Retaining Walls That Hold Their Ground, Sequoia Stonescapes

Retaining Walls That Hold Their Ground

Structural solutions for Oregon slopes, engineered for wet soil and heavy loads.

Call (503) 932-7605
CMHA Certified
Belgard Master Craftsman
5-Year Warranty
500+ Projects
4.9 Google Rating

A retaining wall is structural work. It's holding back thousands of pounds of saturated earth.

We overbuild. That's the simplest way to put it. Most contractors in the Willamette Valley cut corners on drainage, and in a valley that gets as much rain as ours, that's a mistake you'll pay for down the road. Every retaining wall we build gets a minimum 6-inch compacted gravel base, a drain pipe with outlets no more than every 40 feet, and a full crushed rock drain column behind the wall. We build every wall to meet or exceed manufacturer recommendations. No exceptions.

We start every project with an on-site visit. We walk the property with you, talk through the design, discuss whether you need steps to get from the lower level to the upper level, and figure out if a fence or guardrail makes sense for your situation. If your wall is going to be over 48 inches, it needs to be engineered. That's code, not a suggestion. But here's what we do differently: before you spend money on engineering, we give you a realistic budget number. We've built enough walls that we can pretty accurately predict what an engineer is going to require and what it's going to cost. If you want to move forward, we get the engineering done (that typically takes one to two weeks) and then we submit a final estimate for your approval. No surprises.

Ready to discuss your retaining walls project?

Retaining Walls project detail
Retaining Walls finished result
Featured Project

Featured Retaining Walls Project

Riverfront Access Retaining Wall — West Linn, OR
Riverfront Access Retaining Wall detail
West Linn, OR

Riverfront Access Retaining Wall

Engineered retaining wall system with integrated stairway providing safe Willamette River access — 18 months of FEMA permitting

$125,000

Investment

18 Months

Permitting

Restored

River Access

Materials:Segmental retaining wall blocks with geogrid reinforcement
View Full Case Study
Why Sequoia

Why Choose Retaining Walls from Sequoia?

Turn Unusable Slopes Into Level Space

A tiered retaining wall system can convert a steep hillside into multiple flat terraces: usable yard, patio space, garden beds. In Portland's west hills and Lake Oswego, this can double your functional outdoor square footage.

Stop Erosion Before It Causes Damage

Uncontrolled erosion undermines foundations, floods basements, and destroys landscaping. A properly engineered wall with drainage behind it controls water flow and keeps soil where it belongs. Prevention costs a fraction of repair.

Engineered for Oregon Conditions

Our walls include drainage aggregate and perforated pipe behind every course. In a region that gets 40+ inches of rain annually, hydrostatic pressure is the primary failure mode for retaining walls. We design for worst-case saturation.

Residential to Commercial Grade

Same materials and methods we use on commercial projects through PacWest Retaining Walls. Belgard, Pavestone, and Allan Block systems rated for structural loads. Your residential wall gets commercial-grade engineering.

Made in USA

100% American-Made Materials

We exclusively use paving materials manufactured in the United States, supporting American jobs while ensuring the highest quality and durability standards for your project.

Investment

What Does Retaining Wall Installation Cost in Oregon?

$40 to $90 per face sqft

Typical range for the Portland metro area

Price depends on wall height and length, geogrid reinforcement requirements, engineering and permit needs, site access and excavation difficulty, and material selection (specialty block runs $90-$120/sqft).

Most of our retaining wall projects fall in the $20,000 to $45,000 range. The price range is wide because every wall is different. A 3-foot garden wall on flat ground with easy truck access is a completely different project than an 8-foot engineered wall on a hillside where we're hauling material by hand. We'll give you a clear number once we see your site.

Want a precise estimate for your project?

Portfolio

Our Retaining Walls Work

Retaining Wall Installation

Retaining Wall Installation

Retaining Wall Installation

Retaining Wall Installation

Retaining Wall Installation

Retaining Wall Installation

Retaining Wall — Salem

salem

Retaining Wall — Salem

Retaining Wall — Wilsonville

wilsonville

Retaining Wall — Wilsonville

Retaining Wall — Salem

salem

Retaining Wall — Salem

Testimonials

What Our Clients Say

The trust of Oregon homeowners, earned one project at a time

The Sequoia team did an outstanding job on the installation of a new landscape plan in April 2025. They built us a new boulder retaining wall, laid over 2,000 sf of pavers, and performed a complete renewal of our bocce ball court.

Ed Fus

Retaining Walls
We recently had a retaining wall installed at our beach house. It was such an easy and smooth process. Everyone was kind and professional from the project manager to the crew. They arrived on time and cleaned up every day before they left. We never had an issue and plan to hire them again for any future projects.

Richelle GB

Retaining Walls
We are so pleased with the work that Alex and the guys from Sequoia Stonescapes did in planning and building a retaining wall on our very steep hillside. They showed up on time, were respectful of our plants, and did excellent work! I would highly recommend Sequoia for their professionalism and awesome work.

Steve Cox

Retaining Walls
FAQ

Common Questions About Retaining Wall Installation

Not leaving enough room for drainage. The wall itself is only half the job. What's behind it matters just as much. If water has nowhere to go, it builds up pressure behind the wall and eventually pushes it out. We see this all the time on walls other contractors built. They skimped on the drain rock, didn't install proper outlets, and now the homeowner is looking at a wall that's bowing or failing five years in.

Need a Commercial Retaining Wall?

For large-scale commercial, municipal, and industrial retaining wall projects, check out PacWest Retaining Walls. Same owner, same engineering standards, built for commercial-scale work.

Visit PacWest Retaining Walls

Let's Plan Your Retaining Walls Project

Schedule a free on-site consultation. Our spring and summer schedule fills quickly across the Willamette Valley.

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