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Opal Construction LTD — Adelaide Concreting Specialists
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Opal SA Construction Logo

Opal SA Construction is your premier local Adelaide concrete contractor. We specialize in delivering high-quality residential, commercial, and industrial concreting solutions with precision, durability, and trust. Fully insured.

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Monday - Saturday
8am - 5pm

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  • Adelaide, South Australia, Australia
  • +61 466 801 058
  • support@opalsaconstruction.com

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Our Services

  • Concrete Driveways & Crossovers
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Adelaide Service Areas

We service residential & commercial concrete jobs across Adelaide suburbs including:

  • Para Vista South Australia
  • Croydon Park South Australia
  • Munno Para South Australia
  • Angle Vale
  • Salisbury South South Australia
  • Gawler
  • Ingle Farm South
  • Modbury South Australia
View all 14+ suburbs

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ABN91 650 655 360

BLD317725 (Builder License)

🏆 Fully Insured - $20M Public Liability

🏛️ Work Completed to Australian Standards (AS 3600, AS 1379)

⭐ 5.0 Google Rating (Verified Reviews)

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Copyright © 2026 Opal SA Construction Pty Ltd. All rights reserved.

Licensed builder operating in South Australia under BLD 317725.
All concreting and construction work completed to Australian Standards (AS 3600, AS 1379).

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Retaining Walls Adelaide | Opal Construction LTD

Adelaide · Munno Para South Australia

Retaining walls Munno Para South Australia

Licensed concrete specialists serving Munno Para South Australia and surrounding suburbs. BLD 317725 · Free on-site quote within 48 hours.

Call 0466 801 058Free Quote

Munno Para, together with its newer growth areas of Munno Para West and Munno Para Downs, sits approximately 30 kilometres north of Adelaide's CBD in the City of Playford. It is one of metropolitan Adelaide's most rapidly expanding suburban precincts, with large residential land releases drawing young families and first-home buyers away from more established inner suburbs. The landscape is predominantly flat, with wide residential streets, generous block sizes, and significant new infrastructure investment including the Munno Para Town Centre and Gawler Line rail upgrades.

Like all of Adelaide's northern growth corridor, Munno Para sits on highly reactive clay soil. This is the defining constraint for concrete work across the area. Seasonal moisture variation — particularly Adelaide's warm, dry summers followed by wet winters — causes the clay subgrade to expand and contract by as much as 30–50mm in a single year. Without proper base preparation, this movement transmits directly into any concrete surface above. Our standard specification for driveways and slabs in Munno Para includes a minimum 100mm compacted Class 2 roadbase, F72 reinforcement mesh, and control joints cut within the first 24 hours of placement. These aren't optional extras — they are structural requirements for concrete longevity on reactive clay.

The growth estates in Munno Para West — including Penfield Gardens, Andrews Farm, and Davoren Park — generate significant demand for post-build concreting. Builders frequently leave homes without an alfresco slab, rear path, or side path, and new homeowners address these within the first 12 months of moving in. We quote competitively on these secondary concreting jobs and can typically schedule within 2–4 weeks of accepting a quote, given our established presence across the northern suburbs.

All driveway crossover work in Munno Para requires a council permit from the City of Playford. We prepare and lodge this on your behalf. For most standard residential driveways, the permit process adds approximately 10–15 business days before works can commence.

Typical projects in Munno Para include: new concrete driveways on recently completed homes; alfresco slabs and patio areas in exposed aggregate or coloured concrete; concrete paths from front gate to entry; side paths and service yard concrete; and shed slabs on the larger blocks in Munno Para Downs. For a free on-site measure and written quote, call Javed on 0466 801 058.

SA Licence BLD 317725Fully InsuredOwn Trained CrewFree On-Site Quote
FinishPrice (installed)
Plain grey broom$75–$95 / m²
Coloured / oxide concrete$95–$120 / m²
Exposed aggregate$140–$200 / m²

All prices are fully installed and include excavation, compacted roadbase, reinforcement mesh, concrete placement, finishing, control joints, curing compound, and site cleanup. For non-standard sites requiring extra excavation, removal of existing concrete, or heavy compaction work, an additional base preparation charge of $20–$50/m² applies — quoted separately before any work begins.

