Completed slab with a perimeter termite barrier in place

Inner West · AS 3660.1

Pre-Construction Termite Barriers Stanmore

Old timber floors in Stanmore's terraces and semis near Newington College, postcode 2048, still suit termites, and every rebuild here needs a barrier closed off before the pour.

Postcode2048
DistrictInner West
From the CBD4.8 km south-west
CouncilInner West Council

Quick answer

Yes, a knockdown rebuild or new build in Stanmore needs a termite management system under the NCC, since the suburb sits in a termite-prone part of Sydney. The system is installed to AS 3660.1 before the concrete pour, with collars fitted at every penetration. A durable notice for the meter box and an installation certificate for the certifier are both required before the Occupation Certificate.

Termite barriers in Stanmore

Why Stanmore builds need the barrier in before the pour

Stanmore is a compact Inner West Council suburb in postcode 2048, about 4.8 km south-west of the CBD, home to Newington College, whose 1881 Gothic Revival building is heritage listed, along with Stanmore Public School and Saint Michael's Catholic Primary School. Stanmore station is also heritage listed, and parks are small, including Weekley Park, Crammond Park and Montague Gardens, with shopping clustered near the station and along Parramatta Road. The suburb's streets are mostly older terraces and semis, and rebuild and renovation work on these tightly built homes makes up almost all of our activity here.

Old timber floors and roof spaces in Stanmore's terraces and semis still suit termites, and shared party walls mean a barrier detail on one property genuinely affects the one next door. With few large green spaces, small gardens and courtyards become the important shelter in Stanmore, holding whatever moisture reaches them close against older brickwork rather than dispersing across an open block. A rebuild here needs both of those factors weighed together: the age of the original timber, and how tightly the property sits against its neighbours, before we finalise a barrier design.

Reviewed by Ismail, founder · Inner West coverage · Updated September 2026 · More Inner West suburbs

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Perimeter barrier in place as framing begins
Perimeter barrier in place as framing begins — one of our own Inner West installations.

Local conditions

What makes Stanmore blocks a termite risk

Three local conditions shape how we detail a barrier in Stanmore.

Old timber floors and roof spaces

Stanmore's terraces and semis carry old timber floors and roof spaces that still suit termites, decades after they were first built. We check existing sub-floor conditions before recommending a new system for any rebuild here.

Shared party walls between terraces

Terraces and semis share walls across much of Stanmore, so a barrier detail on one property has to consider what sits next door. We plan collar and perimeter positions around shared boundaries rather than an isolated block.

Small courtyards holding moisture

With few large green spaces, small gardens and courtyards become the important shelter in Stanmore, holding moisture close against older brickwork. That concentrated dampness is exactly what subterranean termites forage through in a tightly built suburb like this.

What we install here

Building in Stanmore

Stanmore work is mostly knockdown rebuilds and major renovations of the suburb's older terraces and semis, given how little vacant land remains this close to the station and Parramatta Road. Waffle pod and raft slabs suit most sites, and we fit collars to every pipe and conduit penetration, running the perimeter to the true boundary while accounting for shared party walls where they apply. We pay particular attention to small courtyards and garden beds built up against original brickwork, and we schedule around your builder's program throughout.

  • Under-slab membraneA termite-resistant sheet laid across the prepared ground before the pour.
  • Penetration collarsCollars sealed to every pipe and conduit that comes up through the slab.
  • Perimeter & slab edgeA barrier at the slab edge and into the cavity, so nothing can track up hidden.
  • Chemical soil barrierAn APVMA-registered treated zone in the soil under and around the building.
  • ReticulationA pipe network laid before paving so the treated zone can be topped up later.
  • Piers & suspended floorsProtection for bearers, piers and suspended timber floors on sloping blocks.

Local knowledge

Around Stanmore

Weekley Park sits close to much of our Stanmore work, its small footprint a reminder of how little open green space the suburb has to spare. Stanmore station, heritage listed like much of the local area, marks the busier commercial edge near Parramatta Road. Norton Plaza and the takeaway shops along the highway sit a little further out, but for most Stanmore rebuilds it's the tight terrace streets themselves, with their shared walls and small courtyards, that shape the barrier plan.

Stanmore is certified through Inner West Council, and getting to an Occupation Certificate here relies on two records: a durable notice fixed inside the meter box, and an installation certificate that details the products used, the areas treated and the licensed installer. We turn both around as soon as our stage of a Stanmore rebuild finishes, terrace or semi, so paperwork never becomes the holdup.

Slab date locked in?Tell us the pour date and we will book the stages around your builder.

