Top-rated retaining wall installation pros.

Best retaining wall installation pros near Harmony, PA

Enter your zip and get matched with up to 5 pros

Need a pro for your retaining wall installation project in Harmony, PA?

Select your specific project to find the pro for you.

TRUSTED BY HARMONY, PA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon56
    Verified retaining wall installation services reviews

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

Avatar for NGI Elite Construction, LLC
NGI Elite Construction, LLC
4.5(
43
)
Retaining Wall - Install

Serving Harmony, PA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"NGI is awesome they built a two tier deck for me and my family. There professional from the owner of the company to the forman to the worker was all top notch. They made are dream deck and couldn't be happier."
Treated Lumber Deck
Veka Vinyl Deck
Decorative Retaining Wall
Double Picture Frame & Top Rail
Treated Lumber Deck W/Privacy Fence

+8

Response time9 hrs
Response rate88%
9 neighbors recently requested a quote
Avatar for Daily Landscaping
Daily Landscaping
3.7(
22
)
Retaining Wall - Install

Serving Harmony, PA and surrounding areas

Approved

Free estimates

Emergency services offered

Credit card accepted

"It went great! The work was completed as scheduled and the service team was friendly, polite, professional, knowledgable and accommodating with my specific requests. I would hire them again and again!"
Landscaping Project
Landscaping Project
Landscaping Project
Landscaping Project
Additional Photos

+5

Response time4 days
4 neighbors recently requested a quote
Recommended by52%of homeowners
Avatar for Neel Outdoor Works LLC
Neel Outdoor Works LLC
5.0(
5
)
Retaining Wall - Install

Serving Harmony, PA and surrounding areas

Approved

In business since 2024

Free estimates

Offers commercial services

"These guys are amazing!! The crew that came to do the work at my house were punctual, knowledgeable and efficient. I hired Neel Outdoor Works to install a brick wall and platform for a wood burner and my experience couldn’t have been better. The timelines for material drop off and execution were not only upheld, but were also communicated clearly which has been hard to find dealing with contractors. When the crew arrived to do the work they were able to explain everything that was happening, how long it would take, and precautions to take while the components cured. They finished ahead of schedule and cleaned up so well that it didn’t look like anyone had been there. These guys are absolute professionals in all aspects and I will recommend them to anyone that needs work done."
Watson Underpin
Watson Underpin
Watson Underpin
Watson Underpin
Watson Underpin

+11

Response time8 hrs
Response rate100%
1 neighbors recently requested a quote
NTK Excavation LLC
5.0(
5
)
Retaining Wall - Install

Serving Harmony, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Customers say: True professional

"Owner showed up with a small crew and a crazy new piece of equipment. Excavated down below my foundation and to the septic tank. Came into the basement and jackhammered the floor. Removed all the old terracotta pipe inside and out. Installed all new PVC pipe all the way down to the septic tank. Put gravel down to protect the new pipe. Poured concrete in the basement to close the floor back up. Only took one day to get the new pipe in. Came back the next to close the ground and floor up. Great experience, basement no longer smell like sewage."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+21

4 neighbors recently requested a quote
Recommended by60%of homeowners
Avatar for The Grounds Guys of Wexford
The Grounds Guys of Wexford
3.8(
51
)
Retaining Wall - Install

Serving Harmony, PA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Honesty of the owner that I dealt with. He was straight forward, didn't try to sell more services that were needed. Trustworthy, felt very comfortable doing work with them. The quality of the work was outstanding."
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Kahoalii Koncrete
Kahoalii Koncrete
4.3(
24
)
Retaining Wall - Install

Serving Harmony, PA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Joseph is very professional, and has helped me for my various locations,. I wish he would come back to Eureka. Anyone whom will use their service will be satisfied."
Deck and stamped concrete
Deck and stamped concrete
Stamped patio
Building slab
Building slab

+3

4 neighbors recently requested a quote
Recommended by72%of homeowners
Brandon Hoffman
4.5(
13
)
Retaining Wall - Install

Serving Harmony, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Small jobs welcome

"Brandon and his team showed up day to start the work a few days before I asked them to begin which was a plus because our concrete church ramp needed repaired soon for safety reasons. The work was completed with professionalism and did not interfere with our church services. Brandon was also easy to contact and returned calls and text messages in a timely manner"
Concrete construction
Concrete construction
Concrete construction
Concrete construction
Concrete construction

+94

Response time1 day
Response rate93%
23 neighbors recently requested a quote
Avatar for Wallstructures LLC
Wallstructures LLC
4.8(
26
)
Retaining Wall - Install

Serving Harmony, PA and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"The owner takes exceptional pride in his work. The finished project, a retaining wall and replacement of a wooden deck with a patio using Beacon Hill pavers is outstanding. Would hire them again for similar projects in a heartbeat."
Pavers and Hardscaping Project
Pavers and Hardscaping Project
Additional Photos
Additional Photos
Additional Photos

+24

Recommended by100%of homeowners
...
Showing 1-10 of 70
Retaining Wall Installers FAQs, answered by experts

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’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’s treated with an EPA-approved preservative or a wood-alternative composite material.

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.

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.

Most railroad tie retaining walls have a life span of 20 to 30 years, though you may need to replace your wall sooner if it’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’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.

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.

The Harmony, PA homeowners’ guide to retaining wall installation services

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