Concreting in SA
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About Concreting in South Australia
Concreting covers slabs, driveways, paths, retaining walls, footings, exposed aggregate finishes, decorative concrete, and polished concrete. South Australia's reactive clay soils make foundation and slab work particularly important — get it wrong and you get cracking, heaving, and sloping floors that cost a fortune to fix.
Common concreting jobs in SA homes:
- Driveway installation and replacement
- Concrete paths and walkways
- Shed and garage slabs
- Pergola post footings
- Stamped or exposed aggregate driveways
- Concrete retaining walls
- Pool surround concreting
- Patio and outdoor area slabs
- Crack repair and resealing
- Polished concrete floors
- Foundation repair (specialist work)
What it usually costs: Plain concrete driveway $80–$120 per sqm supplied, poured, and finished. Exposed aggregate driveway $130–$200 per sqm (premium look, hides stains). Stamped concrete $140–$220 per sqm. Shed slab (6m x 3m, 100mm thick) $1,200–$2,200. Polished concrete floors $80–$160 per sqm.
Hiring tips: Drainage and base prep are everything. Cheap concrete jobs in Adelaide fail because of inadequate base preparation, not the concrete itself. Ask about: base depth (100mm of compacted road base minimum), reinforcement (steel mesh or fibre), expansion joints, and curing protection (concrete needs to cure slowly to be strong). Get the concrete strength specified on the quote (typically 25 MPa for residential, 32 MPa for vehicle traffic). For driveways carrying heavier vehicles, structural engineering may be needed.