Updated October 2026
Kurnell sits out on the peninsula at the mouth of Botany Bay, with ocean on one side, the bay on the other and industry as a neighbour. For concrete, that means two constant pressures. The ground is sand, and the air carries salt from every direction. Concrete that lasts in Kurnell is concrete specified for the conditions, with proper cover over the steel, good compaction under the slab and a sealer on decorative surfaces.
We are not a concreting business. We are a referral service that connects you with experienced, insured local concreters who work in coastal conditions like Kurnell's.
Common concreting jobs in Kurnell
Residential work includes driveways and hardstands for boats and trailers, which the suburb has plenty of, slabs for sheds and garages, paths and patios and repairs where salt and age have worn surfaces or rusted reinforcement. Exposed aggregate holds up well visually in sandy, salty settings, which makes it a common choice here.
How the process works
Tell us what you need. We pass the job to a local concreter who services Kurnell, and they call you back with a quote, at no cost to you.
It is worth asking every concreter who quotes what they are doing differently because the job is at Kurnell. Sensible answers mention compacting the sand base, cover over reinforcement for the marine environment and sealing. A quote that ignores the location is a quote to question.
What concreting costs in Kurnell
As a guide, plain concrete typically costs around $75 to $150 per square metre laid, exposed aggregate and decorative more. Coastal-grade detailing can add a little, and it is worth it, because rusting reinforcement is what ends a slab's life near the sea.
Also note that in NSW any residential concreting work worth more than $5,000 (labour and materials, including GST) must be done by a licensed contractor. Verify the licence and insurance before anyone pours.
Frequently asked questions
Why does concrete fail faster near the coast?
Salt reaches the steel inside the slab and rusts it. The rust expands and cracks the concrete from within. Extra cover over the steel and the right mix slow that down dramatically.
Is a sand block a bad base for a driveway?
No, compacted sand drains and performs well. The failure mode is poor compaction, so make sure base preparation is itemised in your quote.
Can a hardstand for the boat go beside the house?
Usually, subject to space and any approval requirements. The local concreters we work with can quote boat and trailer hardstands around Kurnell.
Nearby, we also cover Greenhills Beach and Caringbah South.