Excavation & Driveway Contractor Serving Colorado’s Mountain Communities

Tri-Lakes Contracting provides complete site development services to prepare your property for residential construction or rural infrastructure projects. Whether you’re starting with untouched land or improving an existing site, our team delivers excavation solutions built for Colorado’s unique terrain and strict county codes.

Our site development services include:

• Land clearing and grading for new builds
• Basement and foundation excavation
• Septic system and cistern excavation
• Utility trenching for water, gas, and electric lines
   

With expertise in remote access, steep slopes, and rocky ground, we ensure your project is built on a stable, compliant foundation.

Every successful mountain build starts with a well-planned driveway. Tri-Lakes Contracting provides full-service driveway design, permitting, and construction so your property is accessible, code-compliant, and built to last in Colorado’s rugged terrain.

Our driveway process includes:

1. Drafting Plans — We prepare driveway and access road designs tailored to vacant lots, steep grades, and county requirements.
2. Pulling Permits — Our team handles permit applications to meet all county regulations, saving you time and ensuring compliance.
3. Driveway Construction — We build gravel or concrete driveways engineered for mountain conditions, with proper grading and compaction.
4. Drainage & Water Control — Culverts, swales, and erosion control features keep your driveway functional year-round. 

In Colorado’s mountain terrain, proper drainage is just as important as the driveway itself. Without water control, even the best-built driveway can suffer from erosion, washouts, and costly repairs. Tri-Lakes Contracting integrates drainage features into every driveway and access road to ensure long-term performance.

Our drainage services include:

• Excavating roadside ditches and swales to manage stormwater
• Installing culverts to maintain proper water flow across driveways
• Building water bars and diversion features for steep-grade roads
• Constructing drainage banks and erosion-control systems for long-term stability

Tri-Lakes Contracting provides licensed excavation for septic tanks and drain fields across Colorado’s mountain counties. We work closely with engineers and inspectors to ensure all systems meet county and state requirements. Our excavation services are designed for long-term reliability and performance in steep, rocky terrain.

👉 Learn more about our septic system services →

In Colorado’s mountain regions, drilling a well can be risky, expensive, and uncertain. Contractors typically charge by the foot, and even if they don’t hit water, you’re still left with the bill. You risk spending thousands without securing a dependable water source.

The challenge is even greater in the Colorado Rockies, where much of the terrain is solid granite. Very few well drillers have the equipment to drill through this hard rock, and waitlists can stretch over a year — delaying your project and pushing back when you can move into your home.

Tri-Lakes Contracting provides a smarter alternative with underground potable water cisterns. Unlike wells, cisterns offer a predictable, cost-effective solution that ensures your home has the water it needs. Our systems are built to meet county occupancy requirements and deliver clean, pressurized water for every household fixture — from sinks and showers to appliances and irrigation.

Our cistern excavation services include:

• Excavation and installation of underground potable water cisterns
• Custom sizing to meet household demand and county regulations
• Options for water level monitoring and advanced filtration
• Pump systems designed for dependable, whole-home water supply
   

👉 Learn more about our cistern excavation & water storage services →

Every custom home begins with a strong foundation. Tri-Lakes Contracting provides precise foundation excavation for Colorado mountain properties, where slopes, rocky soils, and elevation changes require extra care. We prepare sites for everything from modest cabins to expansive mountain estates, ensuring each home is built on solid ground.

Our foundation excavation services include:

• Excavation for crawl spaces, slab foundations, and full basements
• Specialized digs for walkout-style basements, common in Colorado’s mountain terrain
• Site prep for custom homes, cabins, and large estates
• Precision grading to support drainage and long-term stability

At Tri-Lakes Contracting, safety and compliance are at the core of every project. We are fully licensed and insured, and an OSHA-defined competent person is present on site at all times during excavation. Our operators participate in ongoing education and training in excavation safety, ensuring that every job is performed with the highest level of professionalism.

By combining advanced equipment, detailed planning, and proven best practices, we deliver excavation services that are efficient, code-compliant, and environmentally responsible. From narrow mountain access roads to deep foundation cuts, we make sure the work is done right — and done safely.

Our commitment includes:

• A designated OSHA competent person on site for all excavations
• Licensed & insured excavation and contracting services
• Ongoing safety training and continuing education for all operators
• Strict compliance with OSHA and county excavation regulations
• Erosion control and site management to protect natural landscapes
• Modern equipment and experienced crews for precision results At Tri-Lakes Contracting, safety and compliance are built into every project. We are fully licensed and insured, and we maintain an OSHA-defined competent person on site at all times during excavation. Combined with advanced equipment, detailed planning, and proven best practices, this ensures every project is performed safely, efficiently, and to code. 

Tri-Lakes Contracting proudly serves Colorado’s mountain and foothill regions with excavation, septic, driveway, and custom home building services.

Primary Service Areas:

• Teller County (Cripple Creek, Divide, Woodland Park, Florissant, Green Mountain Falls)
• Park County (Fairplay, Alma, Bailey, Hartsel, Como, Guffey)
• El Paso County (Colorado Springs, Black Forest, Fountain)
• Fremont County (Canon City)
• Chaffee County (Buena Vista)
• Douglas County (Sedalia)
   

Extended Service Areas:
Jefferson, Clear Creek, Lake, Gunnison, Summit, Arapahoe, Adams, Eagle, Gilpin, Grand, Weld, and Pueblo Counties.