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MountainScapes Landscape Construction, LLC - Retaining Wall Construction in Nashua, NH

MountainScapes Landscape Construction, LLC

★ ★ ★ ★ ★ 4.9 (8 reviews)

Nashua, NH 03060

5 projects

MountainScapes Landscape Construction, LLC is New England's leading contractor specializing in fiberglass and Gunite swimming pools. We are your trusted partner for custom swimming pool design, excava...

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Lanzillo Landscaping

★ ★ ★ ★ ★ 4.7 (3 reviews)

Salem, NH 03079

Lanzillo Landscaping: Bringing Care and Expertise to your Outdoor Spaces Here at Lanzillo Landscaping, we believe that your space is a part of your home, and should be beautiful and functional. Proudl...

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En Gannim

★ ★ ★ ★ ★ 4.7 (3 reviews)

Bedford, NH 03110

The Industry Leader In Landscaping In Southern New Hampshire | En Gannim En Gannim, your outdoor is a landscape where your personality inspires the elegance of your property. Landscaping and Property...

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Lightning Landscape, Inc. - Retaining Wall Construction in Pelham, NH

Lightning Landscape, Inc.

★ ★ ★ ★ ☆ 3.7 (3 reviews)

Pelham, NH 03076

3 projects

Lightning Landscape do it all and are engaged in everything from site preparation, irrigation and hardscape design, planting, hydro seeding, sod installation, mulching and integrated property maintena...

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Northern Lights Landscape - Retaining Wall Construction in Milford, NH

Northern Lights Landscape

★ ★ ★ ★ ★ 4.5 (2 reviews)

Milford, NH 03055

17 projects

For nearly 20-years Northern Lights has been your trusted partner for expert landscape design and installation in the Greater New Hampshire region. Reinventing every landscaping need, our certified pr...

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Kingsbury Landscape & Design LLC - Retaining Wall Construction in Laconia, NH

Kingsbury Landscape & Design LLC

★ ★ ★ ★ ★ 4.5 (2 reviews)

Laconia, NH

1 project

We are experts at a wide variety of landscaping skills. Our approach is that there are no two landscapes alike, and so we offer every client a custom tailored program to suit each landscapes needs. We...

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DJ Landscaping - Retaining Wall Construction in Derry, NH

DJ Landscaping

★ ★ ★ ★ ☆ 3.5 (2 reviews)

Derry, NH 03038

2 projects

DJ Landscaping: The Answer to Your Outdoor Oasis DJ Landscaping – At dj landscaping, we believe that your garden is an extension of your home, which is why we want to transform it into a beautiful oas...

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Design Works - Landscape Architecture & Const. - Retaining Wall Construction in Hudson, NH

Design Works - Landscape Architecture & Const.

★ ★ ★ ★ ★ 5.0 (1 review)

Hudson, NH 03051

35 projects

Design Works is a New Hampshire Landscape Design AND Build Firm focusing on professionalism, artistry through design, quality craftsmanship, and satisfaction for our southern NH and northern Mass. We...

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Tasker Landscaping - Retaining Wall Construction in Loudon, NH

Tasker Landscaping

★ ★ ★ ★ ★ 5.0 (1 review)

Loudon, NH 03307

9 projects

At Tasker Landscaping, LLC, we specialize in landscaping. You come with the idea of what you need for your space, and we will do the other half. We know precisely how to actually design but how furthe...

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Properties By Pete - Retaining Wall Construction in Belmont, NH

Properties By Pete

★ ★ ★ ★ ★ 5.0 (1 review)

Belmont, NH 03220

5 projects

Properties by Pete stands for creatively designing and installing landscapes. We aim to deliver our customer a great and cozy feel for his property. I am Peter De Vivo of a landscape company called Pr...

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Verified Reviews for Retaining Wall Construction pros in Portsmouth, NH

*The Growcycle rating for Retaining Wall Construction companies in Portsmouth, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Retaining Wall Construction needs.

Last update on July 10, 2026

Matthew Collins

Reviewed in August 2024

The team transformed our backyard with a stunning custom fire pit and elegant paver patio. Their attention to detail and professionalism were top-notch!

En Gannim Request a quote

John Baldwin

Reviewed in January 2026

Our new pool and hot tub are stunning! The team was professional and attentive to our needs. Highly recommend for any outdoor project!

MountainScapes Landscape Construction, LLC Request a quote

Ethan Parker

Reviewed in July 2024

Their team did an amazing job with the hedge trimming and tree pruning in my Lowell backyard. The crew was efficient and left everything looking pristine and tidy.

Lanzillo Landscaping Request a quote

Matthew Collins

Reviewed in September 2024

The team transformed our backyard with stunning drought-tolerant landscaping and efficient irrigation. Slight delay, but the vibrant results were worth it!

Lightning Landscape, Inc. Request a quote

James Anderson

Reviewed in February 2024

Northern Lights Landscape transformed our backyard in Nashua with a stunning custom fire pit and beautifully landscaped garden. Their attention to detail was impressive!

Northern Lights Landscape Request a quote

Cost Guide

How much does Retaining Wall Construction cost in Portsmouth, NH?

Typical retaining wall construction projects in Portsmouth, NH range from $2,500 to $7,500, with most homeowners paying around $4,000.

$2,500

$4,000 Typical cost in Portsmouth, NH

$7,500

LOWHIGH

Prices vary by project scope, materials, and local labor rates.

Per Sq Ft $15–$30

Per Ton of Stone $100–$200

Per Linear Ft $50–$100

Last updated: April 2026

Retaining wall construction in Portsmouth, NH typically costs between $2,500 and $7,500, with an average price of about $4,000. Factors influencing these costs include the type of materials selected, wall height, and site accessibility.

