South West Sydney · AS 3660.1
Collars, membrane and perimeter barriers installed on new Carnes Hill homes as estates continue to fill in around Carnes Hill Marketplace and the Michael Clarke Recreation Centre.
Quick answer
Yes, a new home in Carnes Hill needs a termite management system, because Liverpool City sits in a termite-prone part of Sydney's south-west and the NCC applies to every new dwelling built here. Every collar goes in before the pour, following the AS 3660.1 standard throughout. Liverpool City Council needs the durable notice and installation certificate before it will grant the Occupation Certificate.
Termite barriers in Carnes Hill
Carnes Hill is a young Liverpool City suburb, established in 1998, in postcode 2171 about 34 km west of the Sydney CBD. Its homes are relatively modern, built on estates that replaced farmland, and new construction is still filling in some of those estates today. The centre of the suburb is a recreation and shopping precinct developed from 2016, with Carnes Hill Marketplace, a library, community centre, fitness centre, indoor courts, a skate park and AFL fields. Because so much of the housing here is recent, the barrier work we do is more often a first-time installation on a new home than a knockdown rebuild replacing something older.
Newer homes have fewer of the structural gaps an older house accumulates over decades, but they bring their own issues that matter once the barrier is in the ground. Many were built with a termite management system that needs regular inspection and can be undermined when owners later add garden beds, paving or landscaping over the protected zone without realising what sits underneath. New lawns and heavily mulched gardens, popular on these estates, also bring ants and spiders close to the house not long after the family moves in. Getting the system right at construction, and understood by the owner afterward, matters as much here as the install itself.
Reviewed by Ismail, founder · South West Sydney coverage · Updated September 2026 · More South West Sydney suburbs
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Local conditions
Three things matter for termite protection in Carnes Hill, tied to how recently the suburb has been built out.
New owners often add garden beds, paving or landscaping soon after moving in, and without knowing where the termite management system sits, that work can bridge over the protected zone. We explain the boundaries of the system clearly so it is not undermined by later renovations.
With Carnes Hill's estates still filling in, some new homes sit beside active building sites where soil is being disturbed and cleared. A fresh, fully compliant barrier matters as much on these blocks as on an established street, since disturbed ground nearby can push termites toward the nearest available timber.
New lawns and heavily mulched garden beds, common on these estates, bring ants and spiders close to the house not long after landscaping goes in. We look at how garden beds sit against the slab edge as part of the overall termite and pest plan, not just the barrier itself.
What we install here
Most of our Carnes Hill work is first-time termite management systems on new homes across the suburb's estates, along with regular inspections for owners who moved in a few years ago and want to check the system is still intact. Waffle pod slabs are standard, and each pipe or cable run through the slab is fitted with its own collar before the concrete truck arrives on site. Where a client is landscaping soon after building, we mark out the protected zone clearly so paving or garden beds do not compromise it later.
Local knowledge
Carnes Hill Marketplace, about 0.3 km away, brings supermarket and restaurant waste that can support rats and cockroaches in the streets beside it. Michael Clarke Recreation Centre, roughly 0.4 km off, and the surrounding sports fields add irrigated turf and bins that keep rodents and mosquitoes active nearby. Schoeffel Park, about 0.6 km away, provides grass and garden cover for ants and spiders, and for houses across these estates we check the termite management system first, then weep holes, garden beds and the eaves.
Liverpool City Council certifies new building work in Carnes Hill, and it wants two things confirmed before an Occupation Certificate is issued: that a termite management system is recorded on a notice inside the meter box, and that a signed certificate on file names the products used, the areas protected and our licence. Because so many homes here are relatively new, we also keep records that make later inspections straightforward, so an owner can confirm their system is still compliant years after the original build.
Carnes Hill at a glance
| Suburb | Carnes Hill, NSW 2171 |
|---|---|
| District | South West Sydney |
| Distance from Sydney CBD | 34.2 km west |
| Certifying council | Sydney CBD 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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Carnes Hill questions
Still unsure? Call and talk it through with a licensed technician.
+61 450 515 215Yes, adding garden beds, paving or a pergola over the protected zone can bridge a working termite management system without you realising it, giving termites a hidden path in. Ask us to mark out the boundaries of your existing system before landscaping starts, so the work goes around it rather than over it.
Yes, the NCC requirement applies to every new dwelling in a termite-prone area regardless of how new the surrounding estate is, and Carnes Hill qualifies. New estates being built out nearby can also disturb soil in ways that push termites toward the nearest timber, so a fresh, compliant system matters just as much here as on an older street.
At least every 12 months, since a termite management system reduces the risk of concealed entry but does not make a home termite-proof, and regular inspections are how any activity gets caught early. We can check the system alongside a general pest inspection so both are covered in one visit.
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 South West Sydney.
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.
