Top-rated retaining wall installation pros.

Get matched with top retaining wall installation pros in Merrimack, NH

There are 14 highly-rated local retaining wall installation pros.

Need a pro for your retaining wall installation project in Merrimack, NH?

Select your specific project to find the pro for you.

TRUSTED BY MERRIMACK, NH HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon243
    Verified retaining wall installation services reviews

Find Retaining wall installation pros in Merrimack

Avatar for Landim Masonary and cleaning LLC.

Landim Masonary and cleaning LLC.

5.00(
18
)
Approved Pro

Landim Masonary and cleaning LLC.

5.00(
18
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 local quotes requested

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"Daniel with Landim Masonry estimated showed samples and completed the job within a week or so of confirming we wanted to move forward. I could not be happier with my new walkway, it looks amazing. Great workers."

Julie W on October 2025

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"Daniel with Landim Masonry estimated showed samples and completed the job within a week or so of confirming we wanted to move forward. I could not be happier with my new walkway, it looks amazing. Great workers."

Julie W on October 2025


Avatar for I'Mconstruction

I'Mconstruction

35 Oregon Ave
5.00(
14
)
Approved Pro

I'Mconstruction

35 Oregon Ave
5.00(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
40 local quotes requested

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"Great work, very professional."

Denise A on August 2025

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"Great work, very professional."

Denise A on August 2025


Avatar for E&J HARDSCAPING & LANDSCAPING INC.

E&J HARDSCAPING & LANDSCAPING INC.

56 Newburyport Turnpike
5.00(
17
)
Approved Pro

E&J HARDSCAPING & LANDSCAPING INC.

56 Newburyport Turnpike
5.00(
17
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
118 local quotes requested

We pride ourselves on delivering the highest quality workmanship with professionalism and respect on every project. Specializing in all phases of commercial and residential hardscaping and landscaping—including patios, retaining walls, walkways, lawn care, and seasonal cleanups—we are dedicated to achieving exceptional results with a focus on precision and durability. Beyond construction, we are committed to supporting and serving our local community. We look forward to bringing your outdoor vision to life.

"Very good and excellent professional with a pleasant attitude and friendly for you budget and large and small project"

Raymond O on September 2025

We pride ourselves on delivering the highest quality workmanship with professionalism and respect on every project. Specializing in all phases of commercial and residential hardscaping and landscaping—including patios, retaining walls, walkways, lawn care, and seasonal cleanups—we are dedicated to achieving exceptional results with a focus on precision and durability. Beyond construction, we are committed to supporting and serving our local community. We look forward to bringing your outdoor vision to life.

"Very good and excellent professional with a pleasant attitude and friendly for you budget and large and small project"

Raymond O on September 2025


Avatar for SALMON FALLS NURSERY

SALMON FALLS NURSERY

511 PORTLAND ST
3.00(
1
)
Approved Pro

SALMON FALLS NURSERY

511 PORTLAND ST
3.00(
1
)
Approved Pro
Customers say: True professional
59 local quotes requested
47 years of experience

For over 40 years, Northern New Englanders have trusted Salmon Falls Nursery & Landscaping to personalize the look and function of their landscape. We specialize in the design and installation of landscape gardens and hardscapes for residential and commercial clients. In addition, we offer design and commercial landscape maintenance. We strive to earn your business in everything we do. Your beautiful, finished landscape is the result of our extensive expertise and Yankee work ethic, delivered by the friendliest staff in the business. Many of the trees and shrubs we install come from our own 200-acre Nursery in Berwick, Maine. We invite you to spend some time getting to know our work and reputation. Whatever your vision for your landscape, all of us at Salmon Falls are committed to making it a reality.

For over 40 years, Northern New Englanders have trusted Salmon Falls Nursery & Landscaping to personalize the look and function of their landscape. We specialize in the design and installation of landscape gardens and hardscapes for residential and commercial clients. In addition, we offer design and commercial landscape maintenance. We strive to earn your business in everything we do. Your beautiful, finished landscape is the result of our extensive expertise and Yankee work ethic, delivered by the friendliest staff in the business. Many of the trees and shrubs we install come from our own 200-acre Nursery in Berwick, Maine. We invite you to spend some time getting to know our work and reputation. Whatever your vision for your landscape, all of us at Salmon Falls are committed to making it a reality.


K J A S Tree Services

4.97(
29
)
Approved Pro

K J A S Tree Services

4.97(
29
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
128 local quotes requested

As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"This company was the first to respond to my request, provided a quote and was able to perform the service within two days of my request. They were fast, efficient, and ready and willing to work."

DONNA C on October 2025

As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"This company was the first to respond to my request, provided a quote and was able to perform the service within two days of my request. They were fast, efficient, and ready and willing to work."

DONNA C on October 2025


"Everything was done on time and quicker than I thought possible."

Tom D on April 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Everything was done on time and quicker than I thought possible."