OPAL SA Retaining Walls

OPAL SA Retaining Walls

We live in a city of hills, sloping blocks and soil that loves to slide after a big winter storm. That’s why Opal SA Construction builds Adelaide retaining walls that hold back earth, channel water and still look like a garden feature not a fortress. From a neat garden edge in Prospect to a two metre wall taming a Marion hillside, we pour concrete, stack stone and add colour so your yard stays put and looks the part. One local crew, one fixed price, one rock solid wall, guaranteed for life.

Installation, Maintenance & Repair

Installation, Maintenance & Repair

Installation

Pick a date and we’ll be there with shovels, laser levels and a playlist you can actually hum along to. We dig, set steel posts, pour the concrete or stack the stone, back-fill with free-draining gravel and shape the wall so it follows your garden’s natural lines. 


Maintenance

Every couple of years we’ll ping you with a quick text: “Ready for a pressure-wash and fresh seal?” Ten minutes with a hose, a stiff broom and our DIY kit keeps moss and salt marks away. Or we’ll swing by while you’re at work, job, no fuss.


Repair

Crack from tree roots, bulge from water build up or chipped cap from the teenager’s skateboard? We cut out the damaged section, match the color and texture, then patch and reseal so the repair disappears and your lifetime warranty stays rock solid.

Why choose Opal SA for your Adelaide retaining wall?

Why choose Opal SA for your Adelaide retaining wall?

  • Designed by locals, built for locals: We turn up in a dusty ute, coffee in hand, and walk your block with you. We check the slope, poke the soil and sketch a wall that sits right, drains right and looks like it grew there.

  • Strong and pretty: Sure, it has to hold back a hill of clay, but it should also frame your roses. We blend steel, concrete and stone.

  • Peace of mind promise: Every block is engineered, every post is steel-reinforced and every pour is signed off by our ticketed crew. If it shifts or leaks, we’re back no arguments, no extra invoices.

Benefits of Choosing Opal SA Concrete Retaining Walls

Benefits of Choosing Opal SA Concrete Retaining Walls

  • Turn steep into useful: A slope that once spilled soil onto the lawn becomes a flat veggie patch, a fire pit deck or extra play space for the kids. We laser-level every footing and add hidden drainage so the new terrace stays level and solid.

  • Stop erosion in its tracks: Adelaide storms can send a hillside sliding. Our walls are built with weep holes and free draining gravel that take the pressure off the soil behind them so your garden (and your neighbor's fence) stays put.

  • Your wall, your style: Plain grey for a clean look, charcoal for a modern edge, exposed aggregate for texture, or stone veneer for rustic charm. The color runs right through the concrete, so chips never show.

  • Low upkeep, long life: No repainting, no replacing rotten sleepers. A quick sweep and hose once a year is all it takes. The sealed surface shrugs off salt, sun and soil movement for decades.

Get a Free Retaining walls Quote in Munno Para South Australia

Call Javed on 0466 801 058 or fill in the form. Written quote within 48 hours.

Call NowOnline Form

Service Areas

We proudly provide our services in the following areas:

  • Para Vista South Australia
  • Croydon Park South Australia
  • Munno Para South Australia
  • Angle Vale
  • Salisbury South South Australia
  • Gawler
  • Ingle Farm South
  • Modbury South Australia
  • Virginia
  • Mansfield Park South Australia
  • Adelaide
  • Rostrevor South Australia
  • Paralowie South Australia
  • Burton South Australia

Opal SA Construction

Licensed concrete contractors serving Munno Para South Australia and surrounding Adelaide suburbs. BLD 317725 · fully insured · free on-site quote within 48 hours.

Service Area: Munno Para South Australia, Adelaide SA

Licence: BLD 317725

Contact : 0466 801 058

Email : support@opalsaconstruction.com

Other Concreting Services in Munno Para South Australia

Driveways & CrossoversProfessional service in Munno Para South AustraliaColorbond FencingProfessional service in Munno Para South AustraliaConcrete PatiosProfessional service in Munno Para South AustraliaEarthworkProfessional service in Munno Para South AustraliaShed & Garage SlabsProfessional service in Munno Para South AustraliaPergolasProfessional service in Munno Para South Australia

Also Serving Nearby Suburbs

Gawler →Elizabeth →Salisbury →Para Hills →All Retaining walls →

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