Serving All of Multnomah County
Multnomah County's Trusted Retaining Wall Contractor
Multnomah County is Oregon Retaining Walls' home territory, encompassing Portland, Gresham, and surrounding communities. We build segmental block, natural stone, boulder, timber, and poured concrete retaining walls and outdoor steps across the county.
- Licensed, bonded & insured
- 5.0-star Google rated · locally owned & operated
- Free on-site consultations & detailed estimates
- In-house crews — no subcontractors for core work
Cities We Serve
Every Community in Multnomah County
We work across all of Multnomah County — click a city below for local information, or scroll down to see our county-wide services.
Our Services
Our Services Across Multnomah County
Retaining Walls
Custom retaining walls across the Portland area — segmental block, natural stone, boulder, timber, and poured concrete. ...
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Outdoor Steps & Stairs
Custom outdoor steps and stairs for Portland-area slopes — natural stone, block, and poured concrete steps that connect ...
Learn moreAbout Multnomah County
Retaining Walls in Multnomah County
Multnomah County is the heart of the Portland metro and home to Oregon Retaining Walls. The county spans the City of Portland, Gresham, Troutdale, Fairview, and surrounding communities — a diverse geography from close-in city hillsides to the eastern suburbs. That means we work on every kind of slope, soil, and setting the region offers, and we engineer our base prep, drainage, and reinforcement to each.
Across Multnomah County we build block, natural stone, and boulder retaining walls, tiered and terraced systems, garden and seating walls, and outdoor steps. The county's heavy clay soils, wet winters, and hydrostatic pressure shape how we build every wall's foundation, drainage, and reinforcement — local knowledge that keeps our walls holding their line for decades.
Whether you're a homeowner in close-in Portland reclaiming a steep lot or a property owner in Gresham stopping erosion, Oregon Retaining Walls is your reliable, fully-insured retaining wall contractor. We coordinate engineering and permits and build to code. Contact us for a free on-site consultation anywhere in Multnomah County.
Reviews
What Multnomah County Homeowners Say
“Oregon Retaining Walls rebuilt a failing timber wall in our backyard with a beautiful tiered block wall. The crew was professional, on time, and you could tell the drainage and base work was done right. Best contractor we've worked with in Portland.”
Mark R.
Google Review
“We had a natural stone retaining wall and matching steps installed and could not be happier. They took the time to get the design exactly right, and the craftsmanship is top notch. Turned a useless slope into our favorite part of the yard.”
Jennifer L.
Google Review
“Needed a tall engineered block wall to hold back the hillside above our driveway. ORW handled the engineering and permits, built in the drainage and geogrid, and it passed inspection with no issues. Clean work and great communication start to finish.”
David S.
Google Review
“Our new boulder wall and stone steps completely transformed the front of the house and stopped the erosion we'd been fighting for years. The install was fast and clean, and it looks fantastic. Thank you Oregon Retaining Walls!”
Amanda K.
Google Review
Featured Work
Recent Projects
Retaining Walls
Segmental Block Retaining Walls
Retaining Walls
Natural Stone & Boulder Walls
Retaining Walls
Tiered & Terraced Walls
Retaining Walls
Garden & Seating Walls
Outdoor Steps & Stairs
Outdoor Steps & Stairs
Retaining Walls
Erosion Control & Slope Stabilization
Our Process
How We Work in Multnomah County
Free Consultation
We meet you at your property to walk the slope, learn your goals, and talk through wall style, materials, height, and budget.
Design & Engineering
You get a clear design and a detailed written estimate covering material, height, drainage, and reinforcement — engineered where the height or load requires it, so you know exactly what to expect.
Excavation, Base & Drainage
Our crews excavate and compact an engineered gravel base, set a level leveling pad, and build in drainage — perforated drain pipe and clean gravel backfill — the parts that keep an Oregon wall standing for decades.
Build, Backfill & Finish
We set each course level and true, add geogrid reinforcement where needed, backfill and compact in lifts, cap the wall, and clean the site — then walk the finished project with you.
FAQ
Multnomah County Retaining Wall Questions
Do you serve all of Multnomah County?
How does permitting work in Multnomah County?
What does a retaining wall cost in Multnomah County?
How soon can you start a project in Multnomah County?
Are you licensed and insured to work in OR?
Do you offer a warranty on your projects?
Ready to Transform Your Multnomah County Outdoor Space?
Get a free design consultation and detailed estimate for your Multnomah County project.