CivilCommercialDefenceResidential
Retaining walls that get certified.
Crib block, Keystone, Keymass, gabion and precast systems, designed, supplied and built by our own crews across Sydney and NSW since 1977.
Keymass wallMachine-placed precast
Head contractors and developers we have built forJohn HollandRichard Crookes ConstructionsStocklandHansen YunckenADCO ConstructionsGoodmanFDC Construction & FitoutAustralandARTCWatpac
Ten wall systems. One contractor.
We do not sell one system. We recommend the wall the ground, the height and the finish call for, then design, supply, build and certify it.

Crib block
Cut and fill batters on civil and subdivision work

Keystone
Residential subdivisions and estates

Keymass
Industrial hardstands and yards

Gabions
Creek and channel banks

Concrete sleeper
Property boundaries and side setbacks

Allan Block
Residential and landscape walls

RSS precast
Civil and infrastructure retaining
1977Founded by Nick Bouhoutsos. Second generation today.
4,800 m²Largest single wall on the project list, Erskine Park.
2Defence establishments carrying our walls.
10Wall systems designed, supplied and built.
Built for the sector, not just the site.
Civil and infrastructure
3 documented projects
The sector the company grew up in.
Commercial and industrial
7 documented projects
Distribution centres at Eastern Creek and Erskine Park, a rehabilitation hospital at Ryde, a fit-out contractor's own facility at Warriewood, a grammar school at Dee Why.
Defence estate
2 documented projects
Two of our larger walls stand on Defence estates: 1,600 square metres at HMAS Harman in Canberra for John Holland, and 1,600 square metres at Blamey Barracks, the Army Recruit Training Centre at Kapooka, for Richard Crookes Constructions.
Residential estates and homes
4 documented projects
Staged estate walls for Stockland at Glenmore Ridge and Lakewood, low walls around social housing at Macquarie Fields, Narwee and Blackett for Watpac, and a charcoal Keystone wall at Prestons for Burton Contractors.
4,000 square metres beside a live freight line.
Outside Sefton station on the Southern Sydney Freight Line, we combined Keystone and crib block walls along the corridor for ARTC, programmed to rail possessions and certified stage by stage.
CSR facility, Erskine Park
TRN Group · 4,800 m²
Erskine Park is one of western Sydney's major industrial estates.
HMAS Harman, Canberra
John Holland · 1,600 m²
HMAS Harman is a Royal Australian Navy establishment on the outskirts of Canberra.
Stockland Glenmore Ridge
Burton Contractors · 2,200 m²
Glenmore Ridge is a Stockland residential estate at Glenmore Park, below the Blue Mountains.
Royal Rehabilitation Centre, Ryde
ADCO Constructions · 1,200 m²
The Royal Rehabilitation Centre at Ryde is a specialist health campus.
How a wall gets from drawing to certificate.
Design
From the ground up
We price from the drawings and the geotechnical report, recommend a system, and design the section, drainage and reinforcement for the site and the surcharge.
Build
Our own crews and plant
Supply, base preparation, placement and backfill by the people who do it every day, with an excavator and block grab where the site allows machine placement.
Certify
Inspected as it rises
Hold points recorded, materials certified, and the engineer's certificate handed over with the wall, so nothing is chased afterwards.
Read before you specify.
Plain answers to the questions engineers, project managers and owners ask before a wall is priced.