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Verified Reviews for Retaining Wall Installation pros in Barnwell, SC

*The Angi rating for Retaining Wall Installation companies in Barnwell, SC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Retaining Wall Installation needs.

*The HomeAdvisor rating for Retaining Wall Installation companies in Barnwell, SC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Retaining Wall Installation needs.

Last update on March 26, 2026

Find Retaining wall installation pros in Barnwell

Avatar for Ideal Landscaping
Ideal Landscaping
4.5(
13
)
Retaining Wall - Install

Serving Barnwell, SC and surrounding areas

In business since 2018

Free estimates

Credit card accepted

"Ideal Landscaping did an exceptional job on my leaf removal project. Ideal Landscaping was professional and responsive in all of our communications setting up the project. They were fair in their pricing and performed an exceptional same day job. I will definitely hire them again and I encourage you to as well. Five star service!"
Tree Service Project
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+5

Recommended by83%of homeowners
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Avatar for Milhouse Landscaping
Milhouse Landscaping
4.5(
6
)
Retaining Wall - Install

Serving Barnwell, SC and surrounding areas

In business since 2015

Emergency services offered

Credit card accepted

"It went very well! They were friendly, professional, and knowledgeable about what they're doing. They also had a fair price."
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+6

Recommended by100%of homeowners
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CALVIN JOHNSON MASON
3.0(
4
)
Retaining Wall - Install

Serving Barnwell, SC and surrounding areas

In business since 1979

Free estimates

"Calvin Johnson did an outstanding job bricking my patio. Not only is he professional and dependable, he was able to provide advice on the best material, style of the bricks and layout so that the results were even better than I expected. Absolutely beautiful work - he is an expert at masonry! Thank you Calvin and company for improving the value of my home!"
Recommended by100%of homeowners
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Retaining Wall Installers questions, answered by experts

Each design is different, so we can’t say definitively if you’ll need a dedicated drainage system in place for a two-foot retaining wall. However, you can likely skip the drainage, as this project is typically served for walls that are 4 feet tall or more. Even with a relatively low wall, consider drainage if you are building on top of clay or poor-draining soil types or if there are buried water sources nearby, like a well used for other outdoor garden projects.

To maintain the integrity of your landscape, a retaining wall must be installed if the slope of the angle exceeds 35 degrees. The lean of the wall must be 1 inch per 12 inches in height to disperse the weight of the soil uniformly and guarantee the correct drainage of the soil.

If you don’t backfill a retaining wall—either at all or adequately enough—the wall won’t drain well, and water will be able to pass through it. Poor drainage will lead to a warped wall or a buildup of hydrostatic pressure, which can eventually collapse your retaining wall. If you have particularly sloped land, consult a structural engineer to ensure your hardscaping is adding value to your home.

Sand and gravel are two suitable options for filling behind a retaining wall. If you’re building your own retaining wall, you’ll complete this part of the process—known as backfilling—after you finish laying the blocks. Make sure not to skip it—otherwise, you could wind up with drainage issues, which can cause your retaining wall to collapse.

Failure to compact the soil during construction is the most common cause of leaning retaining walls. In addition, poor drainage can lead to excessive water pressure behind a retaining wall, pushing against it until it begins to move forward away from the soil it is holding back.

The Barnwell, SC homeowners’ guide to retaining wall installation services

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