Helical piers are ‘giant screws’ that are driven into the ground to provide foundation support to many different type of structures. The purpose of a helical pier is to transfer the load of the structure through the unsuitable soil to a stronger, more suitable soil deeper in the earth. They can be used in foundation repair or new construction projects.
A helical pier is a steel pipe piling with multiple twisted helix plates welded to the lead section of the piling. A typical helical can have one to three helix plates ranging from 8″ to 16″ inches in diameter. They are hydraulically driven into the ground to reach the depth of the load-bearing underground strata.
An average 1500-2000 sq ft home may cost $20,000-$30,000.