Install Retaining Wall Cost in South Carolina (2026)
Average cost in South Carolina: $18 - $72 per square foot
A typical slope retention (100 sq ft) costs $1,800 - $7,200 in South Carolina
How South Carolina Compares
South Carolina is -10% below the national average for install retaining wall.
South Carolina Typical Cost
$1,800 - $7,200
National Average
$2,000 - $8,000
Average labor rate in South Carolina: $38/hour
South Carolina Notes
Charleston expensive; coastal hurricane codes
State sales tax on materials: 6.00%
Calculate Your South Carolina Cost
Your Estimated Cost
$1,800 - $7,200
Based on 100 square foots in South Carolina
Prices updated March 2026
Cost Breakdown
What This Means
For 100 square foots in South Carolina, expect to pay $1,800-$7,200 with mid-range materials that balance quality and cost.
About $2,250 goes to materials and $1,800 covers labor. At $45 per square foot, your project is 10% below the national average.
This is a smaller project that most contractors will complete in a day or two. Many handle this with cash savings or a small personal loan.
Tips for your project:
- •DIY could save you $2,025, but budget extra time and factor in your skill level.
- •A smaller 70 square foot project would run about $3,150.
- •Always get 3 quotes—prices can vary 20-30% between contractors.
What If...
Budget materials
Use builder-grade or economy materials
$1,350 - $5,400
-$1,800 (-40%)
Premium materials
Upgrade to high-end finishes
$2,430 - $9,720
+$360 (8%)
Smaller (75 square foots)
Reduce project scope by 25%
$1,350 - $5,400
-$1,800 (-40%)
Larger (125 square foots)
Expand project scope by 25%
$2,250 - $9,000
+$0 (0%)
DIY installation
Do the work yourself (materials only)
$2,104 - $2,846
-$2,025 (-45%)
What to Ask Your Contractor
1Are you licensed and insured for this type of work?
Are you licensed and insured for this type of work?
Why ask: Protects you from liability if someone gets hurt on your property.
Red flag: Hesitation or claims that insurance "isn't necessary" for this job.
2Can I see references from similar projects?
Can I see references from similar projects?
Why ask: Install Retaining Wall requires specific experience. Past work shows capability.
Red flag: Unable to provide any references or only has very old ones.
3What's included in your $4,500 quote—and what's not?
What's included in your $4,500 quote—and what's not?
Why ask: Prevents surprise charges for permits, disposal, or finishing work.
Red flag: Vague answers or unwillingness to put details in writing.
4Who handles the permit application and inspection scheduling?
Who handles the permit application and inspection scheduling?
Why ask: Permits ensure work meets code and protect your home's resale value.
Red flag: Resistance to pulling permits or suggesting you "don't need one."
5What's the realistic timeline, and what could cause delays?
What's the realistic timeline, and what could cause delays?
Why ask: Honest contractors set expectations. Weather, material backorders, and inspections cause delays.
Red flag: Unrealistically short timelines or guarantees of "no delays."
Retaining Wall in South Carolina FAQs
How much does install retaining wall cost in South Carolina?
Install Retaining Wall in South Carolina costs $18 - $72 per square foot in 2026. For a typical slope retention (100 sq ft), expect to pay $1,800 - $7,200. South Carolina is -10% below the national average.
Do I need a permit for install retaining wall in South Carolina?
Permits may be required depending on scope for install retaining wall in South Carolina. Charleston expensive; coastal hurricane codes. Always check with your local building department before starting work.
What is the average labor rate in South Carolina?
The average skilled trade labor rate in South Carolina is $38/hour in 2026. This is below the national average. Labor typically accounts for 40% of total install retaining wall costs.
Is South Carolina expensive for home improvements?
South Carolina is 10% less expensive than the national average for home improvement projects. Lower labor rates and competitive markets keep costs down.
How do I find a contractor for install retaining wall in South Carolina?
To find a reputable contractor in South Carolina: 1) Get 3+ quotes from licensed contractors, 2) Verify their South Carolina contractor license, 3) Check reviews and references, 4) Confirm insurance coverage, 5) Get a detailed written contract.