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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
  • Concrete Patios & Entertaining
  • Exposed Aggregate Concrete
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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 · Angle Vale

Retaining walls Angle Vale

Licensed concrete specialists serving Angle Vale and surrounding suburbs. BLD 317725 · Free on-site quote within 48 hours.

Call 0466 801 058Free Quote

Angle Vale is one of Adelaide's fastest-growing residential corridors, spreading across the flat plains approximately 30 kilometres north of the CBD between Gawler and Munno Para. What was paddock land a decade ago is now a patchwork of new housing estates — Seasons, Almond Grove, Springbank Rise — with hundreds of new homes completing each year. That pace of development makes Angle Vale one of the highest-demand suburbs for concreting work anywhere in Adelaide's north.

The dominant soil type across Angle Vale is a heavy red-brown clay that shrinks and swells significantly with seasonal moisture changes. It is classified as a highly reactive (H) or extremely reactive (E) site class under AS 2870, which means slabs and flatwork must be engineered to handle substantial ground movement. For driveways, we lay a minimum 100mm compacted Class 2 roadbase before the concrete, use F72 reinforcement mesh as standard, and cut control joints on a maximum 3-metre grid. This is not optional on reactive clay — it's the difference between a 20-year driveway and a cracked mess within five years.

Most blocks in Angle Vale's new estates are 350–500m² with a 6-metre frontage and double garage. A standard double-width driveway here runs approximately 42–50m² from the crossover to the garage door. At current 2026 rates, expect $3,150–$4,750 for a plain broom-finish driveway or $5,880–$10,000 for exposed aggregate, fully installed including all base preparation. Prices quoted in writing before any work begins.

The Town of Playford administers Angle Vale. All new driveway crossovers require a development application through Council before construction. We prepare and submit this application on your behalf as part of the full driveway package — most residential crossover applications are straightforward and approved within 10–15 business days.

Beyond driveways, Angle Vale homeowners frequently request alfresco and patio areas in exposed aggregate or coloured oxide to match estate guidelines, concrete paths from the gate to the front door, and rear slabs for garages or workshop sheds. We also pour machine footings for garden sheds and pergolas across the area. Our crew works across all active estates in Angle Vale and can coordinate pour timing around other trades on your new build. Contact us on 0466 801 058 for a free site measure and written quote.

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 Angle Vale

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 Angle Vale and surrounding Adelaide suburbs. BLD 317725 · fully insured · free on-site quote within 48 hours.

Service Area: Angle Vale, Adelaide SA

Licence: BLD 317725

Contact : 0466 801 058

Email : support@opalsaconstruction.com

Other Concreting Services in Angle Vale

Driveways & CrossoversProfessional service in Angle ValeColorbond FencingProfessional service in Angle ValeConcrete PatiosProfessional service in Angle ValeEarthworkProfessional service in Angle ValeShed & Garage SlabsProfessional service in Angle ValePergolasProfessional service in Angle Vale

Also Serving Nearby Suburbs

Gawler →Virginia →Elizabeth →Salisbury →All Retaining walls →

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