Canterbury-Bankstown · AS 3660.1
Riverwood sits where Salt Pan Creek meets the Georges River, postcode 2210, and its post-war bungalows and rebuild sites need a compliant termite barrier closed off before the slab is poured.
Quick answer
Yes, a new home in Riverwood needs a termite management system. It is a termite-prone part of Sydney, so the NCC requires a compliant system installed to AS 3660.1, with collars and under-slab work done before the pour. The durable notice for the meter box and the installation certificate for the certifier both follow, and are needed before the Occupation Certificate.
Termite barriers in Riverwood
Riverwood is split between Georges River Council and the City of Canterbury-Bankstown, about 17 km south-west of the CBD in postcode 2210. The suburb was renamed from Herne Bay in 1957, after the site of a wartime army hospital became public housing, and post-war apartment blocks and bungalows spread through the streets, with private housing filling in the southern sections later. Riverwood station sits on the East Hills line, Riverwood Plaza anchors the shops, and the M5 Motorway cuts through the suburb. Most current work on the ground is knockdowns and rebuilds of those original bungalows, plus granny flats on the larger southern blocks, and each one needs a compliant barrier before the pour.
Salt Pan Creek, with mangroves along its banks, meets the Georges River right at Riverwood's edge, and that low, tidal ground keeps soil damp well back from the water itself. Subterranean termites forage through soil like that looking for timber, and a slab going down near the creek corridor needs every penetration and slab edge properly collared and sealed. The suburb's original post-war bungalows, many now due for rebuild, already carry decades of sub-floor timber that termites have had time to find, so what is already on the block matters as much as the new barrier.
Reviewed by Ismail, founder · Canterbury-Bankstown coverage · Updated September 2026 · More Canterbury-Bankstown suburbs
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Local conditions
Three things shape how we detail a barrier on a Riverwood block.
Where the creek meets the Georges River, mangroves and low banks keep the surrounding soil consistently damp. Blocks anywhere near that corridor get a full, continuous perimeter rather than a partial run, because moist ground is exactly what subterranean termites forage through.
Riverwood's original bungalows are now old enough that sub-floor timber has often carried termite activity for years before a rebuild starts. We check what is already in the ground before recommending a system, since old stumps and offcuts can feed a colony long after demolition.
The M5 Motorway cuts through the suburb, and road-corridor works nearby can unsettle soil and shift termite activity into neighbouring blocks. A barrier detailed for a Riverwood rebuild accounts for that disturbed ground rather than assuming undisturbed conditions.
What we install here
Riverwood work is mostly knockdown rebuilds of the suburb's original post-war bungalows, granny flats on the larger southern blocks, and occasional unit or townhouse sites near Riverwood Plaza and the station. Waffle pod and raft slabs are standard, with collars fitted to every penetration and the perimeter run to the true boundary rather than the slab edge. On blocks nearer Salt Pan Creek we pay closer attention to soil moisture and any retaining. We time our visit around the plumber's rough-in and the concreter's pour date, working to the builder's program throughout.
Local knowledge
Riverwood station and Riverwood Plaza sit within a few hundred metres of most of our work here, and rail corridors and busy retail strips are a reminder of how built-up the suburb's centre has become since the 1950s. The bigger factor for barrier detailing is Salt Pan Creek, whose mangroves and tidal flats keep nearby ground damp well inland. Phillip Street Reserve and Keppel Avenue Reserve add established tree cover on the northern side, and Hurstville Golf Course keeps a stretch of turf irrigated close to the suburb's edge.
Riverwood is split between Georges River Council and the City of Canterbury-Bankstown, and either certifier asks for the same two things before signing off: a durable notice mounted in the meter box, and an installation certificate setting out what was used, where it went and who installed it. We hand these over the moment our stage wraps up, along with product data sheets and maintenance advice, so nothing about a Riverwood rebuild or granny flat sits waiting on paperwork from us.
Riverwood at a glance
| Suburb | Riverwood, NSW 2210 |
|---|---|
| District | Canterbury-Bankstown |
| Distance from Sydney CBD | 17.1 km south-west |
| Certifying council | Georges River Council |
| Standard applied | AS 3660.1 termite management systems |
| Installed | Before the slab pour, then staged through the build |
| Documents supplied | Installation certificate and durable notice |
| Typical builds covered | New homes, knockdown rebuilds, granny flats, duplexes, townhouses |
Systems we install
Every photo below is from one of our own Sydney jobs. We look at your slab design, site and budget, then recommend a system or a combination.
01A termite-resistant sheet laid over the whole prepared footprint before concreting, so termites can't come up through the slab anywhere.
02A sealed collar on every pipe, conduit and service that passes through the slab. These gaps are the most common hidden way in.
03Protection at the slab edge and into the wall cavity, which stops termites building hidden tunnels up the outside of the slab.
04An APVMA-registered termiticide zone in the soil, with an optional pipe network under paving so it can be recharged later without digging.
05Barriers for bearers, piers and raised timber floors on sloping or elevated blocks, where there's no slab to protect.
06Detailing for sandstone cuts, block retaining walls, step-downs and cut-and-fill sites, which are common across Sydney.
