Install Retaining Wall Cost in Missouri (2026)
Average cost in Missouri: $18 - $74 per square foot
A typical slope retention (100 sq ft) costs $1,840 - $7,360 in Missouri
How Missouri Compares
Missouri is -8% below the national average for install retaining wall.
Missouri Typical Cost
$1,840 - $7,360
National Average
$2,000 - $8,000
Average labor rate in Missouri: $40/hour
Missouri Notes
St. Louis and KC metros higher; varies by municipality
State sales tax on materials: 4.23%
Calculate Your Missouri Cost
Your Estimated Cost
$1,840 - $7,360
Based on 100 square foots in Missouri
Prices updated March 2026
Cost Breakdown
What This Means
For 100 square foots in Missouri, expect to pay $1,840-$7,360 with mid-range materials that balance quality and cost.
About $2,300 goes to materials and $1,840 covers labor. At $46 per square foot, your project is 8% 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 $2,070, but budget extra time and factor in your skill level.
- •A smaller 70 square foot project would run about $3,220.
- •Always get 3 quotes—prices can vary 20-30% between contractors.
What If...
Budget materials
Use builder-grade or economy materials
$1,380 - $5,520
-$1,840 (-40%)
Premium materials
Upgrade to high-end finishes
$2,484 - $9,936
+$368 (8%)
Smaller (75 square foots)
Reduce project scope by 25%
$1,380 - $5,520
-$1,840 (-40%)
Larger (125 square foots)
Expand project scope by 25%
$2,300 - $9,200
+$0 (0%)
DIY installation
Do the work yourself (materials only)
$2,151 - $2,910
-$2,070 (-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 $4,600 quote—and what's not?
What's included in your $4,600 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 Cost by City in Missouri
| City | Cost Range (per square foot) | vs. National |
|---|---|---|
| Kansas City | $19 - $76 | -5% |
Retaining Wall in Missouri FAQs
How much does install retaining wall cost in Missouri?
Install Retaining Wall in Missouri costs $18 - $74 per square foot in 2026. For a typical slope retention (100 sq ft), expect to pay $1,840 - $7,360. Missouri is -8% below the national average.
Do I need a permit for install retaining wall in Missouri?
Permits may be required depending on scope for install retaining wall in Missouri. St. Louis and KC metros higher; varies by municipality. Always check with your local building department before starting work.
What is the average labor rate in Missouri?
The average skilled trade labor rate in Missouri is $40/hour in 2026. This is near the national average. Labor typically accounts for 40% of total install retaining wall costs.
Is Missouri expensive for home improvements?
Missouri is 8% less expensive than the national average for home improvement projects. Costs are moderate compared to other states.
How do I find a contractor for install retaining wall in Missouri?
To find a reputable contractor in Missouri: 1) Get 3+ quotes from licensed contractors, 2) Verify their Missouri contractor license, 3) Check reviews and references, 4) Confirm insurance coverage, 5) Get a detailed written contract.