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*The Angi rating for Retaining Wall Installation companies in Thomson, IL 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 Thomson, IL 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 05, 2026

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Avatar for JB Concrete and Remodeling LLC
JB Concrete and Remodeling LLC
5.0(
1
)
Retaining Wall - Install

Serving Thomson, IL and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"Had them do a sidewalk and front steps. Turned out great. Super friendly. Very happy with the results. Would recommend."
side walk & Driveway
House Foundation
4 neighbors recently requested a quote
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Avatar for SAH Construction
SAH Construction
5.0(
2
)
Retaining Wall - Install

Serving Thomson, IL and surrounding areas

In business since 2025

Free estimates

Warranties offered

"Scott did a great job. The lions share of the work was a new poor in a garage that was dirt and pea gravel. It wasn't easy working in the smaller garage with a low roof. Other work was an alleyway between that garage and my main garage along with a landing from my main garage and having to match up to the ramp up to house along with driveway pavement. So three different levels to match up to and Scott did a great job."
Response time10 hrs
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Retaining Wall Installers questions, answered by experts

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.

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.

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.

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 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.

The Thomson, IL homeowners’ guide to retaining wall installation services

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

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