Years in Business
Google Reviews
Projects Completed
Reliable Site Preparation, Drainage, Utility & Excavation Solutions Built for Your Project
Koby Excavation provides expert excavation services throughout the Portland, OR and Vancouver, WA metro area. From foundation excavation and utility installation to erosion control, drainage solutions, grading, and demolition, our experienced team delivers dependable site work with precision, efficiency, and attention to detail.


Erosion Control
Protect your property and construction site with effective erosion control solutions designed to manage water runoff, prevent soil loss, and maintain long-term site stability.
Utility Excavation
We provide professional utility excavation services for water lines, sewer connections, electrical conduits, and other underground infrastructure needs.
Sewer Excavation
Our team handles sewer excavation projects with precision, helping homeowners and contractors prepare for new installations, repairs, and replacements.
Backfill Services
Proper backfilling is essential for structural stability. We provide quality backfill services using the right materials and techniques to ensure a solid foundation.
Final Grading
Create a properly finished site with professional final grading services that improve drainage, prepare landscaping areas, and provide a smooth, level surface.
Foundation Excavation
Prepare your construction project with accurate foundation excavation services built around proper measurements, site conditions, and project requirements.
Pool Dig Outs
Planning a new pool? Our excavation team provides precise pool dig outs and site preparation to help your backyard project get started correctly.
Drainage Solutions
Prevent water problems with customized drainage solutions designed to redirect runoff, protect foundations, and improve your property’s long-term performance.
Demolition Services
From removing old structures to clearing unwanted concrete and materials, our demolition services help prepare your property for its next phase.
“At Koby Excavation, we believe every successful project starts with doing the groundwork right. Our goal is to provide dependable excavation services, honest communication, and quality workmanship that our customers can trust. Whether it’s a small residential project or a larger construction job, we treat every site with the same level of care and attention.”
Ben Kobylnik, President
How We Work
Site
Assessment
We evaluate your property and understand your project needs.
Estimate &
Planning
We provide a clear quote and project plan before work begins.
Excavation &
Site Work
Our team completes your excavation safely, efficiently, and with precision.
Final Grading & Completion
We finish your site with proper grading, backfill, and cleanup.
Excavating for Portland, OR & Vancouver, WA Metro Area
Koby Excavation proudly provides professional excavation services throughout the Portland, Oregon and Vancouver, Washington metro area. Our team helps homeowners, contractors, and businesses with reliable site preparation, grading, drainage, utility excavation, and earthwork solutions.




