What is the best material to fill behind a retaining wall?

• <div><p>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.</p></div>

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Q: How long does it take to build a retaining wall?

• <div><p>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.</p></div>

Q: Why do retaining walls lean?

• <div><p>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.</p></div>

Q: How high does a retaining wall have to be?

• <div><p>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.</p></div>

Q: When does a slope need a retaining wall?

• <div><p>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.</p></div>

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WoodRock Construction

5.0(

)

Retaining Wall - Install

Serving Prattsburgh, NY and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Matt did a full septic installation on a new build house. He did a great job with the system, and gave flatter and more yard space after the system was put in. The grading and shaping of the land was superb"

+16

Response time1 day

Response rate100%

3 neighbors recently requested a quote

Retaining Wall - Install

Serving Prattsburgh, NY and surrounding areas

In business since 1994

Free estimates

Emergency services offered

"I am happy to recommend Miller Remodeling for an excellent fence construction project done for us. They were dependable, courteous, thorough and hardworking. They gave us prompt and competent service even in trying weather conditions . We would definitely utilize their services again."

Recommended by100%of homeowners

Retaining Wall - Install

Serving Prattsburgh, NY and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"It went good . Put stone on the side of my garage for parking my truck. I will have him come back for other things to be done"

+173

18 neighbors recently requested a quote

Recommended by67%of homeowners

Retaining Wall - Install

Serving Prattsburgh, NY and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Meyers Contracting is top of the line. Very professional, with an amazing results! You will not be disappointed…I recommend"

+18

Recommended by100%of homeowners

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Briggs Concrete, Inc.

4.5(

)

Retaining Wall - Install

Serving Prattsburgh, NY and surrounding areas

In business since 1999

Free estimates

Credit card accepted

"Wonderful job ,Mr. Briggs is a very hard worker, He does a marvelous job, We recommend him to anyone, you will not be disappointed!!!! Scott put in a concrete driveway and a gorgeous stamped patio. He has made our house beautiful., and I for one thank him so very much. We have received many compliments on his hard work .Great price for a great job!!!!"

Recommended by100%of homeowners

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Baskent Daybreak, Inc.

0.0(

)

Retaining Wall - Install

Serving Prattsburgh, NY and surrounding areas

In business since 1992

Baskent Daybreak, Inc. is a client-focused company that strives to insure the highest level of customer satisfaction.

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Poured Walls

New to Angi

Retaining Wall - Install

Serving Prattsburgh, NY and surrounding areas

In business since 1995

Free estimates

Credit card accepted

Poured Walls has over 30 years experience doing poured foundation in and around Painted Post. We take extreme pride in every project we take on and guarantee customer satisfaction. Give us a call today for a free estimate.

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Farr Construction Co.

New to Angi

Retaining Wall - Install

Serving Prattsburgh, NY and surrounding areas

In business since 1985

Free estimates

Farr Construction Co is a full service concierge construction firm providing leading edge design and custom building for the residential and commercial sectors. At Farr Construction Co., we offer a full menu of services to meet the specific needs of each of our valued clients. Excellent craftsmanship, communication and quality are yours and just a phone call away. So call today!

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Frazier Concrete

New to Angi

Retaining Wall - Install

Serving Prattsburgh, NY and surrounding areas

In business since 2020

Free estimates

Offers commercial services

Hard work 10 years experience

Retaining Wall - Install

Serving Prattsburgh, NY and surrounding areas

In business since 1980

Free estimates

You will be very pleased with our services. We strive to provide an affordable service in a timely manner. We are a credible company that you know you can trust! Call us today!

Recommended by33%of homeowners

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Showing 1-10 of 23

Retaining Wall Installers questions, 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.

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.

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.

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.

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.

The Prattsburgh, NY 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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Haley Nothstein
•
Aug 3, 2026Aug 3, 2026
How Much Does a Retaining Wall Cost to Build? [2026 Data]
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•
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How Much Does a Concrete Retaining Wall Cost? [2026 Data]
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Jul 9, 2026Jul 9, 2026
How Much Do Retaining Wall Repairs Cost? [2026 Data]
Retaining wall repair cost can vary widely based on the age and condition of the wall being restored. Learn why finding the right pro is important for getting the job done.
Christopher Murray
•
Jul 9, 2026Jul 9, 2026
Who to Hire to Build a Retaining Wall: A Complete Guide
While it’s possible to DIY build a retaining wall, several pros have advanced knowledge of hardscaping and building. Learn who to hire to build a retaining wall.
Ginny Bartolone
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Jul 9, 2026Jul 9, 2026
20 Retaining Wall Ideas for Your Yard
There is no one-size-fits-all retaining wall for your yard. In fact, the options are endless. Check out 20 retaining wall ideas to upgrade your hardscape.
Angi
•
Aug 19, 2026Aug 19, 2026
Wood Retaining Wall Installation: Everything You Need to Know
Stop soil erosion with a wood retaining wall installation. Learn about timber costs, warning signs, and how to hire a local retaining wall builder.