Retaining Wall

A retaining wall is a structure designed to hold back soil and prevent erosion, but for homeowners, it's also a way to create usable outdoor space on sloped terrain. Whether you're looking at timber, stone, or concrete block options, the right wall adds both function and curb appeal. Angi helps you find local pros and resources to get your retaining wall project started.

Related to Retaining Wall Service

Retaining Wall Service Articles and Advice
Angi  •  May 3, 2026
How Much Does Shotcrete Cost? [2026 Data]
Learn about the average cost of shotcrete, including installation, labor, and material expenses. Discover how to budget, save, and select the right pro.
Jill Harness  •  May 3, 2026
How to Build a Flood Wall Around Your House
Building a flood wall around your house is a worthwhile investment. For superior protection in a flood zone, it’s best to hire a pro to do the work for you.
Jenna Jonaitis  •  May 3, 2026
Who to Hire to Install a Block Wall
A landscaper can install a block wall that’s structurally sound and looks beautiful. Learn all about hiring a landscaping contractor for this project.
Taylor Freitas  •  May 3, 2026
Retaining Wall Calculator: How to Calculate Blocks for a Retaining Wall
Not sure how to calculate blocks for your retaining wall? Here’s how to figure it out based on the size of your wall and the dimensions of your blocks.
Xiao Faria daCunha  •  May 3, 2026
8 Reasons Retaining Walls Fail: Signs to Look For
Understand the 8 reasons why retaining walls fail, the signs to look for, and how to prevent a full collapse while you still can.
Dan Simms  •  May 3, 2026
6 Retaining Wall Questions to Ask Before Hiring a Professional
Replacing a retaining wall or installing a new one after grading? Here are some retaining wall questions you should be prepared to answer when hiring a pro.
Allie Ogletree  •  May 2, 2026
10 Common Shoreline Erosion Problems and Solutions
Shorelines are prone to erosion, making beach- or lakefront property lose appeal. Here are 10 erosion issues and how to mitigate waterfront erosion.
Timothy Moore  •  May 2, 2026
What Is a Retaining Wall and What Does It Do?
If you're looking for an effective solution to prevent soil erosion and create usable spaces on sloped terrains, it's time to learn: what is a retaining wall?
Find Hardscaping Contractors near you
Share your project details and we’ll match you with up to 3 available pros near you.
Common Retaining Wall Service Questions

Generally, a railroad tie retaining wall consisting of a single line of ties should be between 3 and 4 feet tall—and the height often tops out at around 6 feet. You can go taller, but you may need additional footings and reinforcements, including a second layer of railroad ties to support the added weight of the soil it’s holding back.

Regular inspection for issues like cracks or leaning and ensuring drainage stays clear.

While vinyl is the least costly material for building a retaining wall, the most cost-effective method is to use wood or concrete blocks for a DIY retaining wall under 2 feet tall. Wood is inexpensive but lasts 20 years or more with care. Concrete can cost a little more but is stronger and will last longer with less maintenance.

Generally speaking, a retaining wall should be between 3 and 4 feet high, depending on variables such as the wall-building material, the purpose of the retaining wall, and more. If you want your retaining wall to be taller than 4 feet, check with your local building ordinance office for the maximum allotment. You may also need a special permit for retaining walls over 4 feet tall.

If a leaning retaining wall isn't repaired, soil erosion will amplify until the wall eventually collapses or falls over completely. In addition to causing property damage, there's a risk that the falling wall could cause physical injury.