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Home / Service Areas / Gunnison County

Service Area · Gunnison Valley high country

Licensed contractor in Gunnison County, Colorado

Senior-led septic, excavation, driveways, water storage, and custom building across Gunnison County — Gunnison Valley high country at 7,700–9,000 ft — with the hard mountain site work handled in-house.

Licensed & insuredGunnison County Environmental HealthReg 43 OWTSGunnison to Crested Butte

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 Gunnison 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 Gunnison County terrain inside and out — one of the coldest valleys in the state, rocky benches, and short seasons. Whether your property is in Gunnison, Crested Butte, Almont and Mt. Crested Butte, we deliver site work built for Gunnison Valley high country conditions and permitted under Gunnison County Environmental Health and Colorado’s Regulation 43.

What we handle in Gunnison County

Soil testing & engineered design

We excavate profile test pits, work with licensed engineers on the soils report and site plan, and lay out the drain field, tank, and setbacks — the design your Gunnison County Environmental Health permit stands on.

Septic / OWTS installation

Full onsite wastewater systems — conventional, pressure-dosed, and advanced-treatment — installed for Gunnison Valley high country ground and Gunnison County Environmental Health review.

Excavation, grading & driveways

Access, building pad, utilities, and all-weather driveways cut for Gunnison County — one of the coldest valleys in the state, rocky benches, and short seasons.

Water storage & cisterns

Buried cisterns and fire-suppression storage for lots without a reliable well, or where the county requires stored water on site.

Custom home construction

From a build-ready design or your own plans, we take a raw Gunnison County lot through to a finished, permitted home.

Feasibility & site planning

Before you buy or build, a clear read on what the lot can support — soil, slope, setbacks, water, and the permit path.

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 Gunnison County Environmental Health review the first time, without the back-and-forth that stalls a Gunnison County build.

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Where we work in Gunnison County

We serve Gunnison, Crested Butte, Almont and Mt. Crested Butte and the surrounding Gunnison Valley high country high country, out from Gunnison. At 7,700–9,000 ft, Gunnison County brings one of the coldest valleys in the state, rocky benches, and short seasons — conditions our crews work in every week, not once a season.

Gunnison County — questions

Do you handle septic permitting in Gunnison County?

Yes. We excavate the soil test pits, coordinate the engineered design with a licensed engineer, and hand you a permit-ready package for Gunnison County Environmental Health under Colorado Regulation 43. On Gunnison Valley high country ground — one of the coldest valleys in the state, rocky benches, and short seasons — that soil evaluation is what the whole system is designed from.

Can you bundle septic, driveway, and the house together?

That’s our model. Because we hold the septic, excavation, and building sides in-house, we sequence them into one path — soil test, design, driveway, septic, water, and the home — instead of you chasing three contractors across Gunnison County.

Which Gunnison County towns do you work in?

Gunnison, Crested Butte, Almont and Mt. Crested Butte and the surrounding high country, out from Gunnison. If your lot is raw Gunnison Valley high country ground, that’s exactly the work we’re built for.

What don’t you do?

We don’t design or stamp septic systems ourselves — that’s always done by a licensed engineer. We work hand-in-hand with our engineering partners so your package passes Gunnison County Environmental Health review the first time.

Building in Gunnison County?

Tell us about the lot and we'll map the whole path — feasibility, design, permit, and build.

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