Modern terraced concrete retaining wall with elegant landscaping in Lee's Summit, MO — residential slope and drainage solution

Concrete Retaining Walls in Lee's Summit, MO

LS Concrete Contractors builds concrete retaining walls for residential properties in Lee's Summit and the Kansas City metro. A retaining wall on Lee's Summit clay soil is only as good as its drainage design — walls without proper drainage behind them fail reliably.

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Free Estimates Lee's Summit + KC Metro Residential + Commercial

Free Estimate

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The Finished Project

Stable grade, usable space, lasting structure.

A concrete retaining wall turns a sloped, eroding yard into defined, usable space. With proper drainage built into the wall from the start, it holds without hydrostatic pressure failure — and gives the landscape the structure it needs to stay put on KC's expansive clay.

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Residential

Retaining walls built for the soil pressure and drainage realities of KC clay.

Retaining walls manage grade changes, prevent erosion, redirect drainage, and create usable flat areas on sloped residential lots. In Lee's Summit, clay soil puts substantial lateral pressure on wall systems — particularly when that soil is wet and swollen. A wall that doesn't account for the drainage behind it will fail from hydrostatic pressure, often within 2–4 years.

We build poured concrete retaining walls for residential properties, tiered wall systems for significant grade changes, and low walls for landscape features and drainage management. We scope walls with drainage as a primary design element, not an afterthought.

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Beautiful concrete retaining wall with integrated steps at a residential property

Common Situations

When a retaining wall is the solution

› Sloped backyard or side yard with erosion or runoff problems
› Grade change at a property edge or between neighbor lots
› Driveway cut creating a slope that needs support
› Creating flat outdoor living space from a sloped lot
› Directing drainage away from the foundation on a sloped lot
› Replacing a failing block, timber, or existing concrete wall

Technical Factors

What determines whether a retaining wall holds

Drainage Behind the Wall

Hydrostatic pressure from water-saturated soil is the primary cause of retaining wall failure. Gravel backfill and weep holes in the wall face let water escape rather than build pressure.

Footing Depth and Width

Wall footings need to extend below the frost line to prevent heave, and be wide enough to distribute the wall load. Walls poured without proper footings move over time.

Reinforcement

Taller walls require rebar. The reinforcement schedule depends on wall height, soil conditions, and surcharge load (what's on top of the retained soil — vehicles, structures, etc.).

Batter and Geometry

A slight backward lean (batter) into the retained soil adds stability. The geometry of the wall system matters as much as material strength for walls over 3 feet.

Lee's Summit / KC Context

Retaining walls on Lee's Summit clay — drainage is the design constraint

Expansive clay imposes more lateral pressure on retaining walls than sandy soils because it holds water longer and swells more dramatically when saturated. We've seen block retaining walls on residential properties fail within 3 years because the gravel drainage layer behind the wall was missing or inadequate. Poured concrete walls are more durable than block or timber in these conditions, and we always include proper drainage design in the scope — it's not optional on KC clay.

What We Handle

Common retaining wall applications

Grade Change Management

Managing significant elevation changes on residential lots — particularly where the grade drops sharply from the house toward the yard or from the street toward the property.

Erosion Control

Stabilizing slopes that lose soil in rain events. Walls interrupt the slope, reduce runoff velocity, and prevent the ongoing erosion that damages landscaping and exposes roots.

Drainage Diversion

Redirecting surface water away from the foundation by creating a barrier and controlled drainage path. Often combined with grading work and drainage tile.

Landscape Terracing

Tiered walls that create flat planting beds or lawn areas on sloped lots. Multiple shorter walls are often more stable and more visually appealing than a single tall wall.

Driveway Edge Support

Supporting the grade adjacent to a driveway cut — particularly where the driveway is elevated relative to the yard or neighbors the slope directly.

Finished residential concrete driveway in Lee's Summit, MO — strong curb appeal

Stamped concrete patio with outdoor dining furniture — decorative finish

Finished commercial concrete parking lot at a Lee's Summit area business

FAQ

Common questions about this service.

If your question isn't here, call us. We'll give you a direct answer.

(816) 608-7761

How tall can a concrete retaining wall be?

Residential concrete retaining walls up to 4 feet are practical without exceptional structural requirements. Taller walls require engineered designs and typically permits. We'll tell you when a wall height requires engineering review — and we'll refer you to a structural engineer if needed before we scope the work.

What causes retaining walls to fail?

The most common failure cause is inadequate drainage behind the wall. Water builds pressure that eventually pushes even well-constructed walls outward. The second most common cause is insufficient footing depth or width, which allows the wall to tip or slide as the soil moves. Both are addressable with proper design.

Do I need a permit for a retaining wall in Lee's Summit?

Generally yes for walls over a certain height — the specific threshold varies by Lee's Summit and Jackson County code. We'll discuss permit requirements during the estimate visit and can point you toward the right municipal contacts for confirmation. We don't pull permits on behalf of the property owner, but we help you understand the process.

Can you build a retaining wall where one is currently failing?

Yes — and we recommend assessing why the existing wall failed before building a replacement. If the drainage wasn't right on the original wall, it needs to be corrected in the new scope. Building a new wall without addressing the failure cause produces the same outcome.

How long does a concrete retaining wall last?

A properly designed and built concrete retaining wall should last 40–50 years or longer. Premature failure almost always involves drainage or foundation issues, not concrete deterioration.

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