Business Details
47 Years
experience
Emergency
services
Trusted Excavation and Construction Services in Portland
Since 1979, Coffman Excavation has evolved from a residential septic system specialist to a full-service construction contractor serving the Pacific Northwest. Our four decades of experience in site preparation, roadway construction, and heavy civil projects have established us as a premier partner for general contractors, owners, and designers. We prioritize integrity, safety, and long-term relationships, fostering a team-based culture that retains skilled professionals committed to meeting project timelines and budgets.Our collaborative approach has built enduring partnerships with clients and industry stakeholders across Portland and beyond. Safety remains our foremost value, supported by rigorous processes and a belief that all incidents are preventable. We take personal responsibility for overcoming project challenges while maintaining excellence in every endeavor. Our commitment extends beyond construction through community involvement, supporting organizations that strengthen the Pacific Northwest region.
Services
Site Preparation
Mass Excavation
Design Build
Street Construction
Port Infrastructure
Utility Installation
Demolition
Environmental Remediation
Septic Systems
Details
- Year established: 1979
Highlights and features
- 45+ years of specialized experience in excavation and construction
- Award-winning safety record with AGC National Safety Excellence recognition
- Collaborative approach with general contractors and designers
- Emergency response capabilities for urgent project needs
- Commitment to community through regional partnerships
Associations and certifications
- AGC National Safety Excellence Awards
What people say
Proven track record
Safety focus
Reliable partners
Technical expertise
Services
Site Preparation
Our site preparation services create optimal foundations for construction projects. We handle grading, drainage, and utility coordination to ensure compliance with local regulations. Clients benefit from our precision in transforming raw land into development-ready sites.
Environmental Remediation
We specialize in restoring contaminated sites through comprehensive environmental remediation. Our methods include soil stabilization, hazardous material removal, and ecosystem protection measures. Clients receive tailored solutions that meet regulatory requirements while minimizing ecological impact.
Emergency Response
Our emergency response team addresses urgent excavation and structural issues 24/7. Services include landslide stabilization, infrastructure failure repairs, and disaster recovery. Clients gain peace of mind knowing we provide rapid, reliable solutions for unexpected challenges.
Utility Installation
We install underground utility systems for water, sewer, gas, and electrical networks. Our expertise ensures proper depth, alignment, and connection to municipal systems. Clients benefit from our coordination with utility providers to maintain service continuity during installation.
Demolition Services
Our demolition services handle safe, controlled dismantling of buildings and infrastructure. We employ specialized equipment and dust suppression techniques to protect surrounding areas. Clients receive comprehensive debris management and recycling solutions.
People
Carl Coffman
Founder
Carl Coffman established the company in 1979, initially focusing on residential septic systems before expanding into full-service construction. His leadership established the company's core values of integrity and collaboration.
Questions
What construction services do you specialize in?
We specialize in excavation, site preparation, roadway construction, utility installation, environmental remediation, and emergency response services for both public and private projects.
How does your safety program work?
Our safety program combines rigorous training, daily equipment checks, and incident prevention protocols that have earned national recognition from the Associated General Contractors.
Do you handle emergency construction projects?
Yes, our emergency response team provides 24/7 support for urgent excavation needs including landslides, infrastructure failures, and disaster recovery situations.
What geographic areas do you serve?
We primarily serve the Pacific Northwest region with headquarters in Portland, Oregon, and project experience across Oregon and Washington.
How do you ensure project quality?
Our quality assurance process includes regular progress reviews, adherence to engineering specifications, and personal accountability from our management team throughout each project phase.