Why during construction
A retrofit can only treat around a finished house. A pre-construction system protects the parts nobody will ever be able to reach again.
A barrier put in during the build costs a fraction of a post-construction system, and far less than repairing termite damage.
New houses (Class 1) and outbuildings (Class 10) with termite-susceptible framing need a compliant termite management system.
Pipe penetrations and slab joints can only be fully protected while they're still open, before the concrete goes in.
An under-slab system covers ground that no treatment from outside the finished house can ever reach.
Your certifier needs the certificate and durable notice before issuing the Occupation Certificate. We supply both together.
Documented, compliant protection gives buyers, building inspectors and lenders confidence when the home is sold.
Installation stages
A termite barrier isn't a single visit. Each part goes in when the site is ready for it, and we fit around your plumber, concreter and bricklayer.
Send your plans and slab details. We recommend a system and give you one fixed price that covers every stage.
Collars go on every service once the plumber has set out, then the membrane or soil treatment is installed across the prepared site.
Perimeter and cavity protection is fitted as the brickwork or cladding goes up, so there's no unprotected gap at the slab edge.
Where it's specified, the chemical perimeter or reticulation system is completed around the building before paths and gardens go in.
A durable notice goes in the meter box, and the installation certificate goes to your builder and certifier.
The owner gets simple care instructions and an inspection schedule so the system keeps doing its job for years.
Compare systems
Both can meet AS 3660.1. The best choice depends on your slab type, what surrounds the house and how much ongoing upkeep the owner wants.
Physical protection
Entry-point protection
Soil protection
Top-up protection
Most of the Sydney builds we work on use a combination: physical collars on every penetration plus a physical or chemical perimeter.
For builders & developers
Builders, developers and owner-builders get a fixed quote from plans, a technician who turns up when the site is ready, and paperwork that never holds up sign-off.
Consistent pricing across lots, one point of contact and a full document set for every dwelling.
Missing durable notices and unclear install records are a common reason Occupation Certificates get held up. We hand everything over together so your certifier has it all in one go.
Paperwork
A complete document set for the builder, the certifier and every future owner of the property.
A permanent notice in the meter box showing the system, install date, installer, any chemical's life expectancy and inspection advice.
For: certifier, owner, future owners
Written confirmation of the system and products used, the areas protected and our licence details.
For: builder, certifier, owner
Details of the physical system or termiticide installed, including safety data sheets for any chemicals.
For: builder, owner
How to keep the system working, plus the recommended inspection frequency under AS 3660.2.
For: homeowner
From real jobs
Photos from our own Sydney sites, not stock images. Tap any photo to see it larger.
Membrane barrier across a large residential slab
Barrier work on a Sydney Harbour site
Installation through sandstone excavation
Perimeter barrier and sleeves on a new slab
Waffle pod formwork with collared penetrations
Membrane detailed against a retaining wall
Membrane sealed around a column
Protected slab edge with collar in place
Collared penetrations before the pour
Perimeter barrier on a completed slab edge
Pipe penetrations sealed into the membrane
Collars fixed through mesh before concreting
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Pricing
Every build is different, so we don't guess. We price from your plans and give you one fixed written quote. Quoting is free.
After handover
A barrier only works while it stays intact and visible. Pass these on to the owner.
Free fixed quote
Tell us about your build and get a clear, fixed price, fast. We usually reply within 30 minutes during business hours.
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Riverwood questions
Still unsure? Call and talk it through with a licensed technician.
+61 450 515 215Blocks close to the creek and the Georges River sit on consistently damp ground, which is exactly the condition subterranean termites forage through. We still install a compliant AS 3660.1 system on every Riverwood job, but on creek-side blocks we run a full, continuous perimeter and look closely at soil moisture and any retaining before we finish the detailing.
Riverwood sits across Georges River Council and the City of Canterbury-Bankstown, so it depends on exactly where your block falls. Both want the same meter-box notice and installation paperwork listing what was used, where and by whom, before they'll grant your Occupation Certificate, so we have it ready either way.
Often, yes. Many Riverwood rebuild sites sit on blocks that carried a post-war bungalow for decades, and old sub-floor timber, stumps or buried offcuts can already hold termite activity. We check what remains in the ground before recommending a system, and clear old material away from the new barrier line where it needs to go.
In most cases, yes. The National Construction Code requires a termite management system for new houses and outbuildings in termite-prone areas where the primary building elements can be damaged by termites. Sydney is termite-prone, so the system is installed to AS 3660.1 and your certifier asks for the installation certificate and durable notice before the Occupation Certificate is issued.
It depends on slab area, perimeter length, the number of pipe penetrations, the system chosen, site complexity and how many visits the build needs. Send us the plans and we return one fixed written quote covering every stage. Quoting is free.
Nearby
Same crew, same staging and the same certifier-ready paperwork, right across the Canterbury-Bankstown.
Service areas
From the Eastern Suburbs and Inner West to the Hills, the Shire and the western growth corridors. Every suburb has its own page with the local ground conditions, the council that certifies the work and the questions builders there ask us.
Slab pour coming up?
Send us your plans today for a fixed quote, or call and talk to a licensed technician about your site.
