IronJaw Clearing builds retaining walls that hold back soil, stop erosion, and create flat usable space on sloped properties throughout Summerville, Charleston, and the Lowcountry. Timber, block, and boulder walls — each with integrated drainage. $3,000–$15,000 with a free on-site assessment.
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Retaining wall construction builds structural walls that hold back soil on sloped or tiered properties — preventing erosion, creating flat usable space, and stabilizing terrain that would otherwise continue to slide and wash. IronJaw Clearing constructs retaining walls for residential landowners dealing with sloped yards, properties adjacent to drainage channels, and sites where grading has created slope conditions requiring structural support.
We install timber, block, and boulder retaining walls depending on application and load requirements. Every wall includes proper drainage behind it — a retaining wall without a drainage system fails eventually. We include drainage aggregate and perforated pipe behind all retaining walls we build. Drainage isn't an add-on. It's standard practice on every IronJaw retaining wall installation.
Get a Free On-Site Estimate →Drainage-integrated · timber, block, and boulder walls
Most retaining walls fail because of inadequate drainage — not poor materials or workmanship. IronJaw builds drainage into every wall as a non-negotiable standard. That's why our walls last decades instead of years.
A properly drained retaining wall eliminates the ongoing soil loss that costs you topsoil and property after every storm.
A tiered yard with retaining walls is more functional and worth more than an unusable sloped hillside. Add real square footage to your property.
Every wall includes perforated pipe and drainage aggregate behind it. Drainage failure is the #1 cause of retaining wall failure — we eliminate it by design.
Treated timber retaining walls for residential slopes, garden terraces, and yard areas up to 3 feet high.
Concrete block and modular retaining block walls for residential and light commercial applications 3–6 feet high.
Natural boulder walls for aesthetic appeal, heavy-duty structural retention, and properties requiring visual character.
Elevated driveway retaining structures for lots where the driveway approach crosses a grade change.
Perforated drain pipe and drainage aggregate installed behind every wall — the standard that prevents failure.
Multi-level retaining structures that create flat, usable yard terraces from steep or sloped residential lots.
Call (854) 300-4979Assess slope, soil conditions, load requirements, and aesthetic preferences. Determine wall type, height, and drainage system.
Footing trench excavated to proper depth. Base course material placed and leveled for a stable foundation.
Courses built with proper batter (backward lean), tie-backs, and deadmen for structural integrity. No shortcuts on the structure.
Perforated drain pipe and drainage stone installed behind the wall before any backfill. Backfill placed and compacted in lifts.
Sloped yards, eroding embankments, driveway approach walls, and terrace creation — reclaim the sloped portions of your property.
Site retaining walls for graded residential lots and commercial sites where construction has created slope conditions.
Slope stabilization on rural properties, pond bank retention, and terrace construction for agricultural use.
Timber wall to 3ft height: $3,000–$6,000. Block wall 3–5ft: $5,000–$10,000. Large boulder wall: $8,000–$15,000+. Includes excavation, foundation, wall construction, drainage system, and backfill.
IronJaw walks every retaining wall site before quoting — slope assessment, soil conditions, drainage design, and material recommendation all done in person.
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How Much Does Retaining Wall Construction Cost in SC? (2025 Pricing Guide)
IronJaw Clearing provides retaining wall construction services throughout the Lowcountry of South Carolina — from Summerville and Charleston to the rural communities of Dorchester, Berkeley, and Charleston counties. Below are the cities we serve most frequently. Don't see yours? Call — if we can reach you, we'll quote you.
"IronJaw prepped our homesite from raw land to a compacted pad in under a week. Owner walked the lot with us before quoting — knew exactly what the builder needed. Couldn't have asked for better."
"They installed a culvert on our driveway crossing and regraded the whole approach. Water finally goes where it's supposed to. Should have done it years ago. Professional crew."
"IronJaw built a retaining wall along the back of our property. They included drainage behind the wall without being asked — said it's what prevents failures. Wall looks great, no water issues after two big rains."
What homeowners and property owners ask before having a retaining wall built in the Lowcountry.
Call (854) 300-4979$3,000–$15,000 per wall depending on material, height, and linear footage. Timber walls to 3 feet: $3,000–$6,000. Concrete block walls 3–5 feet: $5,000–$10,000. Boulder walls: $8,000–$15,000+. Drainage system and backfill are included in every quote.
Timber: lower cost, natural look, best for walls under 3 feet. Block: best for 3–6 foot walls where a clean, finished look is needed. Boulder: best for heavy-duty applications, natural aesthetics, and walls that need structural mass. IronJaw recommends based on your specific site after the assessment.
Walls over 4 feet typically require a building permit from your municipality. HOA approval may be required for any height. Contact your local building department or HOA before starting — IronJaw can advise on your specific situation.
Treated timber walls: 15–25 years with proper drainage. Concrete block walls with drainage: 30–50+ years. Boulder walls: essentially indefinite if properly built with drainage. Drainage is the key to lifespan — a wall without it fails in 5–10 years regardless of material.
Water is the villain in 90% of retaining wall failures. Hydrostatic pressure builds up behind a wall without drainage, and eventually the water pressure exceeds the wall's structural capacity. IronJaw includes perforated drain pipe and drainage stone behind every wall we build — it's not optional.
Yes, but steep slopes and drainage channel proximity require careful assessment of soil pressure and water load. We walk every site before committing to a scope and design. Some situations require engineered drawings — we'll tell you upfront if yours is one of them.
Free on-site estimate. The owner walks every property before we quote. Summerville, Charleston, and all of the Lowcountry.