
25+ Years of Excellence
Revitalizing Infrastructure, Restoring Nature
Locally owned excavation and environmental services serving Colorado's Front Range and Southeastern Wyoming. We work with the land — not against it.
Our Commitment to the Land
At Legacy Excavation LLC, we're driven by a commitment to protect and enhance the natural environment. Whether we're installing a new drainage system, restoring a streambank, or repairing underground infrastructure, our goal is simple: do it right and make it look like we were never there.
25+
Years Experience
2
States Served
6
Core Services
What We Do
Low-impact excavation solutions built to last
Trenchless Pipe Repair
No-dig pipe rehabilitation using Bluelight LED curing — no damage to yards, driveways, or foundations.
Septic Installation
Expert septic system design and installation for residential and commercial properties.
River Restoration
Rehabilitating rivers and streams to their natural state — improving water quality and wildlife habitat.
Site Drainage
Comprehensive drainage systems to protect properties from erosion, flooding, and water damage.
Boulder Scaping
Natural stone features that create stunning and structurally functional landscapes.
Pipe Fence Installation
Custom welded pipe fencing for farms, ranches, and commercial properties.
Our Work
Projects across Colorado's Front Range and Southeastern Wyoming





Built on Precision & Sustainability
We bring 25+ years of deep industry knowledge and refined skills to every job, ensuring results you can depend on. From trenchless technology to natural landscape integration, we specialize in low-impact solutions.
Based in Berthoud, CO, we understand the unique soil, weather, and infrastructure challenges of Colorado and Wyoming. Our licensed and insured team meets or exceeds all local regulatory requirements, with safety and accountability at the core of our work.
Gary Kolm
Owner / Operator
Gary leads Legacy Excavation LLCwith over 25 years of hands-on excavation and environmental services experience across Colorado's Front Range and Southeastern Wyoming.
Ready to Get Started?
From septic systems to river restoration, we deliver results that are both effective and environmentally responsible.
Request a Free Estimate