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 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
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

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


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
125 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


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
39 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 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
30 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 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
60 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.


"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 225
Retaining Wall Installers questions, answered by experts

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.

Vinyl retaining walls are often the least expensive type of retaining wall, at $10 to $15 per square foot. This budget-friendly material is lightweight and durable, but it doesn’t have many decorative options. Untreated timber and railroad ties are the next step up, and start at $15 to $25 per square foot, respectively. High-end steel or natural stone tend to be the least wallet-friendly, but they’re extremely durable and come with a high-end look.

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.

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 lifespan of a retaining wall varies based on its particular material, whether it was properly installed, how well it’s maintained, and your local climate. Concrete, stone, and brick retaining walls last the longest, with concrete lasting between 50 and 100 years on average. Brick tends to last the longest, with a minimum of one century, under the right conditions. 

Timber retaining walls can start to deteriorate at 20 years, depending on the wood quality, but in the best case, they can last 40 years. Pressure-treated wood retaining walls last 30 years on average.

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.

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"