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TRUSTED BY OLNEY, MD HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon807
    Verified retaining wall installation services reviews

Find Retaining wall installation pros in Olney

"quality of work is good. One issue was they tried to change agreed upon price after work was completed, however, they did honor original estimate. When reviewing my outside cameras to understand why agreed upon maintenance cost increased 100% from a few months earlier it became clear, two employees at all times were sitting in their truck while the other two were working..."

Brian H on October 2021

Additional contact: Matt Baumann, [email protected]. Rick baumann, [email protected] Currently not accepting jobs under $5,000 due to high demand. Check back for updates!

"quality of work is good. One issue was they tried to change agreed upon price after work was completed, however, they did honor original estimate. When reviewing my outside cameras to understand why agreed upon maintenance cost increased 100% from a few months earlier it became clear, two employees at all times were sitting in their truck while the other two were working..."

Brian H on October 2021


Avatar for E T General Contractor INC

E T General Contractor INC

4.69(
408
)
Approved Pro

E T General Contractor INC

4.69(
408
)
Approved Pro
Customers say: Super punctual
27 years of experience
Free onsite estimate

Call or text us at (703) 906-9735 or +1 (571) 662-9675 ** ET General Contractor INC was formed to provide general contracting services in the commercial and residential industry. ET General Contractor INC is insured in the state of Virginia. We have a Class A Contracting License. Our employees are direct employees and we don’t subcontract any work. Our employees are trained individuals who are responsible and produce quality workmanship. In our 25 years of experience we've completed our jobs in a timely and professional manner. Here at ET General Contractor INC I, Julio, conduct weekly meetings to cover issues relating to job and personal safety. We practice open communication and team work with management and field personnel allowing growth and success. I would sincerely appreciate an opportunity to work with you on any of your projects. We do tree-work, patios, driveways, interior/exterior renovations, grading, roofing, deck building, window installation, retaining walls, drainage systems, we do it all.

"I had a very pleasant and positive experience working with Julio. He was professional, polite, knowledgeable, and very responsive. He and his team did a great job, on time as promised. I would gladly use them again."

Adam S on November 2025

Call or text us at (703) 906-9735 or +1 (571) 662-9675 ** ET General Contractor INC was formed to provide general contracting services in the commercial and residential industry. ET General Contractor INC is insured in the state of Virginia. We have a Class A Contracting License. Our employees are direct employees and we don’t subcontract any work. Our employees are trained individuals who are responsible and produce quality workmanship. In our 25 years of experience we've completed our jobs in a timely and professional manner. Here at ET General Contractor INC I, Julio, conduct weekly meetings to cover issues relating to job and personal safety. We practice open communication and team work with management and field personnel allowing growth and success. I would sincerely appreciate an opportunity to work with you on any of your projects. We do tree-work, patios, driveways, interior/exterior renovations, grading, roofing, deck building, window installation, retaining walls, drainage systems, we do it all.

"I had a very pleasant and positive experience working with Julio. He was professional, polite, knowledgeable, and very responsive. He and his team did a great job, on time as promised. I would gladly use them again."

Adam S on November 2025


Avatar for GP Rentals & Contractors

GP Rentals & Contractors

5.00(
1
)
Approved Pro

GP Rentals & Contractors

5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
24 local quotes requested

Our company strives to work with residential homeowners, real estate developers, general contractors and small companies to do any excavation/foundation work. We also offer rentals for local companies. We pride ourselves on the quality work we provide, while delivering great customer service. Call -or- click to schedule an estimate today!

"Excellent customer service. Top notch quality service. We will definitely be using again for all our construction needs"

Vikki D on November 2024

Our company strives to work with residential homeowners, real estate developers, general contractors and small companies to do any excavation/foundation work. We also offer rentals for local companies. We pride ourselves on the quality work we provide, while delivering great customer service. Call -or- click to schedule an estimate today!

"Excellent customer service. Top notch quality service. We will definitely be using again for all our construction needs"

Vikki D on November 2024


Avatar for SBC Outdoor Services

SBC Outdoor Services

4.58(
26
)
Approved Pro

SBC Outdoor Services

4.58(
26
)
Approved Pro
Customers say: True professional
271 local quotes requested
23 years of experience

OVER 100 YEARS COMBINED EXPERIENCE AS YOU PATIO AND HARDSCAPE EXPERTS! SBC Outdoor Services was founded in 2015 by Brad Crist. Brad had over 15 years of experience in the industry and wanted to create a landscaping company that could hold true to the concept of “quality landscaping.” Ever since then we've been constantly growing as a high-end hardscape, landscape design, and commercial maintenance business. Over the course of our existence, we've earned a great reputation for quality service and we aim to not just maintain our reputation for excellence but to constantly improve it. That's why we only hire the best of the best. Our management team alone has over 30 years of experience in the industry and members of management used to maintain the White House. The rest of our team is similarly qualified and has over 100 years of combined experience. At SBC Outdoor Services we believe that landscaping is an art, not just a skill. We not only teach our employees proper installation methods but also encourage them to take initiative and to completely pour their imagination and skill into their work. Our design and installation divisions make sure that the product will be very functional as well as attractive while our maintenance division employees take great pride in the ongoing beauty of your property.

