In order to retrofit your home, the following must be completed. The cripple walls need to be braced with plywood. The house needs to be bolted to the foundation and the floor of the house needs to be attached to the braced cripple walls. If any one of these three steps is not completed, your home could fall off its foundation during an earthquake.In order to retrofit your home, the following must be completed pool demolition phoenix. The cripple walls need to be braced with plywood. The house needs to be bolted to the foundation and the floor of the house needs to be attached to the braced cripple walls. If any one of these three steps is not completed, your home could fall off its foundation during an earthquake.