The Hills District · AS 3660.1
Collars, under-slab membrane and perimeter barriers installed to the builder's program across Parklea, from new house-and-land releases to townhouse stages and granny flats near Sunnyholt Road.
Quick answer
Yes. A new home or townhouse in Parklea needs an NCC termite management system installed to AS 3660.1. Collars and any under-slab work go in after the plumber's rough-in and before the concrete pour. The durable notice for the meter box and an installation certificate for the City of Blacktown certifier are both required before the Occupation Certificate is issued.
Termite barriers in Parklea
Parklea is a small suburb in the City of Blacktown, postcode 2768, about 31 km north-west of the CBD. Its name dates from subdivision in the early 1900s, but the suburb today is mainly residential, with homes set among larger land uses including Parklea Correctional Centre, the long-running Parklea Markets on Sunnyholt Road and Parklea Garden Village, a community of transportable homes. Blacktown Leisure Centre Stanhope is close by, and the Blacktown-Parklea T-way links the area to Blacktown and Rouse Hill. Most of our work is new house-and-land and townhouse builds on the suburb's residential streets.
With detached houses and townhouses making up most of the new construction here, Parklea's termite risk follows the typical north-west Sydney pattern: recently cleared and landscaped ground close to a slab, where new turf and garden beds bring moisture within months of handover. Larger, mixed land uses nearby, including the market site and the correctional centre grounds, mean the suburb is not uniform in how it was developed, so we check each block on its own terms rather than assuming every site behaves the same way underneath. We ask what the land was used for before development when pricing a job in this area.
Reviewed by Ismail, founder · The Hills District coverage · Updated September 2026 · More The Hills District suburbs
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Local conditions
Three things shape termite risk on a Parklea build, tied to how recently the land was developed and what surrounds it.
Detached houses and townhouses make up most of Parklea's new construction, and landscaping packages bring turf and garden beds close to the slab within months of handover. We detail the slab edge and weep holes with that fast-arriving garden in mind, not just the bare block on the day of the pour.
Davison Reserve and other pockets of green space sit close to several Parklea streets, and established planting and leaf litter in reserves like this can shelter termite activity that forages toward nearby gardens. Blocks near these edges get the same perimeter attention as an older bush-fringed suburb.
Parklea combines standard residential streets with larger sites such as the market grounds and correctional centre land, so the ground a new build sits on is not uniform across the suburb. We check the specific conditions on each block rather than assuming every Parklea site was developed the same way.
What we install here
We work on Parklea new house-and-land builds, townhouse stages near Sunnyholt Road, and granny flats behind existing homes. Waffle pod and raft slabs are standard here, often several going in on the same street in the same week, so scheduling around the concreter's pour dates across a stage is routine for us. You get one fixed written quote from the plans, and we attend in stages so a barrier visit never holds up a pour.
Local knowledge
Most of our Parklea work sits within the residential stages near Davison Reserve and Glenwood Village Shopping Centre, where new slabs are going in close together and scheduling matters as much as the barrier detail itself. Toward Blacktown Leisure Centre Stanhope, irrigated grounds keep some neighbouring blocks damper for longer, which we factor into drainage checks on properties nearby. Access to the correctional centre and market land is coordinated separately when relevant.
The City of Blacktown wants a durable notice fixed inside the meter box, plus installer paperwork naming the products used, the coverage and the licence, before it will sign off an Occupation Certificate for a Parklea property. We put both together as soon as our stage of the work is complete, so nothing about the termite paperwork delays settlement on a new Parklea home.
Parklea at a glance
| Suburb | Parklea, NSW 2768 |
|---|---|
| District | The Hills District |
| Distance from Sydney CBD | 31.0 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
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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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Parklea questions
Still unsure? Call and talk it through with a licensed technician.
+61 450 515 215Yes. Every new home or townhouse in a termite-prone area needs an NCC-compliant termite management system installed to AS 3660.1, regardless of how recently the block was released. New turf and landscaping arriving soon after handover can bring moisture close to the slab quickly, so the barrier matters from the first pour.
As soon as you have a rough slab date from the builder. Collars and any under-slab system must go in after the plumber sets out the services and before the pour, and on active estate stages we coordinate closely with the site supervisor so our visit lines up with the broader construction schedule.
They need more attention to the perimeter rather than a different system. Established planting and leaf litter in reserves close to Parklea's streets can shelter activity that forages toward nearby gardens, so we run a fuller perimeter on blocks backing onto green space than on a block with no nearby reserve.
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.