Portsmouth contractors usually charge between $50 and $100 per hour for labor, depending on their expertise and the project's complexity. Most projects require a permit from the Portsmouth Department of Public Works, which can take a few weeks to process and may incur fees of $50 to $150.

When comparing quotes from Portsmouth contractors, it is vital to ensure that you are comparing similar types of materials and workmanship. Ask for detailed estimates that outline labor, materials, and any additional costs.

When comparing retaining wall construction quotes in Portsmouth, ensure that each quote includes a detailed breakdown of materials and labor to make an accurate comparison.

What affects the cost in Portsmouth, NH?

Portsmouth Labor Rates

Licensed retaining wall contractors in Portsmouth charge $50–$100/hr. These rates reflect the local demand for skilled labor and the experience level of the contractors.

Permits & Inspections

Most significant retaining wall work in Portsmouth requires permits from the Portsmouth Department of Public Works. These permits ensure that the construction meets local codes and regulations.

Material Selection & Quality

Material choice can swing a retaining wall project by 15–30%. Using premium stone or reinforced materials can increase longevity but also the overall costs.

Seasonal Demand & Scheduling

Spring and early summer are peak times for retaining wall projects in Portsmouth, making it advisable to book early to secure the best rates and availability.

Frequently Asked Questions About Retaining Wall Construction in Portsmouth, NH

Do I need a permit to build a retaining wall in Portsmouth?

Yes, in Portsmouth, you typically need a permit to construct a retaining wall, especially if it exceeds a certain height or is located near property lines. Local regulations are in place to ensure the safety and structural integrity of retaining walls, particularly due to the area's unique topography and potential for erosion. It’s advisable to check with the Portsmouth city planning department or consult with a professional contractor who can guide you through the permitting process. They can help ensure compliance with all local laws, which can save you time and prevent potential fines later on.

How do I know if I need a retaining wall?

If you have a sloped yard or erosion issues in Portsmouth, a retaining wall may be necessary to prevent soil displacement and manage water runoff. Signs that you might need a retaining wall include visible erosion, pooling water in your yard, or difficulty maintaining landscape features on a slope. Retaining walls can help create level areas for gardening, patios, or lawns, enhancing both functionality and aesthetics. It's advisable to consult with a local contractor who understands the specific landscape challenges in Portsmouth, as they can assess your property and recommend the best solution tailored to your needs and local regulations.

How long does it take to build a retaining wall in Portsmouth?

The timeframe for building a retaining wall in Portsmouth can vary based on several factors, including the size of the wall, the materials used, and weather conditions. Generally, a small to medium-sized retaining wall can be completed within a few days to a week, while larger and more complex walls may take several weeks. Preparation work, such as excavation and drainage installation, can extend the timeline. It’s essential to work with a local contractor who is familiar with Portsmouth's specific regulations and soil conditions to ensure a timely and efficient build. Always discuss the timeline with your contractor upfront to set realistic expectations.

What is the average cost of retaining wall construction in Portsmouth?

The cost of retaining wall construction in Portsmouth can vary significantly based on materials, height, length, and site conditions. Generally, homeowners can expect to pay between $15 to $50 per square foot, including labor and materials. Factors such as the complexity of the site, the type of materials chosen, and any necessary permits can all influence the final price. It's a good idea to obtain multiple quotes from local contractors to ensure you get a fair price. Additionally, consider the long-term benefits of investing in a quality retaining wall to prevent erosion and enhance your property's value, especially in a community like Portsmouth where outdoor spaces are highly valued.

What materials are best for retaining wall construction in Portsmouth?

In Portsmouth, the most common materials for retaining wall construction include concrete blocks, natural stone, and timber. Each material has its unique benefits depending on your project needs and aesthetic preferences. Concrete blocks are durable and offer a modern look, while natural stone provides a classic, earthy appeal that blends well with the coastal environment. Timber can be a more cost-effective choice but may require more maintenance over time. Consider local climate conditions, as Portsmouth experiences cold winters and wet springs, which can affect the longevity and durability of your chosen material. Additionally, it's important to consult with a professional to ensure proper drainage and structural stability, particularly given Portsmouth's soil conditions.

Common Retaining Wall Construction services and their costs

Typical pricing in Portsmouth, NH by service type.

Basic Installation

Standard wall construction services

Method	Cost Range
Gravity Wall A freestanding wall using its weight to resist pressure.	$2,500–$5,000
Cantilevered Wall A wall that uses a footing to provide stability.	$3,000–$6,000
Sheet Piling Wall Utilizes sheets of material driven into the ground.	$4,000–$7,000
Reinforced Block Wall Block walls reinforced with steel for added strength.	$3,500–$6,500

Add-On Services

Additional services for enhanced functionality

Method	Cost Range
Drainage Installation Installing drainage to prevent water buildup.	$1,000–$2,500
Lighting Installation Adding lights for aesthetics and safety.	$500–$1,500
Soil Grading Preparing the ground before wall installation.	$800–$1,500
Landscaping Around Wall Enhancing the look with plants and features.	$1,000–$3,000

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Price ranges are estimates compiled from publicly available data and may vary with project scope.

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Verified Reviews for Retaining Wall Construction pros in Portsmouth, NH

Matthew Collins

John Baldwin

Ethan Parker

Matthew Collins

James Anderson

How much does Retaining Wall Construction cost in Portsmouth, NH?

What affects the cost in Portsmouth, NH?

Frequently Asked Questions About Retaining Wall Construction in Portsmouth, NH

Common Retaining Wall Construction services and their costs

Basic Installation

Add-On Services

Find Retaining Wall Construction Pros in other cities near you

Related services for your Retaining Wall Construction project

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