Tom D on April 2025


Avatar for Greenleafs Garden Design

Greenleafs Garden Design

382 Dunstable Rd
4.83(
197
)
Approved Pro

Greenleafs Garden Design

382 Dunstable Rd
4.83(
197
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
29 local quotes requested

We Specialize in Garden Consulting, Design and Maintenance within 45 miles of Tyngsboro Massachusetts. We provide: Garden Consulting and Design Garden Installation: Your Design or Greenleaf’s Planting of Annuals, Perennials and Trees Mulching and Edging Weeding Drip Irrigation Low Impact Machine Work (with a Toro Dingo which is half the size of a Bobcat) Arborist Consulting Tree Health Assessments Pruning of Shrubs and Small Trees Less than 9 feet tall Our goal for is connecting the clients with their perfect garden. The important listening skills in gardening are hearing what the client desires and analyzing what their unique environment can support. We will then create a design that weaves the specific conditions together with plants that will thrive. Greenleaf’s Garden Design is dedicated to working in tandem with nature. When there are existing gems in your yard, our goal is to create a plan to incorporate those with a gardener and certified arborist’s eye.

"Rich did a great job with our garden design and follow-through. I had originally wanted to just get a quote for budgeting purposes but decided to accept his quote to do the garden install in the fall. He was very conscientious about early frost and had made a visit to apply some spray to reduce the impact of frost in late fall. He then made a trip up in the spring to check on the status of our plants to see if any plants needed to be replaced. I also had a problem with ferns growing out of control. Rich installed a barrier to keep the ferns within the area we wanted it to stay. All in all, I am very happy with what he has done and expect to use his services more in the future."

Glen N on May 2025

We Specialize in Garden Consulting, Design and Maintenance within 45 miles of Tyngsboro Massachusetts. We provide: Garden Consulting and Design Garden Installation: Your Design or Greenleaf’s Planting of Annuals, Perennials and Trees Mulching and Edging Weeding Drip Irrigation Low Impact Machine Work (with a Toro Dingo which is half the size of a Bobcat) Arborist Consulting Tree Health Assessments Pruning of Shrubs and Small Trees Less than 9 feet tall Our goal for is connecting the clients with their perfect garden. The important listening skills in gardening are hearing what the client desires and analyzing what their unique environment can support. We will then create a design that weaves the specific conditions together with plants that will thrive. Greenleaf’s Garden Design is dedicated to working in tandem with nature. When there are existing gems in your yard, our goal is to create a plan to incorporate those with a gardener and certified arborist’s eye.

"Rich did a great job with our garden design and follow-through. I had originally wanted to just get a quote for budgeting purposes but decided to accept his quote to do the garden install in the fall. He was very conscientious about early frost and had made a visit to apply some spray to reduce the impact of frost in late fall. He then made a trip up in the spring to check on the status of our plants to see if any plants needed to be replaced. I also had a problem with ferns growing out of control. Rich installed a barrier to keep the ferns within the area we wanted it to stay. All in all, I am very happy with what he has done and expect to use his services more in the future."

Glen N on May 2025


Avatar for HEBB EXCAVATION SERVICES

HEBB EXCAVATION SERVICES

42 Main Street
New on AngiNew on Angi
Approved Pro

HEBB EXCAVATION SERVICES

42 Main Street
New on AngiNew on Angi
Approved Pro
1 years of experience
Free onsite estimate

We are dedicated to providing our clients with the very best in excavation and building site services. We specialize in residential and commercial services and take pride in the attention to detail put into each of the projects we are involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

We are dedicated to providing our clients with the very best in excavation and building site services. We specialize in residential and commercial services and take pride in the attention to detail put into each of the projects we are involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.


Jim's Masonry and Home Improvements

16 Gordon Ave
4.90(
15
)
Approved Pro

Jim's Masonry and Home Improvements

16 Gordon Ave
4.90(
15
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 local quotes requested

We are a locally owned and operated company that values honesty, integrity and treats your home as if it were our own. We specialize in windows. Our services are customized to the individual project, paying close attention to the details of each project that we are involved with. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"Jim & his crew did a great job preparing a base for a 13 ft swim spa . Would recommend to anybody."

Jim M on May 2024

We are a locally owned and operated company that values honesty, integrity and treats your home as if it were our own. We specialize in windows. Our services are customized to the individual project, paying close attention to the details of each project that we are involved with. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"Jim & his crew did a great job preparing a base for a 13 ft swim spa . Would recommend to anybody."

Jim M on May 2024


Avatar for NH Dirt

NH Dirt

168 River Rd
New on AngiNew on Angi
Approved Pro

NH Dirt

168 River Rd
New on AngiNew on Angi
Approved Pro
5 years of experience
Free onsite estimate

"We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at NH Dirt LLC strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction."

"We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at NH Dirt LLC strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction."

...
Showing 1-10 of 226
Retaining Wall Installers questions, 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.

Through proper drainage solutions and compacting the foundation soil.

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.

Poured concrete is likely the cheapest way to build a retaining wall, as this material costs anywhere from $6 to $8 per square foot. The next best budget-friendly option is to use landscaping timbers. These timbers are great for DIY projects, as they don’t require tools to successfully build a retaining wall. Landscape timber costs around $10 to $14 per square foot. Depending on your chosen garden style, you can also go with natural stones or concrete blocks. Natural stones can be expensive if you buy them, but they’re a lot less costly if you can source them from your property. 

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.

The Merrimack, NH homeowners’ guide to retaining wall installation services

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