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Q: What happens if you don't backfill a retaining wall?

• <div><p>If you don&rsquo;t backfill a retaining wall&mdash;either at all or adequately enough&mdash;the wall won&rsquo;t drain well, and water will be able to pass through it. Poor drainage will lead to a warped wall or a buildup of hydrostatic pressure, which can eventually collapse your retaining wall. If you have particularly sloped land, consult a structural engineer to ensure your <a href="https://www.angi.com/articles/hardscape-features-bring-value-landscape.htm">hardscaping is adding value to your home</a>.</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>

Q: Do you need a permit for a retaining wall?

• <div><p>Yes, to build a retaining wall, a permit is required. Similarly, any repairs or modifications to an existing retaining wall require permits. If the planned wall measures higher than 4 feet, most municipalities require designs and permits come through a licensed engineer. In some locations, if the wall is shorter than 4 feet, a permit may not be required. For the requirements in your area, contact your local government.</p></div>

Q: How long will a railroad tie wall last?

• <div><p>Most railroad tie retaining walls have a life span of <b>20 to 30 years</b>, though you may need to replace your wall sooner if it&rsquo;s repeatedly exposed to heavy rain, runoff, and excess moisture. Railroad ties are typically treated with creosote, which makes them much more durable than untreated wood. Though they last longer, they don&rsquo;t last forever. For the most longevity, make sure your retaining wall has a sturdy base and steel reinforcements. You should also install drainage to direct water away from the wall.</p></div>

Q: Are railroad ties good for retaining walls?

• <div><p>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&rsquo;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&rsquo;s treated with an EPA-approved preservative or a wood-alternative composite material.</p></div>

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Verified Reviews for Retaining Wall Installation pros in Shenandoah, IA

*The Angi rating for Retaining Wall Installation companies in Shenandoah, IA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Retaining Wall Installation needs.

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Last update on November 01, 2025

Reviewed in May 2025
Installed new LVP flooring, along with new trim. Completed when he said he would, work looked great! Also installed a front door!
Savage Renovations, LLC
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Reviewed in December 2024
Great customer service Fast installation Affordable service Skyline tore off and re did the asphalt roof on my house after wind and hail damage. I was so impressed I hired them to also do my garage and shed. These guys do great work.
SKYLINE RESTORATION INC
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Reviewed in December 2023
Jon, Ler and Emanuel L were the crew who installed 5 piers on the corner of my house. They were very efficient, and left things looking exactly as before they did the job. I received updates as their work progressed.
Groundworks
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Reviewed in October 2023
My mom needed an 86 inch TV mounted to the wall. If you are looking for someone who is professional, prompt, communicative, knowledgeable and has great rates- Omer is your man. We will definitely be using him again!
Smart Homes Security and IT Services
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Reviewed in June 2023
David was personable, prompt, and precise in his installing of a deadbolt and door knob. I would hire him for other work, as well! 5/5
David J. Soukup Construction, Inc.
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Reviewed in November 2022
The windows are awesome! I can see out now and clean easily! The installers were kind and efficient. Their carpentry skills are top-notch!
Renewal by Andersen
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Reviewed in September 2022
The installer did a very good job. The only hang up was the bracket for my shower seat. The package was labeled for a right side bracket, but a left side bracket was inside the page. It was mislabeled at the warehouse. Certainly not the installers fault. Bath Planet scheduled a time to come...
Bath Planet
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Reviewed in May 2017
Everything went well. Installation and adaptation to my existing ducts was exactly as I wanted it. The price seemed high, but they were actually the lowest of 3 local bids.
C AND K Heating, Cooling & Plumbing
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Reviewed in May 2014
Our first interaction with our point of contact went well. We were given lots of information in both oral and written form. Sales person was not pushy and was very prompt with his estimates. We accepted the proposal, scheduled an installation date, andproceeded to have the system installed. The...
Neighbors Heating Cooling Plumbing & Geothermal
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Reviewed in February 2014
Sat with him to plan the bathroom, and work out what we wanted. Double Sink, Tub surround & shower done in blue ONYX. REASONS FOR BAD REVIEW: 1) Measurement of bath room was measured wrong, Not allowing for new 1/2" wallboard being installed. 2) Different Decals on sink bowls were put in...
Cabinets By Stac
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Retaining Wall Installation

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EMRGE Landscape

EMRGE Landscape

K&M Exteriors LLC

K&M Exteriors LLC

Farm2Fork Hired Hands

Farm2Fork Hired Hands

Wyatt Construct

Wyatt Construct

SportzTurf

SportzTurf

HBC

HBC

Zed Construction

Zed Construction

Cuttin' it Close

Cuttin' it Close

Benitez landscaping and lawns

Benitez landscaping and lawns

Jeff's Lawn Care

Jeff's Lawn Care

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