
What we build · 03
Retaining walls
up to 1m high.
Concrete sleeper and timber retaining walls up to 1m high — roughly 5 sleepers — built to hold a slope back properly. Ideal on sloping Logan and Gold Coast blocks, and often built with a new fence straight on top.
5 ★ Google rating
$10M public liability insurance
ABN 91 937 439 041
Own crew, no subcontractors
We build up to 1m high
Our retaining walls go up to 1m high — approximately 5 sleepers. That covers the vast majority of residential level changes: a fall across the backyard, a cut for a shed or pool pad, a step down to a driveway, or levelling a boundary before a new fence goes on. If your site needs more height than that, we'll tell you straight up so you can get an engineered solution instead of a wall that isn't right for the job.
Concrete sleeper or timber
Concrete sleepers set into galvanised or powder-coated steel posts are the go-to — no rot, no termites, and a clean modern face. Treated timber sleepers cost less and suit a softer garden look. Either way the wall gets proper drainage: agi line, gravel backfill, and somewhere for water to actually go.
Wall and fence in one job
Most of our wall jobs finish with a Colorbond or timber fence sitting straight on top. Doing both together means one crew, one price, one visit — and the fence line ends up level instead of chasing the old ground.
Maximum height
1m (approx 5 sleepers)
Materials
Concrete sleepers or treated timber
Posts
Galvanised steel, concreted in
Drainage
Agi line and gravel backfill included
What's included
- Site measure, levels checked, free written quote
- Excavation and setting out
- Steel posts concreted, sleepers set
- Agi drainage line and gravel backfill
- New fence installed on top if you want it
Same day quotes
Get a price for retaining walls
Good to know
Retaining walls questions, answered straight.
What is the 1m height limit about?
We specialise in retaining walls up to 1m high (approximately 5 sleepers). Walls above this height require engineering design and are outside our scope.
Do I need council approval for a retaining wall?
Retaining walls under 1m in height typically do not require approval. Requirements can vary depending on overlays such as flood, landslide or heritage. We can advise based on your property.
How much does a retaining wall cost?
Pricing depends on wall length, height, material, ground conditions and access. We provide tailored pricing once your project has been assessed.
What types of retaining walls do you build?
Concrete sleeper walls, treated pine sleeper walls and hardwood timber walls. Concrete sleepers are often preferred for their durability and low maintenance.
Can you install a fence on top of a retaining wall?
We assess each project as a whole. In most cases the retaining wall and fence need to be installed together to ensure stability and long-term performance.
Will the wall be perfectly level all the way through?
Walls are set out based on site conditions and design requirements. In many cases stepped sections are required rather than one continuous level wall.
Do you handle drainage?
We recommend appropriate drainage to support the performance and longevity of the wall. Requirements vary depending on the site and project.
Who is responsible for underground services?
Known underground services should be identified before works start. We recommend contacting Before You Dig Australia (BYDA) so nothing is hit during excavation.
Also from Zenline

Colorbond fencing
Durable, low-maintenance steel fencing supplied and installed in the full COLORBOND® colour range. Old fence removal included in your quote.
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Timber fencing
Hardwood and treated pine palings, standard or lapped and capped. Straight posts, tight boards, and a finish that still looks right years in.
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Gates & repairs
Single, double and sliding gates hung square so they latch first time. Broken palings, sagging gates and snapped posts sorted fast.
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