The disclosure discloses apparatus and methods for repairing defects such as porosity and/or edge delamination in composite laminates by infusion of flowable matrix material. In some embodiments, methods disclosed herein comprise infusing the flowable matrix material into a space in the composite laminate through the use of a formed hole extending at least partially through the composite laminate. In some embodiments, methods disclosed herein comprise infusing the flowable matrix material into a space in the composite laminate in a stepwise manner in order to obtain more complete filling of such space.