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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon182
    Verified retaining wall installation services reviews

Top-Rated Retaining wall installation pros in Ashland - Updated Nov 2026

TSG Landscaping
5.0(
13
)
Retaining Wall - Install

Serving Ashland, MO and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"I had this company come out and replace a large retaining wall and install a concrete pad for a shed. From start to finish they were very professional and easy to work with. The communication was great throughout the whole process and the work turned out awesome! I highly recommend this company for future projects! Thank you TSG!"
22 neighbors recently requested a quote
Avatar for Cornine Farm & Residential Services
Cornine Farm & Residential Services
5.0(
2
)
Retaining Wall - Install

Serving Ashland, MO and surrounding areas

Approved

In business since 2025

Credit card accepted

"I couldn’t get the big fencing companies to call me back. This company responded immediately. We ran into a few unforeseen obstacles but they powered through to make sure the job was done right and to my satisfaction. Even asking permission to arrive at 6 AM on a Sunday morning to finish up so they could be home in time to make it to church and spend the afternoon with their families. Not only that, they saw me struggling with a project I was working on and jumped in to help. Then they quickly resolved another issue with a commercial fence joining my yard that was preventing my back gate from closing. They exceeded my expectations and were good company as well. I would highly recommend them not only for their skill but their attitude and values."
Cornine Farm
Cornine Farm
Wall job
Wall job
Wall job

+4

15 neighbors recently requested a quote
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Retaining Wall Installers FAQs, answered by experts

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.

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.

Railroad ties can be good for retaining walls, but it depends on the area. They have a desirable rustic look and are durable. The problem is they’re treated with creosote, a preservative the EPA says poses a risk to humans and wildlife. Over time, the preservative seeps out of the wood and into the ground. Many areas have banned the use of creosote-treated wood on residential properties. If your area does allow it, never use railroad ties near an edible garden or drinking water source. Instead, use wood that’s treated with an EPA-approved preservative or a wood-alternative composite material.

The longevity of flood walls depends on how they were constructed, but most wood, gravel, and cement flood walls last 10 years. While aluminum flood walls may cost far more initially, they can be a good investment as they can last decades and will not be damaged by exposure to the elements.

DIY is possible for small projects. Professional installation ensures structural integrity and durability for larger walls.

The Ashland, MO homeowners’ guide to retaining wall installation services

From average costs to expert advice, get all the answers you need to get your job done.