Excavator doing site prep in North Central Washington, specializing in rock walls and developing raw land into buildable sites.

Breaking Ground, Building Futures

Cascade Excavation provides high-quality excavation services to homeowners, builders, and contractors across North Central Washington. We specialize in site preparation and land development, foundation excavation, custom rock retaining walls, as well as septic/drainage systems. From raw land to build-ready sites, we combine precision and efficiency with a deep understanding of local terrain.

Whether you're starting a new build or improving your property, Cascade Excavation delivers solid groundwork you can build on with confidence.

What we do

Rock Retaining Walls

A dirt pathway with a stone retaining wall on the left, surrounded by tall pine trees in a wooded area during sunset.

We specialize in the design and construction of custom rock retaining walls that provide structural support and a Northwest aesthetic built to last.

Foundation Excavation

Construction site with a small excavator digging a foundation in a cleared area surrounded by trees.

With extensive experience in foundation excavation, our team ensures accurate depth, grading, and site conditions so your foundation is ready for a lasting build.

Site Preparation

A yellow excavator working on a dirt mountain trail surrounded by tall trees and a forested hillside under a clear sky.

Proper site preparation is critical to a successful build. We consult with homeowners and contractors to prepare well-planned foundations, access, and building areas.

Land Development

Logging road through a dense forest with a yellow bulldozer and a pile of cut logs, with mountains in the background.

Ensuring your project starts on solid ground, we transform raw land into build-ready sites with professional grading, clearing, and access excavation.

Tree & Debris Removal

A Caterpillar 320 excavator carefully removes two large pine trees that have fallen on a home in Leavenworth, WA

Cascade Excavation offers professional tree and debris removal, handling everything from simple brush removal to major storm cleanup. We take on tough terrain and damaged properties, clearing the way for what comes next.

Septic Systems & Drainage

A large black drilling pipe lying in a dirt trench with gravel on one side, surrounded by a rural landscape with trees, a wooden building, and mountains in the background.

Proper drainage is essential to protect your property. We install and repair drain fields and drainage systems that prevent water buildup and maintain long-term site stability.

Adam West: Owner/Operator of Cascade Excavation, LLC in Leavenworth, Washington

Get to know us

Project Gallery

Cascade Excavation is built on generations of experience and a deep connection to Leavenworth and the Upper Valley. Owner Adam West is a third-generation excavation professional with deep roots in Leavenworth, WA. He began his career working alongside his father, operating an excavation company before expanding his experience with larger firms across the region.

Adam brings a wide range of hands-on expertise, including work on WSDOT and other government projects, residential builds, subdivisions, and high-profile park features. As a foreman, he’s worked closely with local PUDs, suppliers, surveyors, and engineers throughout Chelan and Douglas counties, giving him a strong understanding of both the land and the process behind successful projects.