Adelaide · Modbury South Australia
Licensed concrete specialists serving Modbury South Australia and surrounding suburbs. BLD 317725 · Free on-site quote within 48 hours.
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.
| Finish | Price (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.
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At Opal SA Construction, we take pride in delivering expert earthworks and concreting services across Adelaide and South Australia. With years of hands-on experience in the earthmoving industry, we have built a strong reputation for providing reliable, high-quality solutions for both residential and commercial projects.
Our skilled professionals manage every stage of the concreting process—from initial excavation to final preparation—ensuring precision, safety, and efficiency at every step.
Our comprehensive earthwork services include:
Digging and Excavation
Removal of Soil, Debris, and Old Concrete
Grading and Final Trim
Base Preparation and Compaction to Specification
At OpalSA Construction, we combine experience with modern equipment to deliver exceptional earthworks results—on time, within budget, and built to last.
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At Opal SA Construction, we take pride in maintaining the highest standards of safety, skill, and professionalism across all our earthworks projects in Adelaide and South Australia. Our operators are fully trained, highly experienced, and continually undergo skill development to stay current with the latest equipment and industry practices.
We strictly adhere to risk assessments, Job Safety Analyses (JSAs), and Work Health and Safety (WHS) standards to ensure a safe and compliant work environment on every project.
Utilizing state-of-the-art, well-maintained machinery—including bobcats, excavators, and a range of specialized attachments—our team delivers efficient, precise, and environmentally responsible earthmoving solutions. We also take an eco-friendly approach to earthworks and waste management, minimizing environmental impact while maximizing performance.
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At Opal SA Construction, we specialize in base preparation and rubble compaction for a wide range of concreting projects across Adelaide and South Australia. Our skilled and experienced team—including professional steel fixers—works precisely from your supplied plans and engineering reports to deliver strong, stable, and long-lasting foundations.
We manage the entire process from start to finish to ensure optimal base preparation. Our comprehensive services include:
Excavation and Trench Digging
Grading and Leveling
Soil Removal and Site Clearing
Concrete Pumping and Pouring
Steel Fixing and Final Finishing
Once the base preparation, steel fixing, and leveling are completed, our team supplies, pumps, places, and finishes the concrete with precision—ensuring a flawless and durable result every time.
Call Javed on 0466 801 058 or fill in the form. Written quote within 48 hours.
We proudly provide our services in the following areas:
Licensed concrete contractors serving Modbury South Australia and surrounding Adelaide suburbs. BLD 317725 · fully insured · free on-site quote within 48 hours.