Retaining Walls Greensborough
Allied Fencing builds retaining walls in Greensborough from sleepers, which are long concrete or timber beams, slotted between steel posts. A retaining wall holds back higher ground, so a sloping yard gets a level strip, a flat lawn or a straight line for a new fence.
On a hilly block near the Plenty River, you might need a wall and a fence on the same boundary, and we can build both in one job. Our installers are insured, and the work carries a 3-year workmanship warranty.
- Concrete or timber sleepers on steel posts
- Drainage pipe and gravel behind the wall
- A new fence on top, built in the same job
Concrete sleepers or timber sleepers?
A sleeper is a long, flat beam, the same shape as the ones under a railway line. Both kinds sit between steel posts, usually H-shaped or C-shaped beams set in concrete.
Concrete sleepers
- Won't rot or attract termites
- Grey finish by default, with textured faces on some ranges
- Heavy, so they sit firmly between the posts
Timber sleepers
- Treated pine or hardwood, rated for contact with soil
- Warmer look that sits well in a garden
- Lighter to handle on tight side paths
- Easy to match a timber fence above
How a sleeper wall goes in
Look at the slope
We check how high the ground sits, where water runs and how we'll get to the spot, then send a written quote.
Dig and set the posts
The line is dug out and the steel posts are concreted in at even spacing.
Slot in the sleepers
Sleepers slide down between the posts one on top of the other until the wall reaches its height.
Drain, fill and fence
Pipe and gravel go in behind the sleepers, the space behind is filled back in with soil, and if you've ordered one, the fence goes on top.
Want a price on retaining walls?
Send the suburb, the job and a rough length, and say if there's a slope or an old fence to remove.
Why drainage behind the wall matters
When soil gets wet, it gets heavy and pushes on the wall. Water trapped behind sleepers is one of the main reasons a wall starts to lean.
So behind the sleepers we lay agricultural pipe, which is a slotted drain pipe, wrapped in geofabric, a cloth that lets water through but keeps the soil out. Gravel goes on top of it. Where the water drains out to is worked out when we measure, and it's written on your quote.
Replacing an old timber wall
Got an old timber wall in Greensborough that's bowing or rotting at the base? We can take it out and build a new one in the same spot, or replace it in sections if only part has gone.
If there's a fence sitting on the old wall, we'll plan the two jobs together so the boundary isn't left open longer than it needs to be.
Do you need a permit for a retaining wall?
Some walls need a building permit and some don't. It depends on things like the wall's height, how close it is to a boundary and what the ground is holding up.
Check your property with your council's building team before the work starts. If a permit or an engineer's design is needed, we build to those drawings.
Retaining walls questions
Five things set the price: the length, the height, the sleeper type, how much digging there is and how we get access. Send us the rough length and suburb for a free written quote.
Yes. We often build the wall and the fence in one job, so the boundary is finished in one go.
That comes down to how much soil there is and how we can get to it. Your written quote says what happens to it, so there's no surprise pile left in the yard.
Get a free quote for retaining walls
Fill in the three short steps and we'll be back to you that day.
- Concrete or timber sleepers on steel posts
- Drainage pipe and gravel behind the wall
- A new fence on top, built in the same job