How Much Does a Retaining Wall Cost in Los Angeles? [2026 Data]

Building a retaining wall in Los Angeles costs $7,140 on average, but you could see prices as low as $2,674 or as high as $11,842. Los Angeles’s high erosion rates make it a prime location for installing a retaining wall. Costs vary by wall size, materials, labor, and more, so use this guide to budget for your project.

Retaining Wall Cost Factors 

Retaining wall costs in Los Angeles, California, depend on factors like linear footage, materials, terrain, site prep, drainage, and more. The factors below outline what you need to know.

Size

The length and height of your retaining wall have the biggest impact on price, with taller retaining walls costing more per linear foot. For example, a 2-foot-tall retaining wall costs $45 to $240 per linear foot, while retaining walls up to 6 feet high cost about $425 per linear foot. 

The following table summarizes common retaining wall sizes and their average costs. Note that the lower end of the cost range is for walls 2 feet high, while the higher end of the cost range is for walls 6 feet or taller.

Materials

The type of material you choose will greatly affect what you pay. Here’s a look at the average prices for common retaining wall materials per square foot.

Material Delivery

Your contractor may charge an extra fee for material delivery. If that’s the case, expect to spend $35 to $120 per truckload of stone, brick, or concrete blocks.

Terrain

The terrain and soil composition in the surrounding area impact the cost of building a retaining wall. Additional labor is needed for sloped grounds, which can increase labor costs by 50% or more. Slopes near canyons like the Hollywood Hills and erosion caused by rain are typical in Los Angeles. In this situation, the contractor must excavate to construct step-downs or terrace the slope to accommodate a safe retaining wall. 

Site Prep

Your contractor will prep the site before building the retaining wall. This may include land clearing, land grading, and tree removal. If your wall is more than 4 feet tall, you’ll need a structural engineer to design it. Here’s what you might pay for site prep.

Drainage

All retaining walls need drainage, as their purpose is to stop erosion on a slope. There are various methods, including pipes, gravel, weep holes, and criblock designs. If you already have a retaining wall that isn’t properly draining, you may need to spring for repairs or a full replacement.

Expect to spend $70 to $80 per linear foot on excavation to fix drainage issues. If you’re replacing the wall, it will cost $25 to $35 per linear foot to demolish the old wall and install a new one.

Soil Type

The soil in your yard will determine the type of retaining wall you can build. Certain walls work better with certain soil types. The clay soil in Los Angeles can expand and contract when wet, especially during rainy seasons. Your retaining wall will have to withstand the pressure from the expansion. 

In addition, rocky soil with many boulders will require your contractor to spend extra time clearing the land. It will also be more difficult to excavate, so you can expect higher labor costs across the board.

Reinforcements

Your retaining wall may need reinforcement, which could increase your material and labor costs. A hardscaping pro will add rebar either horizontally or vertically. Rebar costs around $0.90 to $1.90 per square foot. If your wall is particularly long or tall, it may also require footings with different fill materials (costs vary by material).

A structural engineer adds reinforcements when:

• The wall is taller than 4 feet

• The wall is longer or taller than average

• You’re installing a sea wall

• You live in a climate with extreme weather

Waterproofing

Waterproofing costs $2 to $10 per square foot and can increase the lifespan of your retaining wall. This stops water from seeping into wall joints, which can damage the structural integrity over time. Some materials (like vinyl) are more waterproof than others, so make sure to check with your contractor.

Retaining Wall Pro Costs

The cost to hire a retaining wall pro in Los Angeles, California, depends on the project scope, materials used, and installation method.

Labor

Labor is a significant part of retaining wall costs. If you hire a hardscape contractor, they will charge an average of $60 to $90 per hour or $20 to $60 per square foot. Their rates will also depend on the wall’s materials and the overall complexity of the project. Interlocking retaining wall blocks or pin mechanisms are the fastest and easiest to install compared to hand-stacked limestone or I-beam retaining walls.

Permits

You may need to acquire a permit from the City of Los Angeles to build a retaining wall taller than 4 feet or one that supports a surcharge. The city doesn’t list specific permit costs for retaining walls, but there is a $77 building and safety permit fee for single-family engineering. The fees increase based on the project's valuation, and most permits cost hundreds of dollars or more. Check with your contractor and the city, and fully understand the requirements before starting. 

Additional Pros to Consider Hiring

You may need additional pros for your retaining wall installation in Los Angeles. These pros come with their own costs:

• Structural engineer: $340–$780

• Land clearing pro: $1,400–$6,200

• Land leveling pro: $1,000–$3,300

• Tree removal contractor: $200–$2,000

Does a Retaining Wall Increase Home Value?

Retaining walls can increase home value by as much as 15%, with a return on investment of 100% to 200%. In Los Angeles, California, where erosion is common due to hilly terrain and many homes are in high-risk fire zones and near coastal waves, you could see a larger ROI when building a retaining wall than in regions with lower reinforcement needs. Consider whether installing a new retaining wall will add value to your home before putting it on the market.

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We survey real Angi 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. 

Want to help us improve our cost data? Send us a recent project quote to [email protected]. Quotes and personal information will not be shared publicly.