"I hired them to do landscaping and a driveway, my drive way is crumbling and have holes in it."

Cynthia R on December 2023

OVER 100 YEARS COMBINED EXPERIENCE AS YOU PATIO AND HARDSCAPE EXPERTS! SBC Outdoor Services was founded in 2015 by Brad Crist. Brad had over 15 years of experience in the industry and wanted to create a landscaping company that could hold true to the concept of “quality landscaping.” Ever since then we've been constantly growing as a high-end hardscape, landscape design, and commercial maintenance business. Over the course of our existence, we've earned a great reputation for quality service and we aim to not just maintain our reputation for excellence but to constantly improve it. That's why we only hire the best of the best. Our management team alone has over 30 years of experience in the industry and members of management used to maintain the White House. The rest of our team is similarly qualified and has over 100 years of combined experience. At SBC Outdoor Services we believe that landscaping is an art, not just a skill. We not only teach our employees proper installation methods but also encourage them to take initiative and to completely pour their imagination and skill into their work. Our design and installation divisions make sure that the product will be very functional as well as attractive while our maintenance division employees take great pride in the ongoing beauty of your property.

"I hired them to do landscaping and a driveway, my drive way is crumbling and have holes in it."

Cynthia R on December 2023


Avatar for Edward’s Lawn & Landscaping

Edward’s Lawn & Landscaping

4.63(
217
)
Approved Pro

Edward’s Lawn & Landscaping

4.63(
217
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
251 local quotes requested

Founded in 2007, Edward's Lawn & Landscaping has proudly served residential and commercial clients across Central Maryland for over 17 years. We specialize in full-service landscape maintenance, landscape installations and enhancements, lawn fertilization and weed control, hardscape design, landscape drainage solutions, lawn renovations, construction, and creating beautiful outdoor living spaces. Contact us today for a FREE estimate or to schedule a no-obligation onsite consultation with one of our landscape professionals!

"Yes, job was done well."

Stacy S on April 2025

Founded in 2007, Edward's Lawn & Landscaping has proudly served residential and commercial clients across Central Maryland for over 17 years. We specialize in full-service landscape maintenance, landscape installations and enhancements, lawn fertilization and weed control, hardscape design, landscape drainage solutions, lawn renovations, construction, and creating beautiful outdoor living spaces. Contact us today for a FREE estimate or to schedule a no-obligation onsite consultation with one of our landscape professionals!

"Yes, job was done well."

Stacy S on April 2025


Avatar for Horizon Landscaping Designs LLC

Horizon Landscaping Designs LLC

4.91(
102
)
Approved Pro

Horizon Landscaping Designs LLC

4.91(
102
)
Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
44 local quotes requested

Outdoor Designs it Includes: MASONRY AND HARDSCAPE Drainage Solutions, Patios, retaining walls, walkways, fireplaces, firepit, fences, driveways, columns, ponds, mulch, etc. We have general liability insurance License Maryland ( MHIC No. 133815 ) License Virginia Class A VA 2705189468 Free Estimate and Designs

"Horizon Landscaping Designs did a superb job of refurbishing the retaining wall on our property. It required a significant effort as it was over 20 years old and beginning to collapse. The work was completed in only two days and the crew worked nonstop to get it done. The work was flawless and the wall is in top condition now. The cost was reasonable and well worth the quality of the work. We highly recommend Horizon!"

Kathy K on September 2025

Outdoor Designs it Includes: MASONRY AND HARDSCAPE Drainage Solutions, Patios, retaining walls, walkways, fireplaces, firepit, fences, driveways, columns, ponds, mulch, etc. We have general liability insurance License Maryland ( MHIC No. 133815 ) License Virginia Class A VA 2705189468 Free Estimate and Designs

"Horizon Landscaping Designs did a superb job of refurbishing the retaining wall on our property. It required a significant effort as it was over 20 years old and beginning to collapse. The work was completed in only two days and the crew worked nonstop to get it done. The work was flawless and the wall is in top condition now. The cost was reasonable and well worth the quality of the work. We highly recommend Horizon!"

Kathy K on September 2025


Avatar for Mynor Stone Work

Mynor Stone Work

5.00(
3
)
Approved Pro

Mynor Stone Work

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
39 local quotes requested

We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"They were on time. And stayed on schedule with the work. They also helped out with adjusting to our budget helping us choose the best materials for our project."

Ruth M on April 2024

We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"They were on time. And stayed on schedule with the work. They also helped out with adjusting to our budget helping us choose the best materials for our project."

Ruth M on April 2024


Avatar for Remy Landscaping LLC

Remy Landscaping LLC

4.73(
478
)
Approved Pro

Remy Landscaping LLC

4.73(
478
)
Approved Pro
Customers say: Super punctual
27 local quotes requested
18 years of experience

Remy Landscaping LLC, is a small local company offering personalized service in landscape maintenance, landscape installation and fence installation to residential and commercial customers. Our competitive business serves all of Montgomery County with a combined total of 10 years experience. We believe in providing the highest quality service through honest and responsible work at competitive prices.

