A3 Underground Construction

Boise, US

A3 Underground Construction: Your Trusted Partner for Septic, Excavation, and Drainage Solutions in Boise, Idaho

A3 Underground Construction is a fully licensed and insured excavation contractor specializing in septic system installation and repair, underground utility trenching, drainage solutions, grading, excavation, and demolition services. We have over 30 years of experience and a reputation for superior workmanship, excellent customer service, and competitive prices. Our diverse range of services, large fleet of excavating equipment, and highly skilled team allow us to meet the needs of residential, agricultural, commercial, and industrial clients throughout Boise, Nampa, Emmett, Meridian, Caldwell, Middleton, Weiser, McCall, Eagle, New Plymouth, and surrounding areas.

We are committed to providing high-quality underground construction services for private property owners, farmers, ranchers, building contractors, and commercial businesses. Our team has the hands-on experience and extensive industry knowledge to install engineered septic systems of all kinds. As a full-service septic system installer, we can handle every aspect of your project, from initial planning and site evaluation to system design, permitting, trenching, and grading.

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Services

Septic Tank Installation

We offer professional septic tank installation services for both standard and complex systems. Our team is experienced in installing a variety of septic systems, including aerobic and nitrogen reduction systems.

Septic Tank Repair

We provide comprehensive septic tank repair services, including septic tank locating, septic system troubleshooting, septic tank repairs, leach field repair, and more.

Grading & Excavating

Our experienced team provides a wide range of grading and excavating services, including lot clearing, site preparation, building pads, driveways, roads, and more.

Utility Trenching

We specialize in underground utility trenching for water, sewer, storm, gas, electric, phone, and cable lines. We offer joint trenching and large cable trenching services.

Culverts & Drainage

We provide expert drainage solutions, including storm water management, agricultural field piping, retaining ponds, concrete spillways, culverts, French drains, trench drains, grease traps, and interceptors.

Sewer Lines

We offer professional sewer line installation and replacement services. We are the best choice for sewer line replacement in the Boise area.

Backhoe Services

We have a large fleet of excavating equipment, including backhoes, to handle any job, big or small.

Excavating/Grading

We provide complete excavating and grading services for a variety of projects, including residential, commercial, and industrial.

Why Us?

Licensed and Bonded: A3 Underground Construction is a fully licensed and bonded excavation contractor, ensuring your peace of mind and project security.
Environmental Responsibility: Contact us today for a free estimate and consultation to discuss your excavation needs.
Positive Customer Reviews: We are dedicated to continuous improvement and strive for excellence in everything we do.
Advanced Equipment & Technology: Our project managers are highly skilled in coordinating resources and ensuring projects stay on track.

Testimonials

“A3 replaced my sewer line and water line at the same time. They were prompt, respectful, and did a thorough job. I'm very grateful for the work A3 completed for me.”

Heather U.