Since Carl Coffman founded our company in 1979, Coffman Excavation has grown from a specialist in residential septic systems to a full-service contractor specializing in site preparation and roadway construction. From small scope projects to major public works endeavors, we have gained a reservoir of knowledge that only three decades of experience can impart.

Carl Coffman

Carl Coffman, Founder

By focusing on integrity, service and long-term relationships, we have remained a premier contractor in the Portland Metropolitan area. Our longevity in the marketplace and collaborative project approach has created enduring partnerships that are based on loyalty and trust.

Coffman Excavation promotes employee retention by fostering a team-based atmosphere, continued opportunity for growth and a culture based on respect. This philosophy has resulted in a diverse management and ownership team comprised of both field and office employees. Our team takes personal responsibility for meeting your project’s timelines, budgets and overcoming the inevitable hurdles that can challenge even the most successful project.