"Always great"

Ralph M on May 2024

Remy Landscaping LLC, is a small local company offering personalized service in landscape maintenance, landscape installation and fence installation to residential and commercial customers. Our competitive business serves all of Montgomery County with a combined total of 10 years experience. We believe in providing the highest quality service through honest and responsible work at competitive prices.

"Always great"

Ralph M on May 2024


Avatar for ATD Landscaping LLC

ATD Landscaping LLC

4.61(
314
)
Approved Pro

ATD Landscaping LLC

4.61(
314
)
Approved Pro
Customers say: Super punctual
39 local quotes requested
26 years of experience

Specializing in landscape renovations to include storm water remediation, dry creek beds, paver and flagstone patios, retaining walls, and even vegetable gardens. Visit our photo gallery for ideas with more ideas at our website at www.atdlandscaping.com to view our gallery, learn about our start-to-finish promise, and schedule a landscape consultation.

"Carolyn T. I have never written a review before for any company, but I find it necessary to share our experience with the ATD Landscaping Company. We found them to be very friendly and helpful. They worked with us from start to finish, also helping us with the choice of materials and style. We contracted them to replace our walkway and garden wall. They were always on time and worked diligently and meticulously to finish our project. They assured us that once they started our project, they would come every day until it was finished. And that's exactly what they did. The end result is simply beautiful. I highly recommend this company to anyone who wants a great and hassle free experience."

Carolyn T on September 2024

Specializing in landscape renovations to include storm water remediation, dry creek beds, paver and flagstone patios, retaining walls, and even vegetable gardens. Visit our photo gallery for ideas with more ideas at our website at www.atdlandscaping.com to view our gallery, learn about our start-to-finish promise, and schedule a landscape consultation.

"Carolyn T. I have never written a review before for any company, but I find it necessary to share our experience with the ATD Landscaping Company. We found them to be very friendly and helpful. They worked with us from start to finish, also helping us with the choice of materials and style. We contracted them to replace our walkway and garden wall. They were always on time and worked diligently and meticulously to finish our project. They assured us that once they started our project, they would come every day until it was finished. And that's exactly what they did. The end result is simply beautiful. I highly recommend this company to anyone who wants a great and hassle free experience."

Carolyn T on September 2024


Avatar for Austin Services

Austin Services

5.00(
19
)
Approved Pro

Austin Services

5.00(
19
)
Approved Pro
Super Service Award
Customers say: Quick response
6 years of experience
Free onsite estimate

Austin Services is your go-to company for reliable and affordable moving, junk removal, and landscaping services. Whether you're moving locally or regionally, we ensure a stress-free experience with dependable service at a great price. We pride ourselves at providing binding estimates so that you will never pay more than the estimate price for your move! Our junk removal service offers flexible scheduling and top-notch customer service to fit your needs. For landscaping, we provide high-quality work at an affordable rate, serving both residential and commercial properties. We help businesses, schools, churches, and organizations save money while delivering superior results. Trust us for all your moving, junk removal, and landscaping needs!. Give Austin Services a call today, we look forward to working with you!

"I found Austin Services through social media: FB mom’s group in Rockville-Bethesda and Gaithersburg area. My experience with this company was awesome. They are professional, punctual, friendly and so kind. The price is fair. I hope this business continues and grows fast because their service is excellent!!! "

Karen M on April 2025

Austin Services is your go-to company for reliable and affordable moving, junk removal, and landscaping services. Whether you're moving locally or regionally, we ensure a stress-free experience with dependable service at a great price. We pride ourselves at providing binding estimates so that you will never pay more than the estimate price for your move! Our junk removal service offers flexible scheduling and top-notch customer service to fit your needs. For landscaping, we provide high-quality work at an affordable rate, serving both residential and commercial properties. We help businesses, schools, churches, and organizations save money while delivering superior results. Trust us for all your moving, junk removal, and landscaping needs!. Give Austin Services a call today, we look forward to working with you!

"I found Austin Services through social media: FB mom’s group in Rockville-Bethesda and Gaithersburg area. My experience with this company was awesome. They are professional, punctual, friendly and so kind. The price is fair. I hope this business continues and grows fast because their service is excellent!!! "

Karen M on April 2025

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Retaining Wall Installers questions, answered by experts

Most retaining wall installations can be finished in one to three weeks, but the timeline varies based on factors like wall size and material. The local climate and major weather events, such as storms or flooding, can also extend the project's timeline, as can any holds ups in the permitting process.

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.

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 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.

Small retaining walls still require a foundation of some kind, typically a concrete footing. This helps to ensure the wall is structurally sound and prevents the ground from shifting over time, especially during those winter freeze/thaw cycles. The footing helps spread the weight of the wall and the load it carries over a larger area of the ground, thus assisting with stability. This is true of small retaining walls, larger rock garden walls, and the like. 

The Olney, MD 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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