Concrete Retaining Walls
Hold the hill back. Gain usable yard.
Sloping blocks are common across the Gold Coast hinterland and canal estates. We build reinforced block and concrete retaining walls with proper footings and drainage, turning steep ground into flat, usable space that stays put.
Often chosen with concrete foundations & footings, excavation & site preparation, concrete steps.
Typical job: 1–2 weeks · Site measure: free
What’s included
- Engineering coordination for walls over 1 m
- Excavation and reinforced footings
- Core-filled block or formed concrete
- Ag-line drainage and gravel backfill
- Render or capping options
Finish options
- Core-filled block — Reinforced besser block with concrete-filled cores.
- Formed concrete — Off-form walls for a modern architectural look.
- Sleeper walls — Concrete sleepers with galvanised posts for budget walls.
Specification
| Footing | Reinforced strip per engineering |
|---|---|
| Drainage | 100 mm ag-line + gravel |
| Engineering | Required over 1 m high |
| Finish | Bagged, rendered or off-form |
What affects the price
Every job is priced after a free site measure. Your fixed, itemised written quote shows each of these:
- Wall height, length and engineering
- Block, formed concrete or sleeper system
- Drainage, ag pipe and backfill
- Excavation and machine access
Concrete Retaining Walls questions, answered
Does my retaining wall need approval?
Walls over 1 m high, or close to boundaries and structures, typically need engineering and approval. We’ll advise and work with your engineer.
Why is drainage so important?
Water pressure behind a wall is the main cause of failure. Ag-line drainage and free-draining backfill let water escape before it builds up.
What height can I build without an engineer?
In Queensland, retaining walls over 1 m high, or close to a boundary or building, usually need engineering and approval. We check your wall height and location at the site measure and tell you which applies.
Which wall type suits a sloping Gold Coast block?
Core-filled concrete block is the most common for permanent walls. Formed concrete suits curved or architectural walls. Concrete sleepers with steel posts are quick for low walls.
Can a retaining wall be rendered or painted?
Yes. Core-filled block walls are often rendered, or bagged and painted, to match the house. We leave the face ready for your renderer or painter.
Get a fixed written quote
Call 0404 859 045 or request a free site measure.