Stanmore at a glance

Termite barrier facts for Stanmore

SuburbStanmore, NSW 2048
DistrictInner West
Distance from Sydney CBD4.8 km south-west
Certifying councilInner West Council
Standard appliedAS 3660.1 termite management systems
InstalledBefore the slab pour, then staged through the build
Documents suppliedInstallation certificate and durable notice
Typical builds coveredNew homes, knockdown rebuilds, granny flats, duplexes, townhouses

Systems we install

The right barrier for your slab and your site

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.

Physical termite barrier laid over the slab preparation01

Under-slab membrane

A termite-resistant sheet laid over the whole prepared footprint before concreting, so termites can't come up through the slab anywhere.

Penetration collars fixed through mesh before concreting02

Penetration collars

A sealed collar on every pipe, conduit and service that passes through the slab. These gaps are the most common hidden way in.

Completed slab with a perimeter termite barrier in place03

Slab edge & cavity barrier

Protection at the slab edge and into the wall cavity, which stops termites building hidden tunnels up the outside of the slab.

Chemical soil barrier applied along a brick footing04

Chemical soil barrier & reticulation

An APVMA-registered termiticide zone in the soil, with an optional pipe network under paving so it can be recharged later without digging.

Termite barrier beneath a suspended timber floor05

Suspended floors & piers

Barriers for bearers, piers and raised timber floors on sloping or elevated blocks, where there's no slab to protect.

Perimeter barrier run against a sandstone wall06

Retaining walls & tricky sites

Detailing for sandstone cuts, block retaining walls, step-downs and cut-and-fill sites, which are common across Sydney.

Why during construction

Do it now, or pay more to do less later

A retrofit can only treat around a finished house. A pre-construction system protects the parts nobody will ever be able to reach again.

Costs far less

A barrier put in during the build costs a fraction of a post-construction system, and far less than repairing termite damage.

Meets the NCC

New houses (Class 1) and outbuildings (Class 10) with termite-susceptible framing need a compliant termite management system.

Hidden gaps sealed

Pipe penetrations and slab joints can only be fully protected while they're still open, before the concrete goes in.

The whole footprint

An under-slab system covers ground that no treatment from outside the finished house can ever reach.

No OC delays

Your certifier needs the certificate and durable notice before issuing the Occupation Certificate. We supply both together.

Easier to sell

Documented, compliant protection gives buyers, building inspectors and lenders confidence when the home is sold.

Installation stages

Installed in stages that follow your build

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.

Waterfront building site ready for pre-construction termite protection
Step 01Design / DA

Plans & fixed quote

Send your plans and slab details. We recommend a system and give you one fixed price that covers every stage.

Service penetration collars set out through the reinforcement mesh
Step 02Before the pour

Collars & under-slab

Collars go on every service once the plumber has set out, then the membrane or soil treatment is installed across the prepared site.

Perimeter barrier in place as framing begins
Step 03Walls going up

Slab edge & cavity

Perimeter and cavity protection is fitted as the brickwork or cladding goes up, so there's no unprotected gap at the slab edge.

Perimeter barrier on a new build in a Sydney estate
Step 04Before landscaping

Final perimeter

Where it's specified, the chemical perimeter or reticulation system is completed around the building before paths and gardens go in.

Barrier membrane visible along a finished slab edge
Step 05Pre-OC

Notice & certificate

A durable notice goes in the meter box, and the installation certificate goes to your builder and certifier.

Finished slab with a continuous perimeter barrier
Step 06Handover

Owner advice

The owner gets simple care instructions and an inspection schedule so the system keeps doing its job for years.

Compare systems

Physical or chemical termite barrier?

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

Physical membrane, mesh or graded stone

No chemicals
  • How it worksA layer termites can't chew through, laid under the slab or around its edge.
  • Life & upkeepDesigned to last as long as the slab while it isn't disturbed. No top-ups.
  • Good fit forSlab-on-ground homes, and owners who prefer a non-chemical option.
Get this quoted Natural, lasting defence

Entry-point protection

Penetration collars

  • How it worksCollars sealed around each pipe and conduit that passes through the slab.
  • Life & upkeepLong-lasting when fitted properly before concreting.
  • Good fit forEvery slab, usually paired with a perimeter system.
Get this quoted Small detail, big difference

Soil protection

Chemical soil barrier

  • How it worksA treated zone of termiticide in the soil under and around the building.
  • Life & upkeepDepends on the product label and soil conditions. Can be re-applied.
  • Good fit forTighter budgets and some complex sites.
Get this quoted Flexible and provable

Top-up protection

Reticulation system

Rechargeable
  • How it worksPipes laid before paving so termiticide can be pumped back into the soil.
  • Life & upkeepCan be recharged for the life of the building without lifting paths.
  • Good fit forHomes that will be surrounded by paving or landscaping.
Get this quoted Protection you can renew

Most of the Sydney builds we work on use a combination: physical collars on every penetration plus a physical or chemical perimeter.

