Mandurah Concrete Retaining Walls
Concrete retaining walls in Mandurah with drainage detailed behind them and footings sized for the load. Engineered where the height requires it.
Concrete Retaining Walls Mandurah
Retaining walls fail from water, not weight. Sand and fill behind a wall hold water after rain, that water has nowhere to go, and the pressure it adds is what pushes walls over — which is why drainage behind a wall matters as much as the wall itself. Height also changes the rules: past a certain point a wall needs engineering and council approval, and that threshold catches people out. We build the concrete retaining walls Mandurah blocks need, with ag drain and free-draining backfill behind them, and we tell you when your wall needs an engineer.
- Drainage behind every wall — Ag drain and free-draining backfill, because water pressure is what topples walls
- Footings sized to the load — Footing width and reinforcement set for the retained height and the soil
- Engineering where required — We tell you when height or surcharge means an engineer and council approval
- Terracing on sloped blocks — Two lower walls often beat one tall one, structurally and on cost
- Finishes to match — Off-form, rendered or faced to tie in with the house and landscaping
Get a quote for retaining walls
Tell us about the job and we'll come back with a written price within one business day.
Mandurah Concrete Retaining Wall Services
Walls that hold ground on sandy and sloping blocks, with the drainage they need behind them.
Low garden retaining
Short walls holding terraces and beds, with drainage behind them even at low heights.
Engineered retaining walls
Taller walls built to an engineer design where the retained height and surcharge require it.
Terraced retaining
Multiple lower walls stepping down a slope, often cheaper and stronger than one tall wall.
Boundary retaining
Walls on or near a boundary, with neighbour and council considerations worked out before we start.
Estuary & canal-edge retaining
Low retaining on water-front blocks, built for constant moisture and tidal influence.
Retaining wall repair
Leaning, cracked or failing walls assessed — usually a drainage failure — and rebuilt or repaired.
Mandurah Concrete Retaining Wall Process
Height and drainage are settled first, because both decide whether this is a simple job or an engineered one. Above certain heights, or close to a boundary, a wall needs engineering and council approval, and we tell you which side of that line your job sits on before quoting rather than after. The soil behind the wall matters as much as the wall itself — what it weighs when it is saturated is the real load being held. Footings are excavated and set out, the wall and its reinforcement are built to the design, then drainage and backfill go in the right order.
Height, Soil & Approval Check
We measure the retained height, check the soil and surcharge, and tell you whether an engineer and council approval are needed.
Footing Excavation & Set-out
Wall set out to the line agreed, then footings excavated to the depth and width the design calls for.
Footing, Wall & Reinforcement
Footing poured, then the wall built or poured with reinforcement as designed and starter bars tied in correctly.
Drainage, Backfill & Handover
Ag drain laid and free-draining backfill placed behind the wall, then finished and walked through with you.
Why Choose Our Retaining Wall Experts in Mandurah
Almost every failed wall we are called to had no working drainage behind it. That is the whole story.
Drainage is never optional
Ag drain and free-draining backfill on every wall, including the low ones. It is the cheapest part and the one that matters.
Straight about engineering
When height or surcharge means an engineer and approval, we say so rather than quietly building it undersized.
Footings sized for the job
Footing width and steel set for the retained height and what is behind it, not a standard detail.
Boundary issues raised early
Neighbour and council considerations on boundary walls flagged before work starts, not mid-build.
Terracing offered honestly
Where two lower walls are better than one tall one, we tell you — even when it is the smaller job.
7 year workmanship guarantee
If a workmanship fault shows up within seven years, we come back and fix it at our cost.