, with risk generally increasing the further north you go. Sydney sits inside that band, not at its edge. CSIRO's own current material doesn't publish a precise Sydney percentage, so we won't invent one, but the risk classification itself comes straight from CSIRO.

What we can speak to directly is our own footprint. Active Termite Control's job records span 2016 to 2026, with a clear jump in volume from 2021 onward. Of the dated jobs in that record, 60 are termite or timber-pest inspections, 9 are pre-construction collar or sheeting jobs, and 7 are treatments, with the rest split across general pest work and administrative entries like invoices and reports. We service across 185 Sydney suburbs, a footprint confirmed in our July 2026 site audit. Sydney's older housing stock, Federation, interwar, and post-war brick homes in particular, sits on soil and in conditions termites have had a long time to find.

One thing our own data can't tell you, and we won't pretend it can: how many of those inspections found live termites versus nothing at all. Our records show job type, not outcome, so we're not putting a "1 in X inspections finds termites" figure on this page. If we don't have the number, it doesn't go here.

Here's the part that catches people out. Home insurance will not usually cover termite damage. Insurers generally treat termite damage as a gradual, preventable event rather than a sudden one, and many policies specifically exclude damage from insects, vermin, and rodents. That means the $18,000 to $50,000 repair range cited above is money most homeowners would be paying out of pocket, not through a claim.

Some pest control providers offer separate termite-specific policies, distinct from home insurance, that cover timber replacement. These typically run three to five years and require annual inspections to stay valid. That detail matters because it's the same structure our own warranties use.

An annual termite inspection costs a fraction of what an active infestation costs to fix. The range AEPMA's site cites for repair costs, where a property is affected, drawn from a 2005 Queensland Department of Work study, is $18,000 to $50,000. An older AEPMA-linked estimate from 2012 put it closer to $10,000 per house with roughly $4 billion in annual cost to the housing industry nationally. UTS research reported in 2025 puts the national damage bill above $1.5 billion a year. Whichever figure you use, the shape of the comparison holds: routine inspection is the cheap side of that ledger, and repair is the expensive side.

This is also why our own warranty structure is conditional, not unconditional. Our 8-year warranty on post-construction chemical barriers and our 50-year warranty on pre-construction physical barriers both require keeping up annual inspections to stay valid. That's not an upsell, it's the same annual-inspection principle AS 3660.2 sets as the standard minimum gap between inspections.

Two standards do most of the work here. AS 3660.2 sets inspection intervals: no more than 12 months apart for ongoing termite management, and no more than 6 months apart where termites are actively being managed. Pre-purchase inspections follow a related standard, AS 4349.3.

The National Construction Code, Part 3.4, sets the new-build side: every new residential building requires a termite management system, with no size or value threshold, unless the primary structure is built from termite-resistant materials like steel, concrete, or masonry. The management system, whether a physical barrier like TermSeal or a chemical system like Termidor, has to comply with AS 3660.1 or pass the testing in AS 3660.3. New builds also require a durable notice, permanently fixed somewhere prominent (commonly near the meter box), stating which system was installed, when, the expected life of any chemical used, and the recommended future inspection schedule. In our experience that notice is one of the most commonly missed items at handover.

Our own services map directly onto this framework. Chemical barriers use Termidor, with warranties up to 8 years. Physical barriers use TermSeal, pre-construction only, not retrofittable to existing homes, with a 50-year warranty. Monitoring and baiting systems use Trelona or Nemesis depending on the site. Every inspection uses thermal imaging and a moisture meter, and the written report gets handed over on-site, before we leave the property, not sent through days later.

Every figure on this page traces to a named source. In summary:

• CSIRO termite hazard-mapping research (1999/2000 study, cited via secondary source) and CSIRO's current "Managing Termites" material (2024).
• University of Technology Sydney research on national termite damage cost, as reported by Canstar (2025).
• AEPMA's 2012 industry study on repair and industry cost (via Archicentre, article dated 2017, updated 2025), and the $18,000 to $50,000 range cited on AEPMA's site, sourced from a 2005 Queensland Department of Work study.
• Archicentre's 2003 infestation survey.
• Finder.com.au on home insurance and termite damage exclusions (updated 2024).
• AS 3660.2 (2017 revision), summarised by AEPMA.
• The National Construction Code, Part 3.4, Termite Risk Management (2022 edition as adopted).
• Active Termite Control's own verified service facts and job records, current as of 2026.

Where sources disagreed on a figure, both are shown rather than one being picked silently. Two further figures were deliberately left out because we could not verify them.