Katahdin Excavation, LLC is a leading excavation contractor based in Troutdale, Oregon, proudly serving Portland and surrounding communities across Multnomah, Clackamas, and Washington counties. Fully licensed and insured (CCB#253486), we specialize in residential and light commercial excavation services, including septic system installation, grading and drainage, foundation and basement excavation, demolition excavation, land clearing, and fill dirt delivery.

With a strong focus on precision, safety, and code compliance, we work closely with homeowners, builders, and developers to deliver reliable, affordable excavation solutions tailored to each unique project. Whether you're breaking ground on new construction or upgrading existing infrastructure, our team brings years of hands-on experience, advanced equipment, and a commitment to getting the job done right the first time.

At Katahdin Excavation, we pride ourselves on transparent communication, detailed planning, and a customer-first approach—from permit assistance to final inspection.

• Local excavation experts with in-depth knowledge of Oregon soils and permitting
• Full-service solutions from land prep to septic installation
• Fast, responsive service with competitive pricing
• Trusted by contractors and homeowners alike
   

Get started today—Call (503) 407-2110 for a free estimate and find out why we’re one of the top-rated excavation companies in the Portland metro area.

We provide safe, efficient excavation for structure demolition, clearing sites and prepping for new construction or redevelopment.