Abstract: A method and apparatus for the manufacture of a composite component by locating a composite lay-up between a mould surface and a backing surface, each surface forming a wall of a respective pressure chamber. Securing the chambers together to retain the lay-up therebetween with at least one of the said walls movable relative to the other, under the influence of pressure in the chamber incorporating the movable wall, to sandwich the composite therebetween. Then circulating fluid under pressure through each of the chambers at substantially the same pressure to compress the composite lay-up between said mould and backup surfaces to compact the composite lay-up. While the fluid is circulating elevating the temperature thereof to effect curing of the composite. One of the walls between which the composite lay-up is located is of a flexible or semi-rigid construction and the opposing surface of the other wall is shaped to impart to the composite the required surface contour in the product.