Retaining Wall Contractor in Duluth, MN

Gray concrete retaining wall alongside a paved path and grass.
Gray concrete wall composed of interlocking square tiles.

Functional Strength Meets Natural Beauty

Retaining walls are essential for both structure and style. Whether you need to manage sloped terrain, control erosion, or create terraced landscaping, a well-built retaining wall provides critical support and long-term durability—while adding visual appeal to your property.


At Stone Forge LLC, we design and construct custom stone and block retaining walls for homes and properties across Duluth and the surrounding area. With over two decades of experience, we blend engineering precision with artistic masonry to deliver walls that hold back soil and stand the test of time within your landscape.

Why Retaining Walls Matter

In Minnesota’s hilly, often water-saturated terrain, retaining walls are more than decorative—they’re a necessity. A properly built wall can:

  • Prevent soil erosion
  • Redirect runoff and drainage
  • Stabilize hillsides or uneven ground
  • Create level areas for patios, gardens, or driveways
  • Define outdoor spaces with attractive structure
  • Increase usable yard space on sloped lots

Poorly constructed walls fail under pressure, especially during winter freeze-thaw cycles. That’s why professional installation and solid footing are essential.

Our Retaining Wall Services

We offer full-service retaining wall design, installation, and replacement using high-quality stone and block materials. Our process includes everything from site assessment to excavation, drainage solutions, base prep, wall construction, and finishing.

Natural Stone Retaining Walls

Built with real fieldstone or cut stone, these walls offer a timeless, organic look ideal for landscape integration. No two stones are alike, giving your project a custom appearance that blends seamlessly with the surrounding environment.

Natural stone is perfect for:

  • Garden borders
  • Tiered walls and terracing
  • Rustic or traditional-style properties
  • Custom seating walls and accent features

Segmental Block Retaining Walls

Segmental walls use engineered concrete blocks designed to lock into place and support heavy loads. These systems are durable, cost-effective, and ideal for retaining taller grades or supporting hardscape features.


We use leading block products in a range of textures and colors for:

  • Driveway and foundation support
  • Multi-level terraces
  • Stairs integrated into walls
  • Structural soil retention on steep slopes

We follow ICPI and NCMA installation standards to ensure performance, drainage, and wall stability for years to come.

Boulder and Dry Stack Walls

For a more natural, informal style, we also build dry stack walls with large native boulders or flat stones. These walls work beautifully in woodland settings or as part of water-smart landscapes.

Integrated Wall Design

Our retaining walls don’t exist in isolation—they’re designed to complement your property and integrate with your landscape. We often combine walls with other hardscape elements such as:

  • Patios and paver systems
  • Outdoor kitchens and fire pits
  • Walkways and steps
  • Garden beds and planters
  • Drainage and grading solutions

Our goal is to create a functional, cohesive outdoor environment that enhances the way you use your yard.

Our Process

  1. Site Evaluation - We assess soil conditions, slope, and water flow to determine the best design and placement.
  2. Design & Materials Selection - We guide you through options for stone or block materials, wall height, and integrated features.
  3. Excavation & Base Prep - A stable foundation is critical. We excavate, compact, and install a proper gravel base with filter fabric.
  4. Drainage Integration - We include backfill, weep holes, and drainage pipes to manage moisture and relieve pressure behind the wall.
  5. Wall Construction - Our skilled masons install each course with precision—aligning, leveling, and securing each block or stone.
  6. Finishing Touches - We add caps, stairs, or decorative elements as needed and clean the site thoroughly upon completion.

Why Choose Stone Forge?

When it comes to retaining walls, quality matters—from the footings to the final stone. Stone Forge LLC delivers walls that are as structurally sound as they are visually impressive.


Clients across Duluth and beyond trust us because we offer:

  • Over 20 years of masonry and hardscape experience
  • Knowledge of local soil and weather conditions
  • Proper drainage and wall engineering
  • Clean, professional job sites
  • Honest timelines and transparent pricing
  • Walls that last and look great doing it


We’ve worked on everything from modest garden terraces to large-scale grade retention projects. No matter the size or slope, we bring the same level of care and craftsmanship to every job.

Gray concrete retaining wall with geometric block patterns against a cloudy sky.
Close-up of a gray concrete block retaining wall. Angled view shows textured surface and seams.

Service Area

We provide retaining wall services throughout the Northland, including:

  • Duluth, MN
  • Hermantown
  • Proctor
  • Cloquet
  • Two Harbors
  • Rice Lake
  • Superior, WI

We proudly serve clients within an 80-mile radius of our Duluth headquarters.

Request a Free Retaining Wall Estimate

Ready to improve your yard’s stability and curb appeal? Whether you need erosion control or an outdoor design upgrade, Stone Forge LLC is here to help.