Retaining Walls · Portland, OR · Multnomah County
Retaining Walls in Portland, Oregon.
Dog capital of the US. Fast-growing residential yard segment. GI Landscape has been installing retaining walls across the I-5 corridor since 2016. Same-week site visits to Portland, locked quotes, no upfront payment, and a 5-year warranty on every install.
Retaining Walls in Portland
Retaining walls in Portland vary widely. Inner-east projects are typically short landscape walls; Southwest hills work often involves engineered retention on steep lots with shallow basalt. Permit complexity rises sharply on the engineered jobs.
About working in Portland
What we've learned installing retaining walls in Portland.
Portland is the largest city in our service area, but we're selective about which neighborhoods we take work in. We focus on the close-in southwest and inner-east neighborhoods where the project profiles fit our crew strengths — hardscape, drainage, and full-yard transformations on established residential lots.
Terrain & soil
Massively variable. Southwest has hills and basalt; east of the river is mostly flat alluvial soil; the hills above Burnside are deep loam over clay. Drainage planning has to be done lot-by-lot in Portland more than anywhere else in our footprint.
Properties we work on
Anything from 1900s craftsman bungalows on 0.1 acre to 1+ acre lots in the Southwest hills. Mature landscapes are the norm — most projects involve working around existing trees, hardscape, and infrastructure.
Neighborhoods we serve
- Southwest Portland (Multnomah, Hillsdale, Burlingame)
- Sellwood-Moreland
- Eastmoreland
- Laurelhurst
- Hawthorne
Permits in Portland
Portland's permit process is the most complex in our service area. Tree code, BES (Bureau of Environmental Services) stormwater requirements, and historic overlays all kick in depending on neighborhood. We quote permit timelines conservatively here.
Drive from Canby
30-45 minutes depending on neighborhood
Population
~635,000
County
Multnomah
ZIP codes
97201, 97202, 97203, 97204, 97205, 97206, 97209, 97210, 97211, 97212, 97213, 97214, 97215, 97216, 97217, 97218, 97219, 97220, 97221, 97222, 97223, 97225, 97227, 97229, 97230, 97231, 97232, 97233, 97236, 97239, 97266
Recent retaining walls work
Real projects across the Portland metro and Willamette Valley.
Why Portland homeowners choose GI
Structure, beauty, and confidence.
Our retaining walls provide structural support while adding visual appeal and erosion control to your landscape.
- Local crew. Our 14-person crew operates out of Canby — 30-45 minutes depending on neighborhood from the yard.
- CCB 224884. Licensed, bonded, and insured in Oregon. We treat your property like it was our own.
- No upfront payment. Free site visit, locked quote, payment after work is complete.
- 5-year warranty. Standard on every retaining walls install — terms attached to your signed contract.
- Family-run. Same owner since 2016 (Israel). The crew that quotes you is the crew that installs.
Common questions
What Portland homeowners ask about retaining walls.
How much does a retaining wall cost?
Retaining walls in our area typically run $10,000–$30,000. The drivers are wall height, soil conditions, drainage requirements, and material (block, stone, or timber).
How tall can you build a retaining wall?
Standard residential walls run 2–4 feet. For walls above 4 feet we engineer with stepped or tiered designs, geogrid reinforcement, and drainage systems built in. Tall walls require permits — we handle that.
Why do retaining walls fail, and how do you prevent it?
Walls fail because drainage was an afterthought. We design drainage first — perforated pipe behind the wall, crushed gravel backfill, weep holes where needed — then build the wall around that system.
Do retaining walls come with a warranty?
Yes, 5-year warranty on every retaining wall install. Warranty terms attach to your signed contract.
Do you require an upfront payment?
No. We never require upfront payment. The free site visit gives you a locked quote, and you're not invoiced until the work is complete.
What areas do you serve?
We work the I-5 corridor from Canby (our HQ) through Aurora, Hubbard, Oregon City, West Linn, Wilsonville, Tualatin, Sherwood, Lake Oswego, Portland, and Salem.
Are you licensed and insured?
Yes. GI Landscape is CCB # 224884, fully licensed, bonded, and insured in the state of Oregon.
Free quote. No upfront payment.
Same-week site visits.
Veteran, senior, and neighbor discounts available — ask at your free site visit.