Lower North Shore · AS 3660.1
Perimeter termite barriers installed to AS 3660.1 for Naremburn rebuilds on tightly spaced blocks, between the Warringah Freeway corridor and St Leonards station. We look at the whole site, not just the slab.
Quick answer
Yes, a rebuild or new home in Naremburn needs a termite management system, since the suburb sits in a termite-prone part of the City of Willoughby regardless of how built-up the surrounding streets are. The system is installed to AS 3660.1, with collars and under-slab work completed before the pour, and the durable notice plus installation certificate supplied to your certifier before the Occupation Certificate.
Termite barriers in Naremburn
Naremburn is a small suburb in the City of Willoughby, about 6 km north of the Sydney CBD, with the Warringah Freeway running through it on its way to the city, and a small shopping strip on Willoughby Road sitting about ten minutes' walk from Crows Nest. St Leonards station is close by to the west, and a former public school site in the suburb has been redeveloped for housing, adding to the mix of homes. Most of our work here is a knockdown rebuild or extension on an established, tightly spaced block.
Naremburn's termite issues are shaped by its position between busy centres rather than any dramatic bushland or waterway. Closely spaced houses and attached dwellings mean a barrier at one boundary is often just as relevant to the neighbour, and older homes on the redeveloped school site and surrounding streets can carry decades of timber that has never been checked. The freeway corridor and rail infrastructure near St Leonards add drains and embankments that keep some ground damper than typical suburban soil, conditions subterranean termites use just as readily as rats or cockroaches would.
Reviewed by Ismail, founder · Lower North Shore coverage · Updated September 2026 · More Lower North Shore suburbs
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Local conditions
Three conditions shape termite risk in Naremburn, driven more by density and infrastructure than by natural terrain.
Naremburn's closely spaced houses and attached dwellings mean termite pressure at one boundary is often relevant to the property next door. We inspect neighbouring structures as part of the quote, not just the block being rebuilt.
The former public school site and surrounding older streets carry decades of timber that has never been formally checked for termite activity. A rebuild here often starts by establishing what condition the neighbouring ground is actually in.
The Warringah Freeway corridor and rail infrastructure near St Leonards add drains and embankments that keep some Naremburn ground damper than typical suburban soil. We factor that moisture into perimeter detailing on nearby blocks. This is part of our standard local process.
What we install here
We work on Naremburn knockdown rebuilds, extensions and granny flats on tightly spaced, established blocks, including infill sites on the former school land. We install under-slab membrane, collars and a physical or chemical perimeter suited to attached and closely spaced dwellings, with particular attention to party walls and shared boundaries. One fixed quote from your plans covers every stage. We bring the right materials for your specific slab design. Nothing here is guesswork, it is measured straight off the plans.
Local knowledge
Our Naremburn work sits close to Fred Hutley Reserve, where mulch and leaf litter shelter pests near several homes, and near St Leonards station, where rail corridor drains add moisture to nearby boundaries. Around Willoughby Road and Northbridge Plaza, our work is mostly infill rebuilds on tightly spaced blocks rather than larger multi-dwelling sites. That is how we keep quotes accurate on the ground.
Naremburn is certified through the City of Willoughby, which requires the standard termite documentation before it will issue the Occupation Certificate: a durable notice is placed in the meter box, and an installation certificate lists the installer's licence, which areas are protected and what products went in. We supply both, along with product data, as soon as the barrier work is finished.
Naremburn at a glance
| Suburb | Naremburn, NSW 2065 |
|---|---|
| District | Lower North Shore |
| Distance from Sydney CBD | 5.7 km north |
| 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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Real, verified reviews from homeowners and businesses we've worked with.
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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Naremburn questions
Still unsure? Call and talk it through with a licensed technician.
+61 450 515 215Yes. Tightly spaced or attached homes mean the perimeter has to be planned around shared boundaries and party walls, so we check the neighbouring structure as part of the quote. The barrier itself still follows the standard collars, membrane and perimeter to AS 3660.1. Just get in touch and we will talk through the details.
It can add moisture through drains and embankments near the corridor, which subterranean termites are quick to use. We assess your block's actual proximity to the freeway or rail line before recommending a physical or chemical perimeter. We treat every quote as specific to your actual block. We are happy to talk through the specifics once we see your plans.
After the plumber has set out the drainage and before the concrete is poured, the same as any new build. On a tight inner-suburb block we also plan around scaffolding and limited access, so let us know those constraints early. Reach out early so we can lock in a suitable date.
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 Lower North Shore.
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.
