Licensed contractor in Lake County, Colorado

We do more than dig a hole and drop in a tank.

Tri-Lakes Contracting is a licensed septic installer, excavation contractor, and custom home builder working throughout Lake County. Site work and septic permitting are the critical first steps before you can even break ground on a build — and they’re exactly what we handle, start to finish.

Because we hold the septic, driveway, and building sides in-house, we bundle them into one path instead of stitching together three separate contractors: soil testing and engineered design, excavation and grading, the septic system, water storage, and the home itself — one crew, one point of contact, on your schedule.

We know Lake County terrain inside and out — the highest-elevation building ground in Colorado, thin soils, and extreme snow load. Whether your property is in Leadville and Twin Lakes, we deliver site work built for Top of the Rockies conditions and permitted under Lake County Public Health and Colorado’s Regulation 43.

What we don’t do

We don’t design or stamp septic systems ourselves — that work is always completed by a licensed engineer. But we work closely with our engineering partners so you receive a complete, permit-ready package that passes Lake County Public Health review the first time, without the back-and-forth that stalls a Lake County build.

Where we work in Lake County

We serve Leadville and Twin Lakes and the surrounding Top of the Rockies high country, out from Leadville. At 9,600–11,000 ft, Lake County brings the highest-elevation building ground in Colorado, thin soils, and extreme snow load — conditions our crews work in every week, not once a season.