A3 Underground Construction

A3 Underground Construction is a fully licensed, highly experienced excavation contractor and septic system installer. We specialize in standard and complex septic system installation and repairs, underground utility trenching, drainage solutions, grading, excavation, and demolition services, and snow removal/plowing 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, we’re 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. Call today to schedule an on-site consultation. Whether you need joint trenching for stacking utilities, a large soil absorption system installed, demolition and lot clearing services, or a failed septic tank replaced, you can count on us to get the job done quickly, affordably, and to the highest of standards

Call A3 Underground Construction for the best value in standard and complex septic system installation, replacement, and repair; aerobic and nitrogen reduction systems; septic tank locating; septic tank enzyme treatments; stone drain field design and installation; leach line additions; site evaluation and planning services; stormwater management; agricultural field piping; retaining ponds, concrete spillways and culverts; French drains and trench drains; grease traps and interceptors; sewer lines; utility trenching and digging; joint trenching; backhoe services; and excavating/grading. We serve customers throughout central and southwest Idaho, including Boise, Caldwell, Cambridge, Cascade, Council, Donnelly, Eagle, Emmett, McCall, Meridian, Middleton, Midvale, Nampa, New Meadows, New Plymouth, Ontario, and Weiser. We are a fully licensed and insured excavation contractor and state certified septic tank installer for both standard and complex systems. Our family owned business has more than 30 years of industry experience and a reputation for superior workmanship, excellent customer service, and competitive prices. All work is code compliant, and completed on time and on budget.

1990

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