Shamrock excavation equipment working across the Treasure Valley, Idaho

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Excavation, Septic & Sewer Service Across the Treasure Valley

Reliable excavation, sewer, septic, water and drainage work for homeowners and businesses in Boise, Meridian, Nampa, Caldwell and every community between.

Coverage / 01

Proudly Serving Southwest Idaho

Shamrock Construction & Excavation serves homeowners, businesses and property managers throughout the Treasure Valley with dependable excavation, sewer line repair, septic installation, water line and drainage services. With more than 30 years of experience and a reputation for doing the job right the first time, we bring expert work to every project, no matter the size, challenge or location.

Our Services Include

  • Excavation: precise, efficient site prep, grading and utilities
  • Septic: installation, repair and replacement built for long-lasting performance
  • Sewer: accurate diagnostics, repairs and replacements
  • Water: installation and repair that restore clean, consistent flow
  • Drainage: systems that prevent flooding, erosion and long-term damage
Aerial view of a septic installation project in the Treasure Valley

Cities We Serve / 02

From Boise to Melba and Everywhere Between

Boise & Garden City

Our home turf. From North End sewer line replacements to full excavation and site prep for infill builds, we handle Boise's mix of older utilities and new construction every week. Garden City's riverside lots bring high groundwater, and our drainage and dewatering experience keeps those projects moving.

Meridian & Eagle

Fast-growing Meridian and Eagle keep our crews busy with building pad prep, utility trenching and water line installation for new homes, plus drainage corrections where new landscaping meets Idaho clay. If you need an excavation contractor near Meridian, we are minutes away.

Excavation and trenching work on a growing Treasure Valley subdivision

Nampa & Caldwell

Canyon County is where much of our septic work happens. We install, repair and replace septic systems and drain fields across Nampa and Caldwell, and our familiarity with county permitting and local soils keeps installs on schedule.

Kuna & Melba

Rural properties around Kuna and Melba rely on wells and septic rather than city services. We build and repair the whole underground package: septic systems, water lines, and the grading and drainage that protect them.

Star & Middleton

New builds and acreage properties in Star and Middleton call us for site development, foundation excavation and sewer or septic connections, done right the first time so the ground never has to be opened twice.

Underground utility installation on a rural Southwest Idaho property

Emmett & the Outlying Valley

We regularly travel to Emmett and the surrounding areas of Gem County for excavation, septic installation and water line work. If you are anywhere in Southwest Idaho, call and we will tell you straight whether we can get a crew to you.

Ready When You Are

Reliable Service in Your Idaho Community

Get local excavation, septic, sewer, water and drainage service from a crew that knows your soil, your county and your codes. Free estimates everywhere we work.