Thresholds vary by municipality, and are commonly around four feet. We check the local requirement for your address before quoting.
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Landscape Design
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Retaining Walls
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Outdoor Living Spaces
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Retaining Walls in Sandwich, Illinois
A retaining wall is a structure, not a decoration. It is holding back soil that becomes much heavier once it is saturated, which is why the parts you cannot see matter most: a compacted leveling pad, a drainage stone core behind the block, filter fabric, drain tile with an outlet, and geogrid reinforcement on taller walls.
We build segmental block walls and natural stone walls, from a low border that levels a planting bed to multi-tier walls that turn an unusable slope into flat, usable yard.
Walls over a certain height require engineering and a permit in most local jurisdictions. We will tell you when that applies and coordinate it rather than building something that will not pass or will not last.
Request an Estimate
What's Included
- Site evaluation, grade and drainage assessment
- Compacted leveling pad and buried base course
- Drainage stone, filter fabric and outletted drain tile
- Geogrid reinforcement on taller or loaded walls
- Segmental block, natural stone and boulder walls
- Caps, steps, corners and integrated planting beds
Retaining Walls Pricing
Starting at $30 per sq ft of wall face in Sandwich and the surrounding Fox Valley communities.
Segmental block wall
Manufactured block, drainage detail includedStarting at $30
per sq ft of faceNatural stone wall
Hand-fit stone faceStarting at $50
per sq ft of faceTypical 30 ft x 3 ft wall
90 sq ft of face with drainage and backfillStarting at $3,200
per projectWalls over 4 ft
Engineered design and permit where requiredQuoted
after site reviewStarting prices are entry points for work in the Sandwich and Fox Valley area, not quotes. Final pricing depends on access, grade, drainage, material choice and the size of the job, and is set after a free on-site visit and measure.
Why It Matters
Water is the real load
Every wall we build is designed to drain. Walls that lean or bulge almost always failed because water had nowhere to go.
More usable yard
Terracing a slope turns wasted grade into lawn, patio or garden space.
Built to be inspected
Where engineering or a permit is required, we handle it instead of hoping nobody notices.
Retaining Walls Photos
Common Questions
How tall can a wall be without engineering?
Why is my existing wall leaning?
Block or natural stone?
Block is more predictable, faster to install and usually less expensive. Natural stone costs more and looks unmatched in the right setting. Both last when built correctly.
Nine times out of ten it is drainage - no stone behind the block, no drain tile, or an outlet that was never installed. That is a rebuild, not a patch.
Free on-site estimate
Ready to start? Let's walk your property.
Call us during business hours or send an email and we will get back to you the same day in most cases.
Call (815) 555-0142 Email Us