
Retaining Walls That Hold Their Ground
Structural solutions for Oregon slopes, engineered for wet soil and heavy loads.
“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?


Featured Retaining Walls Project


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
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.

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.
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?
Our Retaining Walls Work

Retaining Wall Installation

Retaining Wall Installation

Retaining Wall Installation

salem
Retaining Wall — Salem

wilsonville
Retaining Wall — Wilsonville

salem
Retaining Wall — Salem
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 WallsCommon Questions About Retaining Wall Installation
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Outdoor Living Spaces
Fire pits, outdoor kitchens, seat walls, and covered structures, built for the way Oregon actually lives.

Custom Stone Work
Flagstone, bluestone, basalt, and local Oregon stone, for projects that demand something singular.
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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