Sue and her engineer husband researched the engineering information and literature available concerning foundation repair in expansive soils. We are pleased to offer some of these previously published articles and studies on the subject. After reviewing this information Sue and her husband felt the only intelligent decision was to use the Bell Bottom Pier method of repair. We feel the same. This is the only thoroughly tested and proven method that will provide our customers with a permanent solution. Please click the following link to learn more about engineering information about foundation repair.