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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon86
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*The Angi rating for Retaining Wall Installation companies in Washington, 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 Washington, 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 August 01, 2026

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

Avatar for L & Q LANDSCAPING-CONSTRUCTION, LLC
L & Q LANDSCAPING-CONSTRUCTION, LLC
3.4(
8
)
Retaining Wall - Install

Serving Washington, IL and surrounding areas

In business since 2021

Free estimates

Small jobs welcome

"Great team of people. Very efficient, courteous, and they did an amazing job! Very satisfied with the landscaping job they did! Will definitely be hiring them for my next job project!"
Brick Patio
Concrete
Rock and Stone
Rubber Mulch
Brick and Stone

+2

Response time10 mins
Response rate100%
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Retaining Wall Installers FAQs, answered by experts

Yes, you can use cinder blocks for many purposes, including retaining walls, foundations, garage walls, and fences. Building a cinder block retaining wall costs between $60 and $200 per linear foot, including materials and professional labor. For a 30-foot-long retaining wall, the cost ranges from $1,800 to $6,000.

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.

With foundation walls, the slab on grade and force at the top of the wall is resisted by flooring. With retaining walls, the force at the top of the wall is not resisted.

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.

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.

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

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