HELICAL PIER INSTALLATION VIDEO May 9, 2019July 25, 2017 by ACS Advanced Construction Services This mechanical room foundation in Eden Prairie, MN settled down and away from the building foundation. By installing helical piers, the settlement was recovered and the foundation is stabilized. You can see the helical pier process in video below. Settled foundation? Cracked walls? Doors and windows that don’t close? Request a free estimate or call 952-562-8100 to discuss your next project.