Summit County sits between 9,000 and 11,000 feet above sea level. The terrain is steep, the soil is rocky, the frost line runs 48 to 60 inches deep, and the construction window between snowmelt and first freeze is roughly five months. Every excavation project up here has to account for conditions that do not exist at lower elevations, and the margin for error is narrow.
We provide excavation services for residential and commercial properties across Breckenridge, Frisco, Dillon, Silverthorne, Fairplay, and Leadville. Whether you are preparing a site for new construction, stabilizing a slope with a retaining wall, clearing a lot for development, or installing a septic system, we handle the project from first assessment to final grading. One contractor, one point of contact, start to finish.
(970) 293-4901
Excavation & Site Preparation
Mountain excavation is not the same work as excavation on the Front Range. At altitude, the soil profile changes every few feet. You hit decomposed granite, then clay, then solid rock. Frost penetration in Summit County reaches four to five feet below grade, which means footings, utilities, and drainage systems all need to be engineered deeper than standard specifications written for Denver or Colorado Springs.
Summit County requires grading and excavation permits issued by the Engineering Department under Chapter 6 of the County Code. These permits exist to maintain safe construction practices and protect water quality through the management of earth-disturbing activities. We handle the permitting process so you do not have to navigate it from out of state.
Our excavation services include foundation excavation for new builds and additions, driveway cuts and access road construction, trenching for water, sewer, gas, and electrical utilities, site grading and drainage improvement, and backfill and compaction to county specifications.
Every excavation project starts with an on-site assessment where we evaluate the soil conditions, slope, drainage patterns, and access for equipment. You receive a written scope of work and a fixed price before any machine touches the ground.
Land Clearing & Lot Preparation
Many properties in Summit County are heavily wooded, ungraded, or have not been touched since they were originally platted. Before any construction can begin, the site needs to be cleared, graded, and stabilized.
Land clearing at altitude involves more than removing trees. The root systems in mountain soil are often the only thing holding a slope together. Remove them incorrectly and you create an erosion problem that costs more to fix than the original clearing. We plan every clearing project around drainage, slope stability, and the county’s grading regulations so the site is ready for construction without creating downstream problems.
Summit County also enforces a no-net-loss policy for wetlands in unincorporated areas. If your property contains wetlands or is adjacent to a waterway, development may require a Section 404 permit from the Army Corps of Engineers. We coordinate with wetland consultants and county staff to identify these requirements before work begins, not after a violation notice arrives.
Our land clearing services include tree and brush removal, stump grinding and debris hauling, lot grading and leveling for construction pads, access road clearing for new builds, and erosion control and revegetation after clearing.
Retaining Wall Design & Construction
The terrain in Summit County creates slope challenges on nearly every property. Whether you are building on a hillside lot in Breckenridge, stabilizing an eroding bank along a driveway in Silverthorne, or creating a level yard on a steep grade in Frisco, retaining walls are often the structural solution that makes the rest of the project possible.
We design and build retaining walls for slope stabilization, erosion control, driveway support, and landscape grading. Materials include natural boulder walls using locally sourced moss rock, engineered segmental block walls for structural applications, timber walls for landscape-grade installations, and poured concrete walls where engineering requirements demand it.
Retaining walls over four feet in height require engineering in Summit County. We work with licensed structural engineers to produce stamped plans that meet county building code and pass inspection. Walls under four feet are designed and built to the same structural standards even when engineering is not required by code, because at this altitude, freeze-thaw cycling, snowmelt saturation, and slope loading will expose any shortcut within two winters.
Every retaining wall project includes excavation of the wall foundation to below the frost line, installation of drainage behind the wall to manage hydrostatic pressure, compacted base material to county specifications, and backfill and grading to direct surface water away from the wall.
Septic System Design & Installation
Many properties in Summit County are not connected to municipal sewer and rely on onsite wastewater treatment systems. Summit County Environmental Health regulates the permitting, design, and installation of all septic systems in unincorporated areas, and the requirements are strict.
