Updated October 2026
Menai grew fast through the 80s and 90s, and the estates west of the Woronora share a common problem that keeps concreters busy across the 2234 postcode. Much of the area sits on reactive clay soil that swells when wet and shrinks when dry. Driveways and slabs poured thirty years ago have been flexing with that movement ever since, and the long diagonal cracks you see up and down Menai driveways are the result.
We connect Menai homeowners with experienced, insured local concreters who understand clay sites and build for movement rather than pretending it will not happen.
Common concreting jobs in Menai
- Replacing movement-cracked estate concrete driveways, most of them double width
- Large concrete slabs for double garages, workshops and extensions
- Concrete repairs where cracking is isolated and the base is still sound
- Exposed aggregate upgrades on homes being refreshed for sale
- Concrete paths and patios and pool surrounds in big Menai backyards
Menai blocks were designed for the two-car family, so driveways here are wide and slabs are big. That makes the square metre count, and the quote, larger than an equivalent job in an older suburb.
What a concreting job involves
On clay, preparation decides how long the slab lasts. After the site visit and written quote, the old concrete comes out, the clay base is excavated and a proper compacted road base layer goes in to buffer movement. Then formwork, steel mesh, the pour, finishing and curing. Control joints should be cut or tooled at sensible spacings so the slab cracks where it is told to, not wherever it likes.
Keep cars off the new surface for about seven days.
What concreting costs in Menai
Plain concrete typically costs around $75 to $150 per square metre laid, exposed aggregate and decorative finishes more. Double-width Menai driveways carry a lot of square metres, and extra base preparation on clay adds cost that is worth paying.
In NSW, any residential concreting job worth more than $5,000 (labour and materials, including GST) must be done by a licensed contractor. A full Menai driveway replacement is usually over that line.
Frequently asked questions
Why do Menai driveways crack more than ones closer to the coast?
Reactive clay. The soil under much of Menai expands and contracts with moisture, and rigid concrete sitting on it cracks unless the base and joints are designed for movement.
Will my new driveway crack too?
Concrete on clay will always move a little. Good base preparation, correct mesh and well-placed control joints keep that movement at the joints instead of as random cracks across the surface.
Can I pour a shed slab myself to save money?
Small slabs are possible for a confident DIYer, but on Menai clay the base preparation is where DIY jobs fail. And remember the $5,000 licensing threshold on contracted work.
Get a fast quote from insured local concreters. We also cover Bangor, Alfords Point and Barden Ridge.