Hall Engineering Group designs a very unique and strong Carbon Fiber Repair to earthquake damaged foundations. Soon to be on Oklahoma City KOCO News. Foundations of homes in many areas of Oklahoma have been severely damaged by earthquakes. This repair makes homes stable and safe again after the damage occurs. Click here for details. When looking for someone to evaluate the condition of your foundation, we understand you have many options, ranging from repair contractors, builders, friends, general inspectors and, perhaps, family and friends. Of these options, Hall Engineers will be your best choice when hiring an engineer.