Expert Sitework & Excavation in Oregon & Washington

Four generations of heavy civil expertise for developers and general contractors.

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Oregon and Washington

The Trusted Sitework Partner for the Pacific Northwest's Leading Builders

Our commitment to partnership and excellence is why over 80% of our business comes from repeat clients. We are the proven choice for developers and builders throughout Oregon and Washington who value reliability, proactive communication, and superior performance. When you partner with Legacy 6 Inc., you are choosing a team that invests in your project’s success as if it were our own. Our track record is built on a foundation of trust, integrity, and consistently delivering results that exceed expectations.

The Foundation of a Successful Build: Why Professional Sitework Matters

Proper site preparation is more than just moving dirt; it’s the critical first step that determines your project’s timeline, budget, and long-term stability. As the premier sitework contractor in Oregon and Washington, we understand that expert grading and excavation services are essential for setting your project on solid ground. Investing in professional sitework prevents costly structural issues, drainage problems, and unforeseen complications down the line, ensuring the integrity of your entire build from the ground up.

Mitigate Risks & Avoid Costly Delays

Ensure Structural Integrity & Longevity

Maximize Land Use & Value

Streamline Your Project Timeline

Comprehensive Sitework & Excavation Services

Legacy 6 Inc. is a full-service heavy civil contractor equipped to handle every phase of site preparation. From the initial clearing and demolition to the final grading and utility installation,
we provide truly end-to-end solutions for developers and builders across Oregon and Washington. Our integrated approach ensures seamless coordination
and accountability throughout the project lifecycle.

Commercial Site Preparation

We specialize in preparing sites for a wide range of commercial construction projects, from 5,000-square-foot retail buildings to sprawling 500,000-square-foot industrial parks and distribution centers. Our commercial site preparation services are comprehensive, including bulk earthmoving, building pad construction with precise compaction, parking lot grading, and the installation of complex storm drainage and underground utility systems. We deliver sites that are perfectly primed for vertical construction.

Residential Excavation Services

Our team has deep experience managing the unique demands of residential developments. We work with builders on projects ranging from 10-lot subdivisions to master-planned communities with over 100 lots, as well as multi-family apartment complexes. We manage the entire scope of residential excavation, including mass grading, road and curb preparation, foundation digging for individual homes, trenching for all wet and dry utilities, and creating level, stable lots ready for homebuilders.

As a leading land clearing company in the Pacific Northwest, we efficiently prepare raw or previously developed land for new construction. Our capabilities include the safe and complete removal of trees, stumps, and dense vegetation. We also provide full-scale structural demolition services, breaking down and hauling away old structures to make way for new projects. Our process includes the proper abandonment of outdated septic systems and wells, ensuring your site is clean and compliant.

Precision Grading & Underground Utilities

Our grading and excavation services provide the high level of accuracy required for the most complex projects. We expertly handle road construction, from subgrade preparation to final grade for paving. Our teams are skilled in preparing sites for retaining walls and installing critical underground utilities. This includes the precise trenching and backfilling for water mains, sewer lines, and storm drainage systems, all coordinated to create a functional and reliable infrastructure for your development.

Our Proven Process for On-Time, On-Budget Results

Our approach is built on a foundation of proactive communication, four generations of experience, and a deep-seated commitment to partnership. We treat your project like our own, implementing a transparent and methodical process that ensures a smooth and successful outcome from start to finish.

Step 1:
Project Planning & Value Engineering

Step 2:
Pre-Construction & Site Mobilization

Step 3:
Expert Excavation & Grading

Step 4:
Continuous Communication & Management

Step 5:
Site Finalization & Hand-Off

Start Your Next Project on Solid Ground

Partner with a sitework contractor that brings four generations of experience, an unwavering commitment to your success, and a proven track record of excellence in Oregon and Washington. Let’s discuss your project’s needs and begin building a lasting relationship focused on quality, integrity, and results.

Frequently Asked Questions About
Sitework & Excavation

We serve a wide range of locations throughout Oregon and Washington. Our primary service areas include the greater Portland metro area, Beaverton, Hillsboro, Gresham, Lake Oswego, and Tigard in Oregon, as well as Vancouver, Camas, Washougal, and Kelso in Washington. We cover most communities in the surrounding region.

We are fully equipped and staffed for projects of all sizes and complexities. Our ideal projects include residential subdivisions between 10 and 100 lots and commercial site development for projects ranging from 5,000 to 500,000 square feet. We have the resources to manage both large-scale mass grading and smaller, more intricate site preparations.

Value Engineering is our standard practice of reviewing project plans from an owner’s perspective. We leverage our deep experience in the Pacific Northwest to suggest alternative methods, materials, or phasing that can reduce costs, improve project timelines, and enhance long-term performance, all without sacrificing quality or design intent. We provide this collaborative insight as part of our partnership, not as an extra service.

Owning and maintaining our extensive fleet of over 150 units—including excavators, dozers, and trucks—gives us complete control over equipment availability and scheduling. This eliminates the significant delays that can arise from depending on third-party rental companies. It ensures the right machinery, operated by our skilled team, is on your site exactly when it’s needed, keeping your project firmly on track.

Yes. We are a fully licensed, bonded and insured heavy civil construction contractor authorized to perform work in both states. Our license numbers are Oregon CCB #217133 and Washington #LEGAC6I856KA. We are also proud to be a certified Service-Disabled Veteran-Owned Small Business (SDVOSB).

When choosing a sitework contractor in Oregon or Washington, it is critical to look for a company with proven local experience, substantial in-house resources, a robust safety record, and a transparent communication process. A true partner like Legacy 6, who approaches your project with an owner’s mindset and prioritizes building a strong team relationship, is essential for a successful and low-stress construction experience.

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