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Retaining Walls in the Greater Seattle Area

Hold the Grade, Reclaim the Yard

A retaining wall does more than hold back a slope — it turns an unusable grade into level, planted, livable space, whether that's terraced garden beds, a leveled lawn or patio area, or raised planters that bring the garden up to you. What separates a wall that lasts from one that leans out after a few winters is mostly what you can't see: the drainage layer behind it and the base beneath it. We specialize in low walls — under four feet — built the right way for the grade they hold.

Free on-site consultation · Fixed-price estimate · Workmanship-backed

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Turnkey Landscaping

Excavation, base, drainage, wall construction, and backfill are managed end to end, so the wall lands as described.

Harmonious Design

Block, natural stone, or timber chosen to fit your home and landscape — and a wall that can double as a terrace, raised planter, or seat wall.

Quality & Efficiency

A drainage layer behind every wall and a base built for clay soils and freeze-thaw. For the low walls most yards need, that's what makes them hold for the long run.

Workmanship Warranty

We back the craftsmanship of every wall we build, and we're glad to walk you through exactly what that covers.

What a Retaining Wall Project Could Involve

A retaining wall can solve a grade problem and add usable space at the same time. These are the most common ways we approach it — we'll recommend the right scope after seeing your yard.

Terracing a Slope

Convert a steep, hard-to-use hillside into level, planted terraces using a series of low walls — usable garden space where there was only grade.

Stepped, low-wall terraces
Level planting terraces
Drainage layer on every tier
Each wall kept under 4 ft
Leveling for Lawn or Patio

Create a flat, usable area for a new lawn or patio by holding back the grade on one side.

Grade correction for level space
Coordinated with lawn/patio build
Surface and subsurface drainage
Clean transitions to existing grade
Raised Planters & Seat Walls

Bring planting beds up to a comfortable height, or add built-in seating that doubles as structure.

Raised planter walls
Built-in seat walls
Material matched to nearby hardscape
Integrated soil and drainage
Erosion & Grade Correction

When a slope is eroding or shedding water toward the house, a low wall plus grading helps redirect it and hold the ground.

Stabilize low eroding slopes
Redirect surface and subsurface water
Built with drainage to relieve water pressure
Permit coordination where required
$30–$50 per face foot

A "face foot" is one square foot of the wall's visible face — its length times its exposed height. So a wall 20 feet long and 3 feet tall is about 60 face feet, or roughly $1,800–$3,000. Material, drainage needs, and site access drive the final number. We provide a fixed-price estimate after an on-site visit.

Every Element, Designed to Work Together

Design cohesiveness is the whole point. As a full design-and-build company, we shape your retaining walls alongside the planting, lighting, hardscape, and grade around them — as one intentional design. The result reads as a single, cohesive landscape, not projects added on at different times by different crews.

All handled under one crew
Patios & walkways Planting & raised beds Drainage & grading Steps & seat walls
1985Serving Greater Seattle since
200+Acres designed, built & maintained across the region
4.7★Across verified Google reviews

What Neighbors Across the Eastside Say

★★★★★

"Classic did a major yard remodel for us, completely transforming our yard… They also clearly stand behind their work as they have been willing to swap out any plants that were struggling and have been willing to return to correct anything that didn't go as planned… I would highly recommend Classic for the value they provide and the quality of the work for the price! My yard went from meh to much more beautiful."

R.S. · Verified Google review
★★★★★

"The folks at Classic Nursery did an awesome job in my backyard. I had a basic idea that I would like a Zen rock garden, and they really brought it to life with all of the details that you might see in an actual Zen garden in Kyoto. They had a great design, and were timely, prompt and professional. I love my new backyard!"

B.G. · Verified Google review

Retaining Wall Questions

The questions we hear most often before a retaining wall project.

How much does a retaining wall cost in Seattle?

Low retaining walls (under 4 feet) typically run $30–$50 per face foot. A "face foot" is one square foot of the wall's visible face — its length times its exposed height. So a wall 20 feet long and 3 feet tall is about 60 face feet, or roughly $1,800–$3,000. Material, drainage needs, and site access drive the final number. We provide a fixed-price estimate after an on-site visit.

Do I need a permit or engineering for a retaining wall?

In most Greater Seattle cities, walls over 4 feet tall require a building permit and engineering. We focus on walls under 4 feet, which typically need neither — and that's enough for most terracing, leveling, and raised-planter projects. If your site truly calls for a taller, engineered wall, we can incorporate that as part of a larger project.

Why do retaining walls fail?

Almost always water and base. A wall without a drainage layer builds up pressure behind it; one set on a poor base can't stay true. Both lead to leaning or bowing over time. Built with proper drainage and a solid base, a low wall holds.

What materials do you build with?

Segmental concrete block (versatile and cost-effective), natural stone (premium look, higher cost), and timber where it suits the setting. We'll recommend based on the look you want, the site, and the budget.

Can a retaining wall create raised planters or seating?

Yes — terracing, raised planter walls, and seat walls are some of the most popular uses. A low wall can solve a grade problem and add usable garden or living space at the same time.

Do you guarantee the work?

We back the workmanship of every wall — base, drainage, and construction to standard. We're glad to walk through exactly what's covered during your estimate.

Ready to Reclaim Your Slope?

Tell us about your project and we'll be in touch within one business day.

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