Sierra Excavation

Septic System Installation in Wasatch and Summit County

Sierra Excavation provides septic system excavation and installation for homes, cabins and ranch properties across Wasatch and Summit County. From the first test pit to the final backfill, our Heber-based crew handles the digging, tank setting and drain field work that rural and mountain properties need when there is no city sewer to connect to.

What Is Septic System Installation?

A septic system treats household wastewater on your own property. Wastewater flows from the house into a buried septic tank, where solids settle out, and the liquid then moves into a drain field (also called a leach field or absorption field) where the soil filters it naturally. Septic system installation is the excavation and construction work that puts all of those parts in the ground correctly.

Across much of Wasatch and Summit County, including Woodland, Francis, Marion, Oakley, Wallsburg and the Kamas Valley, many properties sit outside sewer district boundaries. For those homes, a properly installed septic system is the only option, and the quality of the excavation decides how long it lasts.

Our Septic Excavation and Installation Services

We handle the heavy equipment side of septic work from start to finish:

  • Test pits and percolation test excavation for soil evaluation

  • Septic tank excavation, setting and leveling

  • Drain field and leach field trenching and bed construction

  • Sewer line from the house to the tank

  • Septic system replacement and drain field repair

  • Grading, backfill and final site cleanup

We work from your approved system design and coordinate with your designer and the local health department so inspections happen on time and your project keeps moving.

Experienced Septic Installation Contractors

Septic installation in the mountains is not the same as digging in a flat valley lot. Rocky ground, shallow bedrock, high groundwater in spring and steep driveways all change how a system has to be built. Our crew knows the soils and access challenges around Heber, Kamas and the Park City area, and we plan the dig before the first bucket of dirt moves.

That planning protects your tank and drain field from settling, protects your yard from unnecessary damage, and helps your system pass inspection the first time.

Septic Systems for Rural and Mountain Properties

Rural lots bring wells, ditches and slopes. We place your tank and drain field to meet required setbacks and keep future pumping access simple.

Our Septic Installation Process

  1. Site visit and evaluation. We review the property, the system design and access for equipment.

  2. Soil testing support. We dig test pits and support percolation testing as required.

  3. Excavation and installation. We excavate for the tank and drain field and install the system to the approved design.

  4. Inspection. We coordinate timing with the inspector before anything is covered.

  5. Backfill and grading. We backfill, grade for drainage and clean up the site.

View of a narrow slot canyon with smooth, flowing sandstone walls in shades of red and orange, with light filtering from above.

Related Excavation Services

Most septic projects are part of a bigger build. Sierra Excavation can also handle foundation and basement excavation, site preparation and grading, water line and utility trenching and drainage and erosion control, so one crew can take your lot from raw ground to ready for construction.

Want to learn more first? Read our guide to septic system installation in Wasatch and Summit County.

Understanding Septic Installation Costs

The cost of septic system installation depends on the type of system your soil requires, the size of the home, how deep and rocky the ground is, how far the system sits from the house, and how easy it is to get equipment onto the site. Conventional systems in good soil usually cost less than engineered systems needed for shallow bedrock or high groundwater.

We give clear, itemized estimates after a site visit so you know what to expect. See our excavation cost guide for more on what affects pricing.

Why Choose Sierra Excavation?

Sierra Excavation is a locally owned excavation company based in Heber City. Owner McKenzie Mounteer grew up in this valley, and our team treats every property like it belongs to a neighbor. Customers choose us for:

  • Local knowledge of Wasatch and Summit County soils and terrain

  • Clear communication from estimate to final grade

  • Careful work that protects your property

  • A focus on safety and doing the job right the first time

Aerial view of a mountainous residential area with houses and winding roads during fall, with snow-capped mountains in the background.
A yellow excavator lifting a large stone block in a construction site surrounded by trees under a blue sky.

Schedule Your Septic Installation Before the Ground Freezes

Septic excavation is easiest before frost and snow arrive in the mountains. If you are planning a new home, replacing a failing system or getting ready for a spring build, contact Sierra Excavation today. Call (435) 671-8832 or request a free estimate and we will help you plan the next step.