Trusted local concrete specialists serving Adelaide homes. Driveways, slabs, patios & paths with licensed expertise and transparent pricing.
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A correctly engineered slab is the foundation of any successful build. Opal Construction LTD (BLD 317725) designs and pours every residential slab to AS 2870 — accounting for Adelaide's reactive clay soils, seasonal moisture movement, and design loads before a single cube is ordered.
Standard residential slabs are 100 mm thick, reinforced with SL72 or SL82 steel mesh, and poured with 25–32 MPa concrete. Thickened-edge beams, internal stiffening beams, and trench mesh footings are included where AS 2870 soil classification demands them.
| Application | Thickness | Concrete Grade | Indicative Cost |
|---|---|---|---|
| House Extension / Dwelling Footing | 100 mm + thickened edges | 32 MPa | $110–$160 / m² |
| Shed Slab (residential) | 100 mm | 25 MPa | $75–$110 / m² |
| Garage / Carport Floor | 100–125 mm | 32 MPa | $85–$130 / m² |
| Structural Footings | 300–450 mm deep | 32–40 MPa | Quoted on assessment |
Reliability, precision engineering, and a commitment to longevity. Here is what separates our workmanship from the rest.
"Our reputation is built on concrete that doesn't just look good today, but performs for decades."
— Project Director
We're not just another concreting company – we're Adelaide locals who've worked across every suburb from the Adelaide Hills to coastal areas. This means we understand:
This local knowledge translates to better installations, fewer problems, and concrete that performs reliably for 20-30+ years in South Australian conditions.
We don't just pour concrete – we engineer solutions:
Every residential project follows Australian Standards and local building codes. Our precision approach ensures structural integrity that lasts a lifetime.
Our detailed quotes include everything you need:
What you see is what you pay. If site conditions reveal genuine unforeseen issues, we discuss options and costs before proceeding – never after. We itemize our quotes clearly so you understand exactly where your investment goes.
Your time matters. That's why we:
You'll know exactly when work starts, what to expect daily, and when you can use your new concrete.
We use only premium materials designed for South Australian conditions:
Better materials + better installation = concrete that performs year after year.
Explore our categorized knowledge base to find detailed answers about residential concreting in Adelaide.
Partner with South Australia's trusted residential concreting experts. We deliver engineered precision, transparent pricing, and results built to last.
Complete peace of mind with comprehensive coverage (BLD 317725)
Local expertise tailored to Adelaide conditions
Transparent pricing with no hidden surprises