<p>The methods and approaches used for composite repairs depend on the sector of industry, and exhibit both common elements and distinctions. Here we consider the repair methods used in four exemplary applications: marine, wind, automotive, and aerospace. Repairs are often overlooked as a means of imparting greater sustainability to composite products, but they are generally the least costly route for doing so. Approaching each industry from a common repairs perspective, the similarities are highlighted while the different approaches are compared. The problems associated with current approaches are examined, along with active research methods for each application. Areas for potential to increase efficiency of repairs through automation and introduction of new materials are identified. The review of repair methods is intended to stimulate new approaches and opportunities to transfer the approaches and practices employed across industries.</p>