support@opalsaconstruction.com

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Adelaide, South Australia, Australia

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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.

Opening Hours
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
  • Coloured Concrete Finish
  • Swimming Pool Surrounds
  • Concrete Footpaths & Perimeters
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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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Check Our Credentials

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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Shed And Garage Slabs Adelaide | Opal Construction LTD

Adelaide · Modbury South Australia

Shed & Garage Slabs Modbury South Australia

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

Call 0466 801 058Free Quote

Modbury, including Tea Tree Gully North, Modbury Heights, Modbury North, and the surrounding areas, occupies gently hilly terrain in Adelaide's north-eastern suburbs approximately 14 kilometres from the CBD in the City of Tea Tree Gully. It is one of Adelaide's most complete suburban centres, anchored by the Tea Tree Plaza shopping precinct, with good public transport (O-Bahn), medical services, and schools. Homes range from 1960s and 1970s red brick on established lots to more recent dual-occupancy and infill townhouses on subdivided allotments.

The topography across Modbury is more varied than in the flatter northern suburbs. Many streets on the ridgelines and slopes require sloping driveway designs, and drainage planning is important — particularly on blocks that fall toward the house rather than away from it. We always confirm fall direction and drainage exit points as part of the free site measure, and we recommend channel drains in any situation where water could sit against the house footings or garage slab.

Soil conditions in Modbury are generally clay-based, with increasing rock presence toward the hills. On elevated streets near Modbury Heights, subgrade can transition from workable clay to shallow rock within 100–200mm of the surface, which affects excavation cost. We probe for rock as part of the site assessment for these streets and include any additional rock-break cost in the written quote before starting work.

Modbury has a strong renovation market. Homeowners in this area frequently request exposed aggregate driveways as part of modernisation projects on 1960s–1980s brick homes — the textured finish dramatically updates the street presentation of an older home. Coloured concrete in iron oxide red or charcoal is also popular for matching brick tones. Pool surrounds are another significant project type given the prevalence of in-ground pools in Modbury's larger backyard homes.

The City of Tea Tree Gully administers Modbury. Driveway crossover permits are required before any kerb modification. We lodge this application on your behalf. Call Javed on 0466 801 058 for a free measure and written quote within 48 hours.

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.

Shed & Garage Slabs

Shed & Garage Slabs

Need a rock solid base for the new shed, garage or carport? We laser-level every slab so your mower glides in and your tools stay dry. Built with an extra vapor barrier to handle Adelaide’s salty air, our slabs come with a lifetime workmanship promise.

If you’re dreaming of a new shed, garage or workshop, the very first step is a rock solid floor. That’s where we come in. Opal SA Construction is a small, family-run team right here in Adelaide, and we make shed slabs that stay flat, crack-free and look great for years.

We pour three simple types:

• Plain grey – tough, neat and kind on the wallet.

• Exposed aggregate – tiny stones that give a classy, non-slip finish.

• Coloured concrete – pick a shade you love and it runs right through the mix, so chips never show.

From the Adelaide Hills to the coast, we know the local soil and the wild weather, so every slab we lay is ready for scorching summers, heavy storms and whatever you choose to park on top. One friendly crew turns up on the day we promise, cleans up after ourselves and leaves you with a floor you can trust for life.


Installation, Maintenance & Repair:

Installation, Maintenance & Repair:

OPAL SA Construction specializes in concreting shed slabs, providing installation, maintenance, and repair services. We can install a stylish new slab for your home, car park, or workshop, laying the foundation for long-term stability and functionality. We also repair damaged or cracked slabs to restore their beauty and functionality. For proactive protection of your investment, we offer maintenance services, including inspections and sealing, designed to extend your slab's lifespan and prevent issues.

Why Choose OPAL SA Construction for Your Adelaide Shed Slabs & Garage Slabs?

Why Choose OPAL SA Construction for Your Adelaide Shed Slabs & Garage Slabs?

  1. Concrete Foundation: With lots of knowledge and experience, our team specializes in concreting shed slab design, installation, maintenance, and repair. We know the techniques and requirements for strong and durable shed and garage slabs.

  2. Durability and Strength: According to the tough South Australian weather conditions, we can build and design shed slabs that can withstand rain, heat, storms, etc., and remain functional after many years with the same aesthetics and functionality.

  3. Quality and Designs: With high-quality materials, we design shed slabs for all areas of Adelaide, whether it's a car park, workshop, or more. With unique and aesthetically pleasing designs, we ensure the shed's functionality and quality.

  4. Affordable Cost: We offer services in all areas of Adelaide at an affordable cost, which isn't overly expensive. The quality, type of material, longevity, and low maintenance don't affect the cost of your concrete. We offer flexible cost solutions for your concreting needs.

  5. Local know-how: We live here, so we know Adelaide clay and council quirks.

  6. • Premium SA concrete: 32 MPa strength, built for heavy tools and coastal air .

  7. • Fixed-price quotes: The number we say is the number you pay.

  8. • Lifetime workmanship warranty: If it shifts or cracks, we’re back with a mixer and a smile.

Benefits of Choosing OPAL SA Construction for Shed Slabs and Garage Slabs:

Benefits of Choosing OPAL SA Construction for Shed Slabs and Garage Slabs:

  1. Moisture Shield: Built-in vapour barrier keeps ground water out and stored items dry .

  2. Perfect Level: Laser-levelled within 2 mm so doors glide and shelves stay upright.

  3. Heavy Load Ready: Engineered for ride-on mowers, utes and even car hoists.

  4. Budget Friendly: Local stone, local crew, fair price.

    1. Low Maintenance: OPAL SA concrete shed slabs require minimal upkeep to maintain, compared to other concreting materials.

    2. Finish touch: We offer concrete shed slabs with various finishing touches, including plain gray concrete, exposed aggregate concrete, and colored concrete, in any style and shape.

Get a Free Shed & Garage Slabs Quote in Modbury 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 Modbury South Australia and surrounding Adelaide suburbs. BLD 317725 · fully insured · free on-site quote within 48 hours.

Service Area: Modbury South Australia, Adelaide SA

Licence: BLD 317725

Contact : 0466 801 058

Email : support@opalsaconstruction.com

Other Concreting Services in Modbury South Australia

Driveways & CrossoversProfessional service in Modbury South AustraliaColorbond FencingProfessional service in Modbury South AustraliaConcrete PatiosProfessional service in Modbury South AustraliaEarthworkProfessional service in Modbury South AustraliaPergolasProfessional service in Modbury South AustraliaFootpaths and PerimetersProfessional service in Modbury South Australia

Also Serving Nearby Suburbs

Para Hills →Golden Grove →Tea Tree Gully →Campbelltown →All Shed & Garage Slabs →

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