A3 Underground Construction provides expert septic system installation and repairs throughout Boise, McCall, Weiser, Middleton, Eagle, Caldwell, New Plymouth and surrounding areas. We are fully licensed and insured, and certified by the State of Idaho to install, repair and maintain complex septic systems, including aerobic, microbic, and nitrogen reduction systems. As a full-service septic system installer and excavation contractor, we’re also qualified to provide a wide range of other services such as demolition, excavation, grading, agricultural drainage solutions, and underground utility trenching. Call today to schedule an on-site consultation. We have more than 30 years of industry experience and a reputation for superior workmanship, excellent customer service, and competitive prices.
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