Down Under Retaining

Down Under Retaining Adelaide Structural Retaining Specialists
Retaining Walls | Moss Rocks | Excavation | Sloping Blocks
Prevent Delays & Variations. Maintain Access.

Build it Right From The Start
36+ Years Experience Delivering Reliable Structural Solutions Across Adelaide

Most retaining problems don’t start with the retaining itself.They start when retaining is treated as a late-stage item,...
16/05/2026

Most retaining problems don’t start with the retaining itself.

They start when retaining is treated as a late-stage item, like landscaping, instead of part of the construction strategy from day one.

By the time many projects realise retaining hasn’t been properly planned:
• access is restricted
• slabs are already down
• drainage becomes complicated
• engineering conflicts appear
• machinery access tightens
• variations and delays begin stacking up

At Down Under Retaining, we specialise in structural retaining, excavation and site preparation that integrates cleanly into the build process — not works against it later.

For more than 36 years, we’ve worked across Adelaide delivering:
✔ Structural retaining walls
✔ Moss rock retaining
✔ Excavation & site preparation
✔ Sloping and difficult site solutions
✔ Boundary retaining for new builds & developments

We work closely with builders, developers and homeowners to identify issues early, maintain site access, and keep projects moving the way they should.

Because retaining should never be the reason a build slows down.

📍 Adelaide Metro & Hills
📞 George: 0400 400 450

Stirling: Large moss rock installation.25Lm x 3.5m high in rear yard wrapping around inside boundary to create a useable...
21/04/2023

Stirling: Large moss rock installation.

25Lm x 3.5m high in rear yard wrapping around inside boundary to create a useable space as the natural ground slopes away aggressively.

120 tonne of moss rock brought from front to rear to be installed.

Teringie: Large curved retaining wall.40Lm x 1.6m H - 3m H – curved retaining wall in preparation for new home construct...
21/04/2023

Teringie: Large curved retaining wall.

40Lm x 1.6m H - 3m H – curved retaining wall in preparation for new home construction and driveway.

Upper retaining walls also prior to construction for a single home. All piers drilled into rock.

Completed project: Flagstaff HillAn extensive job, retaining the back of property next to fire track and natural habitat...
14/04/2023

Completed project: Flagstaff Hill

An extensive job, retaining the back of property next to fire track and natural habitat.

Installation included supply and install 1000 tonne of fill, 120 tonne of moss rocks and 27 stone steps to create a 5m high triple-tier wall in preparation to build the new home.

Retaining wall installation: Seacombe HeightsAnother project with extensive earthworks required.Cut and bench into slope...
14/04/2023

Retaining wall installation: Seacombe Heights

Another project with extensive earthworks required.

Cut and bench into slope over 2.5m high, creating double-tier garden bed on the high side allowing useable space on lower level for a swimming pool.

Blakeview: Retaining wall in preparation for new home build.This block had a number of variations in height in relation ...
14/04/2023

Blakeview: Retaining wall in preparation for new home build.

This block had a number of variations in height in relation to the neighbouring properties.

Completed project: O'Sullivan's BeachRetaining walls for a development site, split-levels from one property to another. ...
14/04/2023

Completed project: O'Sullivan's Beach

Retaining walls for a development site, split-levels from one property to another. Galvanised steel used as ocean facing.

Upper Sturt: Large retaining wall and moss rock installationSignificant earthworks were required on this large block in ...
14/04/2023

Upper Sturt: Large retaining wall and moss rock installation

Significant earthworks were required on this large block in Upper Sturt., approximately 1000 tonne.

We cut and bench the side of the hill, creating a 4 level retaining wall, sleeper height was 1.6m.

3 levels of moss rock wall with each level 1.5m high with 1.5m of garden bed between.

Each wall is 70m long, also creating an amphitheatre at one end for the entertaining area.

Completed project: O'Sullivan's BeachA 2.2m high moss rock wall with a water feature in the corner of the rear yard prio...
14/04/2023

Completed project: O'Sullivan's Beach

A 2.2m high moss rock wall with a water feature in the corner of the rear yard prior to development construction.

This butted up against a sleeper retaining wall down the right boundary for access next to the home.

Woodcroft: Retaining wall project.Machine work to the side and rear yard to create more useable space for this home in W...
14/04/2023

Woodcroft: Retaining wall project.

Machine work to the side and rear yard to create more useable space for this home in Woodcroft.

This stylish retaining wall surrounds the rear entertaining area and blends in perfectly with the grey charcoal fence.

Completed Project: EchungaExtensive machine work required to reform and construct a double tier garden area. This create...
14/04/2023

Completed Project: Echunga

Extensive machine work required to reform and construct a double tier garden area.

This created a large area that could be better utilised, overlooking 5 acre property.

The large retaining wall is 1.8m high x 42Lm, including stair returns.

Address

Lonsdale, SA
5160

Opening Hours

Monday 8am - 6pm
Tuesday 8am - 6pm
Wednesday 8am - 6pm
Thursday 8am - 6pm
Friday 8am - 6pm
Saturday 8am - 12pm

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