The Hills District · AS 3660.1
Termite barriers for Kellyville 2155 builds, covering semi-rural holdings, the Highlands and Elizabeth Macarthur estates and townhouse sites off Windsor Road.
Quick answer
New homes in Kellyville need a termite management system under the NCC, installed to AS 3660.1. Collars go on every service after the plumber's set-out, the under-slab component follows, and the perimeter is completed as walls rise. Your certifier must hold the installation certificate and the durable notice before issuing the Occupation Certificate.
Termite barriers in Kellyville
Kellyville has gone from rural land to one of the Hills District's largest residential suburbs, about 29 km north-west of the city in The Hills Shire. Its housing is unusually mixed: remaining semi-rural holdings, older suburban houses, newer estates such as Highlands and Elizabeth Macarthur, and medium-density townhouse developments near Kellyville Village and the Windsor Road strip. Metro Northwest has accelerated the medium-density side, so on any given month we are quoting an acreage replacement home, a volume-builder lot and a townhouse row in the same suburb.
Cattai Creek and its bushland run through Kellyville, which means a good number of homes sit against natural reserve. Creek corridors hold fallen timber and damp soil, the two things subterranean colonies need to establish, and they forage outward from there through the ground. On a building site the entry points are always the same: services passing through the slab, the slab edge itself, and joints in the concrete. Those can only be closed properly while the site is open, so the barrier is staged around the pour rather than retrofitted.
Reviewed by Ismail, founder · The Hills District coverage · Updated September 2026 · More The Hills District suburbs
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Local conditions
Three Kellyville conditions change how the barrier is detailed.
The creek and its bushland cut through the suburb, holding timber and moisture. Blocks backing that corridor are treated as bush-adjacent, with a continuous perimeter and close attention wherever the slab steps down towards the water.
Acreage, established suburban lots and new estate pads all build differently. Acreage adds outbuildings, estates add collar counts on compact footprints, and rebuild lots add decades of buried garden timber.
Medium-density pads carry dozens of penetrations across one slab. Collar numbers and staging between trades drive those jobs more than the footprint does.
What we install here
In Kellyville we install for new estate homes, replacement houses on older lots, granny flats, duplexes and townhouse developments. Waffle pod and raft slabs are standard, with piers and suspended floors where blocks fall towards the creek. Every penetration is collared, the under-slab membrane or treated zone goes in as specified, and the perimeter and cavity barrier follow as the walls go up. Multi-dwelling sites get a single program with per-lot documentation, all priced in one written quote.
Local knowledge
We work through the streets near Greyfair Place Reserve a few hundred metres from the centre, out towards Castle Hill Country Club and the Bernie Mullane Sports Complex around a kilometre and a half away, and along the Cattai Creek fringe where bushland meets back fences. Irrigated sporting fields and club turf keep soil moisture high along their boundaries, so nearby slabs get the same continuous perimeter treatment we use on reserve-adjacent blocks.
Kellyville building work is certified through The Hills Shire. The certifier needs proof of the termite management system before the Occupation Certificate: an installation certificate listing products, protected areas and the licensed installer, plus a permanent meter box notice recording the system, its date and the inspection interval recommended for the building. We supply both at completion along with product information and the owner's maintenance advice.
Kellyville at a glance
| Suburb | Kellyville, NSW 2155 |
|---|---|
| District | The Hills District |
| Distance from Sydney CBD | 29.3 km north-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
Google reviews
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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Kellyville questions
Still unsure? Call and talk it through with a licensed technician.
+61 450 515 215It changes the detailing more than the choice of system. Creek-side blocks carry steady foraging pressure from established timber and damp ground, so the perimeter runs continuously and every step-down towards the corridor is detailed rather than improvised. Many owners there pair physical collars with a physical perimeter and add reticulation where landscaping will cover treated soil.
Twice at minimum. The first visit follows the plumber's set-out and finishes before the pour, covering collars and the under-slab component. The second comes as brickwork rises for the perimeter and cavity work. Volume-builder programs move quickly, so we confirm dates with the site supervisor and attend ahead of the pour inspection, not on the day.
Yes. Townhouse rows off Windsor Road are usually one slab with a high penetration count, so the work is priced on collars and staging rather than floor area. Each dwelling still receives its own durable notice and certificate so every lot can be certified and sold with complete documentation.
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 The Hills District.
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.
