Northern Beaches · AS 3660.1
Under-slab membrane and perimeter barriers detailed for North Manly's flat, low-lying blocks near Manly Creek and Warringah Golf Course, installed before the pour to your builder's program.
Quick answer
Yes. North Manly's flat, low-lying ground near Manly Creek makes it a termite-prone part of the Northern Beaches, so new homes need an NCC termite management system installed to AS 3660.1. Collars and under-slab work go in before the concrete pour. The durable notice for the meter box and an installation certificate for Northern Beaches Council are needed before the Occupation Certificate is issued.
Termite barriers in North Manly
North Manly is a small residential suburb about 11.8 km north-east of the CBD, in postcode 2100 and Northern Beaches Council. Unlike the hilly suburbs around it, much of North Manly is flat and low-lying, sitting only a few metres above sea level. Large green spaces take up a good share of the area, including Warringah Golf Course, Manly District Park and Nolan Reserve, with Manly Creek and the upper reaches of the Manly Lagoon system nearby. Housing is mainly freestanding homes, with some townhouses and units closer to the main roads, and our work here spans both knockdown rebuilds and multi-dwelling infill.
Flat, low ground near a creek and lagoon system drains far more slowly than the ridge-top suburbs nearby, and that is the main reason a North Manly barrier needs careful attention to drainage as well as the usual collars and membrane. Moisture that sits in the soil for longer gives subterranean termites easier movement toward a new slab, and the golf course's irrigated turf and ponds add to the groundwater nearby. Getting the slab edge, weep holes and under-slab system right before the pour matters more here than on a well-drained hillside block.
Reviewed by Ismail, founder · Northern Beaches coverage · Updated September 2026 · More Northern Beaches suburbs
Get my fixed quote
Local conditions
Three things push termite pressure higher on a North Manly block than on the ridge-top suburbs nearby.
North Manly sits only a few metres above sea level and is noticeably flatter than the suburbs around it, so water does not run off the way it does on a slope. Soil that stays damp for longer gives termites easier movement, so drainage falls and slab edge detailing get extra attention on these blocks.
Manly Creek and the upper reaches of the Manly Lagoon system run close to several streets, keeping nearby ground moist for longer than blocks further from the water. Homes near this corridor get the same careful perimeter treatment we would give a bush-edge block, because moisture is doing the same job as bushland does elsewhere.
Warringah Golf Course and the wider green space around Manly District Park and Nolan Reserve are irrigated and treed, adding groundwater and buried timber close to nearby boundaries. We factor that irrigated turf into how we plan the perimeter on blocks that share a fence line with it.
What we install here
We work on North Manly knockdown rebuilds and renovations on freestanding blocks across the flat, low-lying core of the suburb, plus townhouse and small multi-dwelling infill closer to the main roads. Waffle pod and raft slabs are standard here, with drainage detailing playing a bigger role than on higher ground nearby. You get one fixed written quote from the plans covering every stage, and we attend around your plumber's rough-in and the concreter's pour date so the barrier never holds up the build.
Local knowledge
Most of our North Manly work sits between Nolan Reserve and the wider green corridor toward Warringah Golf Course, where irrigated turf and creek-fed ground keep the soil damper for longer than the surrounding hills. Closer to Westfield Warringah Mall on the Brookvale boundary, sites are more often townhouse or small multi-dwelling infill, where collar counts on a shared slab drive the scheduling.
A North Manly build needs sign-off from Northern Beaches Council, which asks for a durable notice fixed inside the meter box plus a certificate from the installer that lists the products, the areas treated and the licence held. As soon as our stage of a North Manly job is finished, we have both documents ready for whoever is compiling the final Occupation Certificate paperwork.
North Manly at a glance
| Suburb | North Manly, NSW 2100 |
|---|---|
| District | Northern Beaches |
| Distance from Sydney CBD | 11.8 km north-east |
| Certifying council | Northern Beaches 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
North Manly questions
Still unsure? Call and talk it through with a licensed technician.
+61 450 515 215It changes how much attention drainage gets. Low, slow-draining ground near Manly Creek and the golf course stays damp for longer than a sloped block, and that moisture gives subterranean termites easier movement toward a slab, so we detail the drainage falls, weep holes and slab edge more carefully on these blocks.
The system itself is the same NCC-compliant barrier, but the scheduling is different. Multi-dwelling slabs near the main roads have more penetrations to collar in one visit, so we plan our attendance around the plumber and concreter's program for the whole site rather than a single house. We confirm collar counts from the plans before quoting so there are no surprises on site.
As soon as you have a rough slab date. Collars and any under-slab system need to go in after the plumber's rough-in and before the pour, so we lock our visit into that window. On low-lying blocks, tell us early if there is a known drainage issue so we can plan for it rather than react to it.
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 Northern Beaches.
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.
