We provide retaining wall design and structural engineering for all retaining wall types, from concrete block walls to cantilever and hillside retaining wall systems, throughout Washington.
Our Retaining Wall Services
Concrete Block Retaining Walls
Engineered concrete masonry unit (CMU) walls, ideal for residential and commercial properties. Durable, cost-effective, and versatile for various height requirements.
Cantilever Retaining Walls
Reinforced concrete walls that use leverage and weight to resist soil pressure. Ideal for medium to tall heights and commonly used for property grading and slope stabilization.
Gravity Retaining Walls
Massive walls that rely on their own weight to resist lateral earth pressure. Typically constructed with stone, concrete, or concrete blocks for shorter heights.
Segmental Block Walls (SRW)
Modular interlocking block systems that are engineered for stability and aesthetics. Popular for residential applications and landscaping projects.
Hillside Retaining Walls
Specialized engineering for hillside and slope retaining walls throughout Washington. We design retaining wall systems that handle challenging hillside conditions, lateral earth pressures, and seismic requirements for steep slopes.
Tiered Retaining Walls
Multiple retaining wall levels constructed to manage steep slopes and reduce individual wall heights. Ideal for hillside properties throughout Washington.
Same-day quote • 2-3 weeks delivery • No hidden fees
What Our Clients Are Saying
See why homeowners and industry professionals across Washington trust us with their projects.
Trusted by property owners and AEC industry professionals across Washington
Fast delivery • Permit guarantee* • Fixed Transparent Pricing
Built for Speed, Clarity, and Permit Success
Why Clients Choose ProStruct Engineering
2-3 Week Express Delivery
Don't wait months for plans. We deliver complete, permit-ready structural plans in just 2-3 weeks so you can start building and stabilizing your property faster.
Permit Revision Guarantee*
If building departments have comments related to our scope of work*, we'll revise plans at no extra charge--no matter how many rounds it takes. We stand by our work until your permit is approved.
Transparent Fixed Pricing
Get clear, upfront pricing with no hidden fees. Costs vary based on wall height, length, soil conditions, and foundation requirements. You'll receive a detailed quote within 24 hours.
Your Own Dedicated Project Manager
Every project includes a dedicated project manager at no additional cost. They act as your single point of contact, coordinating with our engineers and collaborating with third-party professionals--including architects, contractors, and others--on matters within our scope to ensure clear communication, faster decisions, and a seamless project experience.
Serving All Across Washington
We're the trusted retaining wall design engineers and structural engineers for property owners and AEC industry professionals in Seattle, Bellevue, Tacoma, Spokane, Vancouver, Olympia, and all surrounding Washington cities. Specializing in hillside retaining walls and challenging slope conditions. Local expertise, fast service.