Helical Drilling is a geotechnical design/build contractor focused on providing innovative, efficient, adaptable geotechnical engineering and ground construction solutions to general contractors, owners and engineers throughout the Northeastern United States. For almost 30 years, Helical has specialized in Geopier® Rammed Aggregate Pier® ground improvement, earth retention, grouting, deep foundations and piles, underpinning and additional geotechnical construction solutions. Comprised of geotechnical engineers, construction managers, and field crews under one roof, HELICAL is the premier turnkey firm for a multitude of geotechnical design-build solutions.