Before fixing a foundation wall, you should first determine the problem. There are many possible conditions, ranging from shrinkage or step cracking, which could be repaired by epoxy injections or re-pointing the mortar joints, to major differential settlement that would require costly and involved repairs. A home inspector can identify what the symptoms may indicate and where to start to remedy the problem. If it is something that is in need of a specialist, he/she will be in a better position to make this type of call. Regardless of the degree of the cracking or movement noted, if you are concerned about how to fix or repair the damage, a home inspector may be able to identify what the problem is and what repairs might be needed.