When you need mass, not a pretty stack
Armour stone and boulder walls are for real grade. A driveway cut into a bank. An acreage slope that keeps sliding. A building pad that needs a shoulder. The wall works because each rock is heavy and it's leaned back into the hill, not because someone glued a face on.
This is the look people want on treed Brookswood and Aldergrove lots, and on the steeper Maple Ridge hillsides. It reads as part of the land. A crisp block wall can look wrong in those places.
How a boulder wall is set
We size the stone to the height and the load. Then we excavate a keyed base so the bottom course can't kick out. Each boulder is placed by machine, seated, and battered back. Chinking fills the gaps so soil doesn't pipe through.
Drainage still matters. Big rock doesn't magically ignore water. We put free-draining fill and fabric behind the wall and give the water a path out. Skip that and even a 2-tonne stone will start to roll forward after enough wet winters.
Access, machines, and tight lots
Boulder work needs room for equipment. If we can get a machine to the bank, the job is efficient. If the only path is a 3-foot side yard, we talk about smaller stone, a different system, or extra labour to stage material. We'll tell you that on the first visit, not halfway through.
On new-build lots with open access, armour stone goes up faster than people expect. On older hillside homes, the planning is the job.
Boulders vs interlocking block
Block is neater. Boulders are tougher to look at and tougher to move. For a rural bank, rock often wins on both looks and lifespan. For a tight modern backyard, block or poured concrete usually wins. Forge Langley Retaining Wall Contractors builds both, so the quote isn't a sales pitch for one product.

What's included
- Site and grade assessment
- Excavation and compacted base
- Large armour stone or natural boulders, placed by machine
- Proper batter (backward lean) for stability
- Drainage and free-draining backfill
- Filter fabric behind the wall
- Grade restoration and cleanup
When you need boulder & rock walls
A driveway or access bank
Rural driveways cut into a slope wash out without a wall. Rock holds the bank for good.
Big grade changes
Acreage-scale slopes need mass. Boulder walls bring it.
A rugged, natural look
On a treed or rural property, natural rock looks right in a way block never will.
Our process
- 1
Assess the load
We figure out how much grade you're holding and size the stone to match.
- 2
Prep the base
Excavate and compact a keyed-in base so the bottom course doesn't kick out.
- 3
Set the stone
Each boulder is placed and seated by machine, leaned back into the hill, and chinked tight.
- 4
Backfill and drain
Free-draining rock and fabric go in behind, then we restore the grade.
Why choose Forge Langley Retaining Wall Contractors for this
- Equipment and experience to move heavy stone safely
- Proper batter and keying so the wall actually holds
- Drainage built in, not an afterthought
- Looks like it belongs on a Fraser Valley property
Where we build
We build boulder & rock walls across Langley and the Fraser Valley.
See all areas we serve