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.

Opal SA Super-Flat Floors – Adelaide
Welcome to Opal SA Super-Flat Floors Adelaide. As one of the leading concrete specialists in Adelaide, South Australia, we pour super-flat concrete floors that keep forklifts, robots and high-bay racking running smooth. From Beverley warehouses to Lonsdale distribution centres, our laser-guided crews hit FF/FL tolerances tighter than 2 mm over three metres—so your automation never wobbles and your stock never tilts.
We use such methods:
Laser Screed Placement
Specialized Finishing Techniques
Defined Traffic
Floor Construction
Random Traffic
Quality Control and Testing

Across all Adelaide industrial and commercial zones, Opal SA Construction handles super-flat floor installation, maintenance and repair. We laser screed fresh slabs, re level aged floors and reseal joints so the surface stays flat for decades. Spill clean up, crack stitching or full bay replacement one call, one crew, done.

Laser Level Precision: Trimble-guided screeds and robotic total stations hit the exact FF/FL numbers your racking specs demand.
Built for Adelaide: 32–40 MPa concrete mix, fibre reinforcement and marine-grade sealer shrug off heat, salt and forklift traffic.
Zero Surprises Quote: Fixed price contracts from measure to hand over; no hidden extras.
Lifetime Promise: If it cracks or cups, we’re back to re-level on us.
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.