Licensed contractor in Eagle 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 Eagle 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 Eagle County terrain inside and out — valley benches, steep resort hillsides, and variable rocky soils. Whether your property is in Vail, Eagle, Gypsum and Edwards, we deliver site work built for Vail Valley / western slope conditions and permitted under Eagle County Environmental 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 Eagle County Environmental Health review the first time, without the back-and-forth that stalls a Eagle County build.

Where we work in Eagle County

We serve Vail, Eagle, Gypsum, Edwards and Avon and the surrounding Vail Valley / western slope high country, out from Eagle. At 6,500–9,000 ft, Eagle County brings valley benches, steep resort hillsides, and variable rocky soils — conditions our crews work in every week, not once a season.