How Much Does a Retaining Wall Cost in 2024?

Retaining Wall Cost Factors

Regional labor rates and the cost of materials are two of the biggest factors in building a retaining wall. Complex projects using concrete bricks in hard-to-access areas are the most expensive, while simple interlocking blocks made from rammed earth fall on the lower end of the price range.    

Labor

Labor costs fluctuate by region and market, but most contractors charge between $50 to $75 per hour to build a retaining wall. Several factors affect the cost of labor for your project. Blocks with interlocking or pin mechanisms take less time to form and fit together, while rammed earth slabs require more time and care.

Talk to a retaining wall contractor in your area to learn more about the best materials and retaining wall types for your home and climate.

Other variables that can affect the cost of labor include:

• Wall height: Walls that are over four feet high require footings, reinforcement, and scaffolding. They may also require engineered drawings, leading to additional costs.

• Access: Easy access allows larger machines to do most of the work. Manual labor is more expensive in hard-to-reach areas.

• Gate and fence removal: Removing and replacing any existing gates and fences affects the final project cost.

In addition, handling the following materials may incur extra labor fees.

Materials 

Materials for a retaining wall range from $5 to $125 per square foot. While materials like rammed earth are more affordable, they may not be suitable for every project. For example, some locations and projects may require poured concrete, which costs more than the most affordable compressed earth option.

Size

On average, retaining walls cost $20 to $60 per square foot, with large, complex builds with high-end materials costing up to $125 per square foot.

Retaining Wall Costs by Type

The cost to build a retaining wall depends primarily on the type of wall you build. When choosing the type of retaining wall you want, it's essential to consider several factors: 

• Establish the intended purpose of the retaining wall. 

• Determine the length and height it needs to be. 

• Understand moisture conditions where you plan to have your wall built.

• Know the look and style you’re going for. 

• Decide on your budget for the project. 

A contractor or local residential structural engineer can help you determine which materials are most appropriate for your particular wall type. 

Concrete Retaining Wall

Concrete retaining walls cost $10 to $100 per square face foot (or the square feet of the face of the wall). You can choose from poured, split-face block, or CMU (cinder block). You may also use veneers on poured and cinder walls, but the split-face look comes with a rock-like texture and various colors.

Wood or Timber Retaining Wall 

Wooden retaining walls average $15 to $30 per square foot. They typically last five to 20 years and are a favorite for gardens because of their natural appearance. You can easily find this cost-effective material locally. The downside of using wood is that it’s susceptible to rot and water damage. However, drainage and waterproofing during installation can make this style last decades.

Gabion and Stone Retaining Wall

Stone retaining walls cost $5 to $100 per square foot. Prices range from the inexpensive and practical gabion to the high-end stacked stone and limestone options.

Brick Retaining Wall

Brick walls cost $10 to $45 per square foot. Bricks can act as a veneer in a retaining wall, meaning they're only one brick thick (a wythe), typically outside of poured or block concrete. They're often only suitable up to about 4 feet in height when used alone, but above that height, you'll want to have them two wythes thick for better stability.

Metal Retaining Wall 

There are many metal retaining wall options to choose from, including sheet piling, corten, and I-beam. Keep in mind that metal rusts over time and works better in some climates than others, but it can last for many decades if installed and treated properly, with galvanized steel lasting the longest in coastal environments. 

Rammed Earth and Compressed Earth Block Retaining Wall

Rammed earth retaining walls cost $20 to $30 per square foot. They're created by compacting earth with a binder into a hardened structure. Modern methods use some cement as a binder and can reach the strength of concrete. Although not used extensively, it's a more environmentally responsible alternative to brick and concrete. 

On the other hand, compressed earth blocks are different from rammed earth walls because they’re compressed individually, coming as low as $5 to $10 per square foot.

Railroad Tie Retaining Wall 

Railroad tie retaining walls cost $25 to $30 per square foot. Because they're soaked in creosote, they don't rot the way untreated wood does. But it's also toxic to humans, making it a less popular option. Check with your local code enforcement or contractor to see if you can use these in your area.

Retaining Wall Enhancement Costs

You have lots of options to accent or enhance your new retaining wall. Customizing your landscape can upgrade outdoor entertaining spaces and even increase your home’s resale value. 

Brick Veneer

Brick siding costs $9 to $28 per square foot. You can cut the price further by using thin brick. Your pro will attach the brick one wythe thick against the supporting wall, usually concrete or cinder block.

Stone Veneer

Stone veneers cost $35 to $50 per square foot on average, with some materials pushing $100 per square foot. It's often rock or concrete molded and colored to mimic rock. Faux stone (concrete) costs $5 to $15 per square foot to purchase and install. 

While natural veneers don’t offer more protection compared to concrete, they’re highly durable, resistant to pests and rot issues, and offer aesthetic benefits. They’re also low-maintenance and lightweight, making them much easier to install than full stone walls. Here are a few natural stone choices:

• Sandstone

• Limestone

• Slate

• Granite

Additional Enhancements

If you want to add a kitchen or patio on top of your wall, you'll likely need to plan for a footing to help bear the extra weight. Other popular enhancements include murals or lighting to customize your retaining wall.

Concrete Retaining Wall Foundation

Poured concrete retaining walls may require an additional $30 to $100 per linear foot for foundations and pilings for the cost of concrete footing. You’ll need these for walls more than four feet high. They’re also necessary for large projects in climates with freeze-and-thaw cycles that might crack poured concrete. To avoid this price, consider using modular blocks, which allow for slight shifting.

Retaining Wall Costs by Location

Retaining wall costs vary slightly by location on your property, primarily due to how much reinforcement they'll need to withstand forces applied to the earth they're holding back. Materials and size also play a large role.

• Landscape retaining walls: $30–$150 per linear foot

• Driveway retaining walls: $50–$150 per linear foot

• Lake and seawalls: $150–$500 per linear foot

Cost to Replace a Retaining Wall

Replacing a retaining wall adds $2 to $6 per square foot for demolition and the cost of concrete removal. Anticipate paying for services by the hour, square foot, and/or day, depending on the amount of work required. 

Cost to Repair a Retaining Wall

Retaining wall repairs cost $800 to $1,000 on average. Large projects can run up to $20,000. Keep an eye out for leaks, cracks, and shifts. The faster you catch a problem, the lower your cost is likely to be.

Budgeting for Building a Retaining Wall

Retaining wall installations typically require a pro to build the wall, but there’s plenty you can do to keep the project budget-friendly:

• Try to schedule your retaining wall installation in the warmer months when it’s easier to work outdoors. Although retaining walls can be installed at any time of year, frozen earth slows down digging and can increase labor costs.

• Move any vehicles, furniture, or greenery that may obscure access to the building area.

• Check your local regulations before building to see if you need any permits to build a retaining wall.

• Consider upfront costs vs. longevity. Adding waterproofing or a foundation may cost more today, but it could save you from costly repairs in the future.

How HomeAdvisor Gets Its Cost Data

No place is more important than your home, which is why HomeAdvisor connects homeowners with local pros to transform their houses into homes they love. To help homeowners prepare for their next project, HomeAdvisor provides readers with accurate cost data and follows strict editorial guidelines. We surveyed thousands of real customers about their project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.