Northwest Siteworks excavation equipment on a Pacific Northwest work site

Reliability — We're here when you need us.

Complete Excavation Contractor

Northwest Siteworks, Inc. specializes in Excavation and complete Septic System Installation. Serving Clark County, SW Washington, Cowlitz County, and Portland, Oregon. Licensed, Insured & Bonded in WA & OR.

The Reflector's Best of the Best 2026 — Northwest Siteworks Voted Best Excavation/Land Clearing

Reliability — We're here when you need us.

Workmanship — We pay attention to the details.

Satisfaction — We exceed expectations.

Our Expertise

What We Do

Excavation contractor with heavy equipment digging

Complete Excavation

Septic Systems

Complete septic system design and installation — from permitting to final inspection.

Land Clearing

Professional clearing for new construction, agriculture, or property improvement — trees, brush, and debris removed efficiently.

Dig Basements

Professional service for every project.

Dig Pools

Professional service for every project.

Grading

Professional service for every project.

Road Building

Professional service for every project.

Tree Removal

Professional service for every project.

Trucking

Professional service for every project.

Utilities

Water, Sanitary, Sewer, Storm & more.

Consulting

Professional service for every project.

Ready to Start Your Project?

Northwest Siteworks Inc.

Licensed, Insured & Bonded in WA & OR.

WA: NORTHSI994CM | CCB# 124163

Contact

Copyright © Northwest Siteworks, Inc. All rights reserved. Northwest Siteworks Inc is an Equal Employment Opportunity Employer.