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About

A3 Underground Construction is a home service, located at 3494 Rush Creek Rd. Cambridge. They can be contacted via phone at 208-630-3017 or email at [email protected], visit their website www.idahoseptictanks.com or Facebook profile for more detailed information.

A3 Underground Construction is central and southwest Idaho’s best choice for high quality, cost-effective septic system installation and repair, underground drainage solutions, and trenching, grading, and excavating services. We have over 30 years of experience, extensive industry knowledge, and a fleet of well-maintained demolition and construction equipment. Not only are we a fully licensed and insured excavation and septic system contractor, but we’re also one of the few state-certified complex septic system installers serving the Boise Metropolitan area. Call today to arrange an on-site consultation anywhere in or near Boise, Nampa, Meridian, Middleton, Caldwell, McCall, New Plymouth, and Midvale.

Tags : #SepticTankInstallationSepticSystemInstallationSepticTankRepairUtilityTrenching

Location :
3494 Rush Creek Rd. Cambridge
Updated by A3 Underground, at 10 July 2026

Opening Hours

  • Monday 08:00 AM - 05:00 PM
  • Tuesday 08:00 AM - 05:00 PM
  • Wednesday 08:00 AM - 05:00 PM
  • Thursday 08:00 AM - 05:00 PM
  • Friday 08:00 AM - 05:00 PM

Products and Services

  • Septic Tank System Installation
  • Central and Large Soil Absorption
  • Septic tank locating
  • Septic tank repairs
  • Excavating
  • Backhoe service
  • Trenching
  • Utility trenching
  • grading
  • Snow plowing

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