Retaining Wall Construction and Repair in Cornelius, OR and the Portland Metro area

Engineered to Last. Built to Look Good Doing It.

A retaining wall should work hard and look even better. Our walls are designed with proper drainage, reinforced footings, and durable materials chosen to match your landscape and architectural style. We don’t just stack blocks—we solve structural problems and deliver long-term value.



Whether you’re battling soil erosion, expanding a usable yard, or boosting your property’s visual appeal, our retaining wall solutions are tailored to your site, slope, and soil.

Stone Retaining Walls

For a natural, timeless appearance, nothing compares to stone. We build dry-stack and mortared stone retaining walls using materials like basalt, granite, slate, and fieldstone. These walls are popular for garden beds, patios, entryways, and terracing.

Stone walls offer excellent longevity when built with proper base compaction and water management—two areas where our experience makes the difference.

Cinder Block (CMU) Retaining Walls

Concrete masonry unit (CMU) walls provide high structural integrity and are ideal for retaining larger slopes, property dividers, or commercial-grade projects. These can be left as-is for a clean look or finished with stucco, stone veneers, or paint for a decorative finish.

We construct CMU walls to meet code and load requirements, including the use of reinforced rebar and drainage piping where necessary.

Paver and Segmental Retaining Walls

If you’re looking for modular style and flexibility, we install segmental retaining wall systems made from engineered pavers and interlocking blocks. These systems come in various colors, finishes, and patterns—perfect for raised patios, seat walls, and integrated landscaping elements.

They're often a top choice for curved walls, tiered designs, and modern garden layouts.

Commercial Retaining Wall Construction

Need a large-scale retaining system for a commercial or multi-residential property? We build walls that meet engineering specs, pass inspections, and support safe long-term use. Our team handles coordination with site planners, surveyors, and inspectors to keep the project moving.

We also offer curb walls, slope protection, and erosion control walls for parking lots, loading areas, and property lines.

Retaining Wall Repair and Reinforcement

Cracking? Bowing? Leaning? We provide structural repairs and reinforcements for existing retaining walls that have been damaged by time, poor drainage, or shifting ground. We'll inspect the problem and recommend a solution that stabilizes your landscape and prevents future issues.

Drainage and Water Management Solutions

Even the strongest wall will fail without proper drainage. That’s why every wall we build—from a 2-foot garden barrier to a 10-foot commercial support—includes drainage fabric, gravel backfill, and weep systems to reduce hydrostatic pressure and extend wall life.

We also offer French drains and swale corrections as part of broader landscape improvement projects.

Why Work With M&M STONEHENGE Construction LLC?

We’re not a general contractor dabbling in walls. Retaining walls are a core part of what we do, and we’ve built hundreds throughout Oregon. We know how to read a slope, plan a load path, and build a wall that lasts for decades.

• Over 30 years of combined experience
• Locally owned and operated in Cornelius
• Licensed, insured, and code-compliant
• Custom design to match your property
• Fair pricing with no surprise charges
• Full site cleanup and hauling included

We treat your yard with the same care we’d want for our own homes.