Concrete Patios
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Custom Concrete Patio & Alfresco Installation in Adelaide
Adelaide's outdoor lifestyle demands a patio that can handle decades of summer entertaining, pool splashback, and UV exposure without cracking, fading, or lifting. Opal SA Construction (BLD 317725) installs concrete patios, alfresco areas, and pool surrounds across all Adelaide metro suburbs — poured at 100 mm thick, reinforced with SL72 steel mesh, and set to AS 3500.3 drainage fall requirements.
Every patio is graded at a minimum 1:100 fall away from the building. We use 25 MPa concrete for standard entertaining areas and 32 MPa for pool surrounds and spa pads. Penetrating acrylic sealer is applied on the day of pour on exposed aggregate and coloured finishes to protect against Adelaide's intense UV and maximise colour retention.
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Premium Finishes: Exposed Aggregate, Coloured, & Stencilled Concrete
Exposed aggregate is the most requested patio finish across Adelaide. The natural stone surface achieves an R10–R11 slip resistance rating when wet — the minimum required by AS 1428.1 for areas adjacent to pools and wet zones. The aggregate texture also keeps surface temperatures cooler underfoot on hot summer days.
We also offer coloured oxide concrete, where pigments are integrated directly into the mix, and stencilled concrete patterns (Ashlar slate, European fan, cobblestone) to replicate high-end paving at a lower cost without individual pavers shifting on reactive clay.
FAQs About Our Concrete Patios
Concrete patios in Adelaide cost $75–$200 per m² installed depending on finish and size. Plain broom finish: $75–$90/m². Coloured/oxide concrete: $95–$120/m². Exposed aggregate: $140–$200/m². A 40 m² alfresco area typically costs $3,000–$8,000 all-inclusive.