Inner West · AS 3660.1
Wolli Creek's towers keep rising near the station interchange, and every one of them needs collars on dozens of penetrations before the slab is poured, which is where we come in.
Quick answer
Under the NCC, Wolli Creek is classed as termite-prone, so any new apartment or townhouse slab here needs a compliant termite management system before it can be occupied. Built to AS 3660.1, that means every plumbing penetration collared and the perimeter closed off ahead of the pour, with a certificate prepared for Bayside Council once the work is done.
Termite barriers in Wolli Creek
Wolli Creek sits in Bayside Council, postcode 2205, about 8.5 km south-west of the Sydney CBD. It was once industrial, but redevelopment in the 2010s turned it into a high-density residential and commercial area, and apartments now make up almost all of its homes. The suburb lies beside Wolli Creek and the Cooks River, and Wolli Creek station is a major hub linking the Illawarra and Airport and South lines, with parks including Cahill Park and Discovery Point Park nearby. Almost all of our work here is new apartment and townhouse slabs rather than standalone knockdown rebuilds, since the suburb has so little separate housing left.
A high-density development on a creek and river confluence brings its own set of termite considerations. Large apartment slabs can carry a very high number of plumbing and service penetrations, and any one missed collar becomes a route in once residents have moved in. The ground itself, close to both Wolli Creek and the Cooks River, tends to hold moisture that keeps subterranean termites active locally, so the perimeter has to be genuinely continuous rather than assuming a dry inner-city site. Once a tower is built and occupied, there's very little practical opportunity to fix a gap in the barrier.
Reviewed by Ismail, founder · Inner West coverage · Updated September 2026 · More Inner West suburbs
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Local conditions
Three factors shape how we approach a termite barrier on a Wolli Creek development.
Wolli Creek and the Cooks River both run close to the suburb, and low-lying ground near either waterway holds moisture that subterranean termites rely on to forage. Apartment slabs built near these boundaries get closer attention to perimeter width and drainage than a standard inner-city site.
A typical Wolli Creek apartment slab carries far more plumbing and service penetrations than a single house, and each one needs its own collar before the pour. Pricing runs off the penetration count, and we work closely with the plumber's rough-in schedule so nothing gets missed.
Once a tower near the station interchange is finished and tenanted, fixing a gap in the termite barrier means disruptive work through someone's home or a shared common area. We treat every penetration and perimeter section as final on install day, since there's very little chance to correct it afterward.
What we install here
Nearly all of our Wolli Creek work is new apartment and townhouse slabs, given how little standalone housing land remains in the suburb after the 2010s redevelopment. Podium and slab-on-ground construction both turn up depending on the site, and collars go on once the plumber has finished roughing in each stage. Pricing runs off the number of penetrations rather than a flat figure, and we stage visits tightly around the builder's construction program on what are often large, multi-stage sites.
Local knowledge
Much of our Wolli Creek work sits near the station interchange and Dharaggang Park, where new apartment entries back onto planted garden beds that shelter ants, spiders and rodents. Toward the Cooks River and Robyn Webster Sports Centre, irrigated grounds and moisture near the water add mosquito and rodent pressure that we factor into nearby collar work. Around ground-floor shops and cafes at the base of towers, food waste adds a further source of cockroach and rodent pressure indoors.
Bayside Council certifies Wolli Creek builds, and its Occupation Certificate process checks for documented proof a compliant termite system was installed. We fix a durable notice inside the meter box or a nominated common area once the barrier work is finished, and provide a separate installation certificate confirming the installer, products used and areas protected, prepared per building as the certifier requires.
Wolli Creek at a glance
| Suburb | Wolli Creek, NSW 2205 |
|---|---|
| District | Inner West |
| Distance from Sydney CBD | 8.5 km south-west |
| Certifying council | Bayside 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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Wolli Creek questions
Still unsure? Call and talk it through with a licensed technician.
+61 450 515 215Pricing is based on the number of penetrations through the slab rather than a flat per-dwelling rate, since a shared apartment slab near the station can carry a very large number of plumbing and service points. We provide one written quote covering the whole stage or building, and coordinate scheduling directly with the builder so the barrier work never holds up a busy site.
Ground close to Wolli Creek or the Cooks River holds moisture for longer than a typical inner-city site, and that's exactly the condition subterranean termites use to forage. We don't treat these sites as standard dry ground, and the perimeter and soil treatment account for that persistent dampness rather than assuming average conditions.
Once the plumber has roughed in a stage of the slab, collars go on before that section is poured, so we work directly off the builder's staged construction program rather than a single fixed date. Tell us the full staging plan early so collar counts and visit scheduling can be priced accurately from the outset.
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 Inner West.
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.
