
About Colf construction
“Built on Trust, Powered by Generations.”
Our Story
Since 1975, Colf Construction has been a cornerstone of excellence in the construction industry, proudly serving Southern Washington and the Portland Metro area. Founded by Robert Colf as a small landscaping company, Colf Construction has grown into a trusted name in heavy civil projects, commercial construction, and subdivision development.
As a family-owned business with nearly five decades of experience, we don’t just build structures—we build relationships and strengthen our community. Our commitment to honesty, transparency, hard work, and innovation drives everything we do.
At Colf Construction, we believe in putting people first—whether it’s our employees, clients, or the communities we serve. Guided by our family legacy and values, we approach each project with integrity and a dedication to excellence. Every project is an opportunity to leave a lasting impact and uphold our reputation as a company that delivers on its promises.

Our Mission
To build with purpose and integrity—creating lasting value for communities and clients through hard work, innovation, and a legacy of trust.
Our Values
Honesty: Building trust through transparency in every interaction.
Transparency: Keeping open lines of communication at every stage.
Hard Work: Relentless effort and dedication to deliver the best results.
Quality: We build to last—with precision, care, and craftsmanship.
Innovation: Leveraging creativity and new ideas to find the best solutions.
Meet Our Team

Bob Colf – Owner

Garrett Colf – Project Manager/Estimator

Halle Colf – Project Manager

Dylan Colf – Civil Superintendent

Josh Winskowski – Superintendent

Sam Brouwer – Project Manager/Estimator

Laura Munoz – Project Administrator

Jesse Trolinger – Property Manager

Get in Touch
Ready to start your project? Contact us today and letʼs build something amazing together!