Main Beam Excavation

At Main Beam Excavation, we’re a family-owned excavation company proudly serving homeowners, businesses, contractors, and property owners throughout Central Oregon. We’ve built our reputation on honest communication, dependable service, exceptional workmanship, and showing up when we say we will. Whether we’re installing septic systems, developing lots for manufactured home sites, trenching utilities, or tackling large-scale excavation projects, our family combines years of experience, the right equipment, and an unwavering commitment to quality on every job.Main Beam Excavation is Central Oregon's go-to contractor for manufactured home site preparation. We handle every phase — from raw land to move-in ready — so you only need one contractor for the entire project.  For those needing septic solutions in South Deschutes County, we possess an unmatched understanding of the region's unique environmental challenges and regulatory landscape. We specialize in everything from standard gravity setups to highly complex septic systems. Because of our deep regulatory expertise, we are uniquely equipped to handle intricate DEQ variances and excel in the installation of advanced Alternative Treatment Technology (ATT) systems. Developers and homeowners trust Main Beam Excavation to transform difficult site conditions into fully compliant, expertly engineered realities.