Our technician installing a pre-construction termite barrier
Our technician installing a perimeter barrier on a live Sydney site.

For builders & developers

Built around your program, not ours

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.

What we need to quote

Architectural or slab planSlab type: raft, waffle pod or suspendedSite addressRough pour dateRetaining wall & step-down details

Fitting in with your trades

  • Collars in before the pour inspection
  • Slab edge & cavity as walls go up
  • Perimeter done before paving

Multi-unit & repeat work

Consistent pricing across lots, one point of contact and a full document set for every dwelling.

No certification delays

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

Everything you get at handover

A complete document set for the builder, the certifier and every future owner of the property.

Durable notice

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

Installation certificate

Written confirmation of the system and products used, the areas protected and our licence details.

For: builder, certifier, owner

Product information

Details of the physical system or termiticide installed, including safety data sheets for any chemicals.

For: builder, owner

Care & inspection advice

How to keep the system working, plus the recommended inspection frequency under AS 3660.2.

For: homeowner

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Pricing

What sets the price of a barrier

Every build is different, so we don't guess. We price from your plans and give you one fixed written quote. Quoting is free.

  • 01
    Slab area & perimeterBigger footprints need more material, more edge protection and more labour.
  • 02
    System typeFull under-slab, perimeter-only, chemical and reticulation options are all priced differently.
  • 03
    Number of penetrationsEach plumbing and electrical service through the slab needs its own collar.
  • 04
    Site complexityRetaining walls, step-downs, sandstone and suspended floors add detailing.
  • 05
    Number of visitsStaged installs follow your program. Multi-dwelling sites can often be combined.
  • 06
    Site accessTight blocks, steep driveways and limited street frontage slow the set-out and add time on site.
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After handover

Keeping the barrier working

A barrier only works while it stays intact and visible. Pass these on to the owner.

  • Keep at least 75 mm of the slab edge exposed. Don't cover it with soil, mulch or paving.
  • No garden beds or stacked timber against the house
  • Keep weep holes clear of render and debris
  • Fix leaking taps, downpipes and hot water units near the walls
  • Ask the installer before drilling through the slab or adding pipes
  • Book a timber pest inspection at least every 12 months
75 mm EXPOSED EDGE BARRIER UNDER THE SLAB
The inspection zone. An exposed strip of slab edge lets anyone spot termite mud tubes before they reach the frame, which is why paving, soil and mulch must stay below it.
Annual timber pest inspection Handed over recently? We inspect the barrier and the building every 12 months.

Free fixed quote

Protect your build
before the pour

Tell us about your build and get a clear, fixed price, fast. We usually reply within 30 minutes during business hours.

  • Send your detailsBuild type, suburb and rough slab pour date.
  • Share your plansSlab plan or architectural drawings, plus any retaining wall details.
  • Get your fixed quoteOne written price covering every installation stage.
Prefer to talk it through?+61 450 515 215 We're here to help 7 days, 7am to 9pm.
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  • Licensed expertsQualified & insured
  • Trusted locallyAcross Sydney

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Stanmore questions

Answered

Still unsure? Call and talk it through with a licensed technician.

+61 450 515 215
Do Stanmore's old terraces need checking before a rebuild?

Yes. Old timber floors and roof spaces in Stanmore's terraces and semis still suit termites, so we check existing sub-floor conditions before recommending a new AS 3660.1 system. That check matters even more in a suburb this dense, where a barrier detail affects the neighbouring property too, not just your own.

How does a shared party wall affect a Stanmore termite barrier?

Terraces and semis share walls across much of Stanmore, so we plan collar and perimeter positions with the neighbouring property in mind rather than treating the block as isolated. Small courtyards and garden beds built against original brickwork also get close attention given how little open ground the suburb has.

Which council certifies termite barrier work in Stanmore?

Stanmore is certified through Inner West Council, which needs a durable notice fixed in the meter box and an installation certificate that records the products, the treated areas and the licensed installer before it will sign off an Occupation Certificate. We prepare both as soon as our stage of the terrace or semi rebuild finishes.

Does a new home need a termite barrier in NSW?

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.

What does a pre-construction barrier cost?

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

We also install barriers around Stanmore

Same crew, same staging and the same certifier-ready paperwork, right across the Inner West.

Service areas

Termite barriers across 379 Sydney suburbs

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?

Lock in your termite barrier before the concrete truck arrives

Send us your plans today for a fixed quote, or call and talk to a licensed technician about your site.

Termite barrier work on a Sydney Harbour building site