Ground screw pile installations is very faster than normal concrete based ,it could be tightening screwed by special screw ground pile machines.

Helical piles foundation screws are installed using hydraulic machinery with rotary drive motors or torque motors. The pile is screwed into the ground while applying torque to advance it. The helical plates on the pile create a "screw effect" as they penetrate the soil, providing uplift and compression resistance.

The installation cost for ground screws in Australia can vary depending on several factors, including the location, size of the project, and the specific ground conditions.