A3 Underground Construction
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A3 Underground Construction
Experienced Excavation Contractor & Septic Tank Installer Serving Boise, Caldwell, Nampa & the Surrounding Area. A3 Underground Construction is a fully licensed, highly experienced excavation contractor that specializes in septic system pumping, installation, and repair, underground utility trenching, drainage solutions, grading, excavation, and demolition services.

We have more than 30 years of industry experience and a reputation for superior workmanship, excellent customer service, and competitive prices. With our diverse range of services, large fleet of excavating equipment, and highly skilled team, A3 Underground Construction is able 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.
Services
A3 Underground Construction is the best choice for effective and reliable septic tank pumping services in Weiser, Cambridge, Council, Middleton, and surrounding areas. We have over 30 years of experience in septic system services, and are well known for our expert workmanship, competitive pricing, and honest advice.
Over 30 Years of Experience in Standard and Complex Septic System Design and Installation. A3 Underground Construction offers high quality, comprehensive, and competitively priced septic system installation services for Boise, Nampa, Caldwell, McCall, and nearby areas. As a fully licensed and insured excavation and septic system contractor, we are qualified to provide a complete range of underground septic system design and installation services.
A3 Underground Construction provides Boise, Nampa, Emmett, Meridian, Caldwell, and nearby areas with high quality, cost-effective septic tank system repairs. We have over 3 decades of experience in installing, repairing, and maintaining underground septic systems for residential, agricultural, and commercial clients, and have become known for exceptional workmanship, superior service, and competitive pricing.
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.
A3 Underground Construction offers comprehensive trenching services for Boise, Nampa, Caldwell, McCall, Weiser, and surrounding areas. Over the last 30 years, our owners have served thousands of satisfied homeowners, farmers, ranchers, and commercial and industrial businesses and built an excellent reputation.
Reviews (2)
Susan Haggard
Susan Haggard
Mar 29, 2019
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They have done many jobs for me and friends Always happy with the work done!
Linda Coyle Standifer
Linda Coyle Standifer
Mar 25, 2019
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Highly professional, always a great job for a fair price. You can't go wrong with this company for your excavation needs.