The SDI Family of Companies provides the global market with the very best technological innovations and specialized construction solutions. Built on the principles of hard work, integrity and honesty, SDI companies are known for their ability to provide turn key solutions to the clients we serve each day.
North American Drillers LLC (NAD), a proud member of the SDI Family of Companies, provides the global market with shafts approaching 20' (6m) in diameter and 2000' (600m) deep. This unrivaled expertise is used to meet the growing demands for larger diameter ventilation and access shafts for sewer systems, tunnels, infrastructure, and raw water intake. NAD's advanced ground stabilization resources, world-renowned drilling expertise and specialized equipment are all proficiently coordinated by an experienced team of engineers.
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