The septic permitting window in Summit County is limited by weather and groundwater. Soil evaluations cannot be performed when the ground is frozen, and seasonal high groundwater must be checked during peak saturation, which is typically mid-May through mid-June depending on elevation. In practice, this means septic permits are generally issued between June and early fall. Planning ahead matters because missing the window can delay a project by an entire year.
At elevation, septic systems face challenges that do not exist at lower altitudes. Frost depth of four to five feet means all tanks and distribution lines must be buried deep enough to avoid freezing. The rocky soil common across Summit County often limits natural drainage, which affects leach field design. Improperly installed systems can contaminate groundwater, which is a serious concern in a county that depends on the Dillon Reservoir watershed for regional water supply.
Our septic services include soil testing and percolation testing, system design to meet Summit County Environmental Health regulations, permitting and coordination with county inspectors, complete installation of septic tanks, distribution boxes, and leach fields, and system repair and replacement for failing or outdated systems.
We design every system for the specific soil and groundwater conditions on your property. If previous percolation test results exist, we review them for validity since test results in Summit County are generally considered suitable for a limited period, often two years.
Built for Summit County Properties
Most homes in Breckenridge, Frisco, Dillon, and Silverthorne are not occupied year-round. The owners visit a few times a year and need work done on their schedule, not ours. That is the reality of working in a mountain resort county, and it is how the majority of our projects operate.
We scope every project with a written estimate and a clear timeline before work begins. When the job is done, the site is clean and the work is finished. No callbacks, no loose ends, no half-completed projects waiting for a second trip. Eight years of building in Summit County means we understand the terrain, the permitting, and the short weather windows that make reliable execution the only thing that matters up here.
Why Summit County Excavation Is Different
Working at altitude is not a minor variable. It affects every part of an excavation project, from the equipment used to the timeline to the engineering.
Frost depth at altitude requires all foundations, footings, and buried systems to be installed 48 to 60 inches below grade. Denver’s frost line is 36 inches. The difference translates directly into more excavation depth, more material, and more time on every project.
The construction season is compressed. Ground conditions in Summit County are generally workable from late May through November, depending on the year. Snow can fall any month, and frozen ground makes excavation significantly harder and more expensive. Projects planned for summer and early fall run more efficiently and cost less than projects that push into late season.
Rocky mountain soils are unpredictable. You can start a trench in sandy loam and hit solid granite ten feet later. Equipment selection, project timelines, and pricing all have to account for the possibility of rock excavation, which is slower and harder on machines.
Water quality regulations are enforced. Summit County works with the Summit Water Quality Committee and the Colorado Department of Public Health and Environment to protect the Dillon Reservoir watershed. Every earth-disturbing project must comply with stormwater management requirements, and the county inspects for compliance.
These are not obstacles. They are the conditions we have been working in since 2018. We know the terrain, we know the permitting process, and we know how to deliver projects on time in a five-month window at ten thousand feet.
Service Area
We provide excavation services across all of Summit County, Colorado, including Breckenridge, Frisco, Dillon, Silverthorne, Fairplay, and Leadville. We also serve neighboring areas in Park County and Lake County for projects within reasonable travel distance.
Get a Free Estimate
Call (970) 293-4901 or fill out the form below. Every estimate includes an on-site assessment, a written scope of work, and a fixed price. No surprises, no hidden fees.
Licensed, insured, and ICC certified. Serving Summit County since 2018.
Service Area
We provide excavation services across Summit County, including Breckenridge, Frisco, Dillon, Silverthorne, Fairplay, and Leadville.
Licensed, Insured, and Built for Mountain Work
We have been handling excavation projects in Summit County since 2018. We know the terrain, the weather windows, and the permitting process. Every project starts with a free on-site estimate.
Call (970) 293-4901 or fill out the form below for a free quote.