Cornerstone Excavation LLC

James Swift – Excavation Contractor
112 Sky Ridge Rd.
Garden Valley, ID 83622


Since 2003, the owner, James Swift has been in the heavy civil industry working with some of the best companies in the Northwest.  As a fully licensed, bonded and insured company, we are pleased to offer services such as excavation, underground utilities, demolition and septic installation.  With a solid background and a desire to provide quality work backed by honesty and integrity, we can take on any project you have, no matter how big or small.