There are various reasons for foundation underpinning, including to support the additional loads of a second-story addition. In some cases the existing foundation has settled or rotated at certain points and in other cases the interior configuration is modified, resulting in the removal or change of load-bearing walls. It should be noted that each foundation underpinning is unique and should be designed by a professional engineer or an architect. At Julian Construction we can review plans or obtain the engineering necessary for your project and complete the repair.