Abstract: A method of, and apparatus for, lining the interior surface of a passageway such as a pipeline, involving progressive installation of a liner on the interior surface of the passageway or on a substrate applied to the interior surface of the passageway by adhesively bonding the liner in position. The liner is bonded to the inner surface of the passageway, or onto a substrate applied to the inner surface of the passageway, using a substance which hardens and which together with the liner forms a rigid structure. The apparatus includes a body adapted to be moved along the passageway to progressively install the liner. The body also applies the adhesive for the bonding process.