Coffman Excavation

At Coffman Excavation, we are your premier contractor for excavation, site preparation, and heavy civil projects in the Northwest. Since our founding in 1979, we have grown from a specialist in residential septic systems to a full-service contractor, completing many of Portland's most challenging and high-profile projects. Our expertise includes site preparation, mass excavation, design build, street and road construction, port infrastructure, utility installation, demolition, emergency response, environmental remediation, and septic systems.

Our commitment to excellence in safety is unparalleled. We are proud to have been a finalist at the AGC's 2020 and 2022 National Safety Excellence Awards Ceremony. Our exceptional safety record results from thorough processes and a core belief that all incidents are preventable. We take personal responsibility for meeting your project's timelines, budgets, and overcoming any obstacles.

Our values are built on integrity, respect, loyalty, and long-term relationships. We promote 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.

We are committed to making a difference in our communities by contributing to various organizations across the Pacific Northwest. Our commitment to excellence in safety, our extensive range of services, and our values of integrity, respect, and loyalty make us your trusted partner in construction.