Expert Excavation, quality work and a team you can count on.

Ultimate Excavation provides professional excavation, septic system installation, and underground utility work for homeowners, builders, and developers across Nampa, Boise, Meridian, and the greater Treasure Valley.

Two yellow construction bulldozers working on a dirt path in a forest with tall pine trees.
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Two yellow construction equipment vehicles, one mini excavator and one skid steer loader, working on a dirt site under a clear blue sky with trees and a fence in the background.

Fully licensed and bonded, our team delivers precise, safe, and efficient site preparation and utility solutions—done right the first time.

Whether you’re breaking ground on a new build, replacing an aging septic system, or upgrading underground lines, Ultimate Excavation combines local experience with the heavy equipment and expertise needed to get the job done.

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Under construction two-story white house with black windows and a yellow bulldozer in front, dirt piles, and leafless trees in the background.

AreaS WE SERVE

  • Nampa

  • Caldwell

  • Boise

  • Meridian

  • Kuna

  • And surrounding Southwestern Idaho communities.

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Ready to Start Your Project?

Get your project started with confidence. From site preparation to septic installation and utility upgrades, Ultimate Excavation provides the expertise and precision you need. Trust our licensed and bonded team to deliver safe, reliable results—done right the first time.

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Frequently Asked Questions

  • We proudly serve Nampa, Boise, Meridian, Caldwell, Kuna, and the surrounding Treasure Valley communities in Southern Idaho.

  • Yes, we are fully licensed and bonded for all our services, including complex septic system installations. We prioritize safety and adhere to strict safety and environmental standards on every job site.

  • Absolutely. We manage the entire process, including custom septic design, handling all necessary permits, and ensuring strict compliance with local regulations, such as those from Central District Health and the Idaho State DEQ for Nampa and Caldwell properties.

  • In addition to precision excavation for foundations and site prep, we specialize in full-service septic system design, installation, and replacement, as well as safe and accurate installation of underground utilities (water, sewer, and electrical lines). We also provide comprehensive land clearing and grading services.

  • You can get your project started by contacting us via phone at (208) 697-2429 or by Requesting a Quote. We're ready to discuss your needs and provide a quote today!