Our Services
Retention Walls
Structurally engineered walls that solve grade challenges, prevent erosion, and create beautiful terraced outdoor spaces.
What We Offer
Crafted for Your Property
A well-built retention wall does two things: it solves a real structural problem and it creates beautiful usable space. Six12 designs and builds retention walls in natural stone, concrete block, and boulder systems — all engineered for proper drainage and long-term stability on Wisconsin's varied terrain.
What's Included
- Natural stone, concrete block, and boulder options
- Engineered drainage and backfill systems
- Terracing to create flat usable yard areas
- Decorative cap and facing options
- Integration with steps, planters, and seating
- Erosion control and slope stabilization
- Permit-ready structural engineering when required
- Landscape integration and planting plans
How It Works
Our Process
01
Site Evaluation
We assess slope, soil type, drainage patterns, and load requirements to design the right wall system.
02
Engineering
For walls over 4 feet, we provide engineered drawings and handle permit applications.
03
Excavation
Precise excavation, leveling, and base preparation ensure long-term wall stability.
04
Construction
Wall installation with proper batter, drainage aggregate, and geogrid reinforcement as required.
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Ready to Start Your Project?
Every great outdoor space starts with a conversation. Request your free consultation today.