Standard & Complex Septic Tank Repair & Installation Services

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Office:Contact A3 Underground, Boise, Idaho Septic Contractor    Cell:Contact A3 Underground, Boise, Idaho Septic Contractor
We Serve Customers Throughout the Boise Metropolitan Area

Boise - Nampa - Meridian - Middleton - Caldwell - McCall - New Plymouth - Midvale

Boise Backhoe, Demolition & Grading Services

Licensed Grading & Excavation Contractor Serving Boise,
Washington County, & Nearby Areas

One Call Does It All -- Complete Excavation, Demolition, Grading and Backhoe Services For Homes, Industrial Properties, Building Pads, Driveways, Roads, Sewage Systems, and More!

A3 Underground Construction is the best choice for grading, excavating, and demolition services in the Boise Metropolitan Area. We have over 3 decades of experience in providing a full range of high-quality, cost-effective excavation services. Our services include, but are not limited to:

  • Grading for private roads, driveways, walkways, and building pads
  • Lot clearing and tree removal
  • Home demolition
  • Building site preparation
  • Engineering drainage systems
  • Trenching for sewers, utilities, and irrigation systems
  • Backhoe services
  • Ground leveling services
  • Swimming pool removal
  • Dirt moving and compaction
  • Removing and hauling debris
  • Backfilling for foundations
  • Digging for concrete footings, sewers, ponds, and more

We welcome grading, demolition and excavating jobs of nearly any size and scope, from providing the clearing and grading for a large-scale construction project to preparing a small foundation for a new manufactured home. Our reliable staff are well-trained to safely and efficiently operate our updated fleet of construction and demolition equipment, and always remain in compliance with the industry's best practices, county and city building codes, and current OSHA safety guidelines.

Expert Staff, Well-Maintained Excavating & Grading Equipment, Exceptional Workmanship & Personalized Service

A3 Underground Construction, we understand the need for high quality workmanship that gets done on time, on budget, and in accordance with building construction and design specs. That's why we are trusted by countless building contractors, commercial companies, and private individuals throughout Boise, Caldwell, Nampa, McCall, and nearby areas. They rely on us because we always deliver exceptional results and personalized customer service on every job, no matter how large or small.

Call Today for Great Rates on Excavating, Grading, and Demolition Services in Boise, Nampa, Caldwell, McCall, Weiser, and Nearby Areas

Contact A3 Underground Construction today to schedule a consultation and quote. We are proud to serve the entire Boise Metropolitan area, including Boise, Nampa, Caldwell, McCall, Weiser, and surrounding areas. A3 Underground Construction is fully licensed, bonded, and insured.

Why Choose A3 Underground Construction

  • Over 30 Years of Grading, Excavation & Demolition Experience
  • Extremely Knowledgeable & Dependable Staff
  • Building Pad, Driveway, and Road Grading
  • Pipeline, Sewer & Utility Trench Digging
  • Backhoe Services for Lot Cleaning & Site Preparation
  • Competitive Bids and Personalized Consultations
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Send Us a Message

For fastest response, please call (208) 257-3208, (208) 630-3017


Highly professional, always a great job for a fair price. You can't go wrong with this company for your excavation needs.

Linda Coyle Standifer Via Facebook Review

They have done many jobs for me and friends Always happy with the work done!

Susan Haggard Via Facebook Review

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We provide septic, grading, excavation, trenching, and drainage services throughout central and southwest Idaho, including but not limited to:

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