Penrith & the Outer West · AS 3660.1
New slabs, collars and perimeter membrane fitted on Cambridge Park knockdown rebuilds, replacing 1950s fibro homes on their original quarter-acre blocks near Lincoln Park and the sports centre.
Quick answer
Yes, a knockdown rebuild replacing an older fibro home in Cambridge Park needs a termite management system, since the NCC applies to the new dwelling regardless of what previously stood on the quarter-acre block. AS 3660.1 sets the standard, with collars fitted before the pour and the old raised-floor structure cleared. Penrith Council will not release the Occupation Certificate without a durable notice and matching installation certificate.
Termite barriers in Cambridge Park
About 46 km west of the Sydney CBD, in postcode 2747 and Penrith's north ward, Cambridge Park grew out of farmland subdivided from the old Werrington estate, developed mainly through the 1950s when its post office first opened. The suburb is known for fibro houses on quarter-acre blocks set along straight, grid-style streets, quite different from the curving layouts of newer Penrith estates further out. As that original housing stock reaches the end of its life, knockdown rebuilds are becoming a common sight, replacing raised timber-floor fibro homes with new slab-on-ground houses on the same generous blocks.
Homes of that 1950s era need a particular approach when a rebuild is planned. Many original houses have raised timber floors, timber stumps or piers, and roof spaces with gaps that have opened up over decades, so termites, rats and possums have often already found a way in. Large backyards typically hold sheds, woodpiles and fruit trees that shelter spiders and rodents close to the building line. Older fibro sheeting on a house still standing next door or being demolished on site may contain asbestos, so a new barrier system has to be planned around non-invasive methods that avoid drilling or disturbing that material.
Reviewed by Ismail, founder · Penrith & the Outer West coverage · Updated September 2026 · More Penrith & the Outer West suburbs
Get my fixed quote
Local conditions
Three things shape how we plan a termite barrier for a Cambridge Park rebuild, each tied to the suburb's 1950s origins.
Many original Cambridge Park houses sit on timber stumps or piers with roof gaps that have widened over seventy years, so termites, rats and possums have often already established themselves before a rebuild even starts. Clearing that structure properly is the first step before a fresh, compliant barrier goes in.
The generous quarter-acre blocks typical of the suburb usually carry a shed, a woodpile or fruit trees that give spiders and rodents cover close to the house. A rebuild is a chance to clear that harbourage back from the new slab edge before the barrier is installed.
Fibro cladding common on original Cambridge Park homes may contain asbestos, so barrier work around any remaining fibro structure has to avoid drilling or disturbing the sheeting. We plan the system around non-invasive methods on these sites rather than standard drilled applications.
What we install here
Most of our Cambridge Park work is knockdown rebuilds replacing 1950s fibro homes with new slab-on-ground houses on the same quarter-acre blocks. We fit collars to every plumbing and services penetration ahead of the pour, and where an existing fibro structure remains nearby during works, our methods avoid drilling or disturbing sheeting that may contain asbestos. One written quote from the plans covers demolition-stage soil treatment through to the finished perimeter system.
Local knowledge
Lincoln Park and the Penrith Valley Regional Sports Centre, both about 0.7 km away, bring irrigated turf, bins and garden edges that keep rodents, ants and mosquitoes active on nearby streets. Dunheved Golf Club, roughly 2.2 km off, adds more watered open ground to the wider area. On the quarter-acre blocks between these landmarks, old sheds and fruit trees left from the original 1950s gardens are usually the closer source of harbourage we check first.
Penrith Council certifies rebuilds and new homes in Cambridge Park. It will not issue an Occupation Certificate until it has a durable notice fixed in the meter box and a signed installation certificate stating the products used, the extent of the protected area and our licence number. Where a rebuild replaces an older fibro home, we also note that the previous structure and any risk it carried have been fully cleared, so the certifier has a complete record for the new dwelling.
Cambridge Park at a glance
| Suburb | Cambridge Park, NSW 2747 |
|---|---|
| District | Penrith & the Outer West |
| Distance from Sydney CBD | 45.9 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
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.
Get a fixed quote
Cambridge Park questions
Still unsure? Call and talk it through with a licensed technician.
+61 450 515 215Yes, we plan around fibro sheeting rather than drilling or disturbing it, since older sheets on homes like these may contain asbestos. Where the structure is being demolished as part of a rebuild, the new barrier goes in on the fresh slab once demolition is complete and the site is clear, rather than being fitted through the old fibro walls.
It happens fairly often, given how many original homes here have raised timber floors, timber stumps and roof gaps that have opened up over seventy years. When we quote a rebuild we look for signs of existing activity so any treatment needed before the new slab goes in is accounted for, rather than discovered partway through the build.
Not necessarily, but sheds, woodpiles and fruit trees close to where the new slab edge will sit do give spiders and rodents cover, so pulling harbourage back from that line before installation helps the barrier do its job properly. We can advise on what to move as part of planning the job.
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 Penrith & the Outer 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.
