An adjustable mounting assembly comprising: a wall channel arranged to be fixedly connected to a wall, the wall channel having a base; an adjustment channel arranged to fit at least partially within the wall channel; and a connection means arranged to connect the wall channel to the wall and to adjustably connect the adjustment channel to the wall channel such that the adjustment channel can be moved towards and away from the base of the wall channel, wherein the connection means comprises: a fixing block arranged to fit within the wall channel and between the wall channel and the adjustment channel, the fixing block having a first aperture therethrough, wherein the first aperture is arranged to receive a wall fixing member, the wall fixing member being arranged to pass through the base of the wall channel so as to secure the fixing block to the wall channel and the wall channel to the wall; and an adjustable fixing member arranged to pass through the adjustment channel and into the fixing block, so as to secure the adjustment channel to the fixing block, a head of the adjustable fixing member being within the adjustment channel in use; wherein movement of the adjustable fixing member is arranged to provide the movement of the adjustment channel towards and away from the base of the wall channel, and the adjustment channel is arranged to receive a profile strip to cover the wall fixing member and the adjustable fixing member, and wherein the adjustment channel has a first aperture arranged to allow the wall fixing member to pass therethrough and suitable for allowing the wall fixing member to be tightened therethrough. a wall channel arranged to be fixedly connected to a wall, the wall channel having a base; an adjustment channel arranged to fit at least partially within the wall channel; and a connection means arranged to connect the wall channel to the wall and to adjustably connect the adjustment channel to the wall channel such that the adjustment channel can be moved towards and away from the base of the wall channel, wherein the connection means comprises: a fixing block arranged to fit within the wall channel and between the wall channel and the adjustment channel, the fixing block having a first aperture therethrough, wherein the first aperture is arranged to receive a wall fixing member, the wall fixing member being arranged to pass through the base of the wall channel so as to secure the fixing block to the wall channel and the wall channel to the wall; and an adjustable fixing member arranged to pass through the adjustment channel and into the fixing block, so as to secure the adjustment channel to the fixing block, a head of the adjustable fixing member being within the adjustment channel in use; a fixing block arranged to fit within the wall channel and between the wall channel and the adjustment channel, the fixing block having a first aperture therethrough, wherein the first aperture is arranged to receive a wall fixing member, the wall fixing member being arranged to pass through the base of the wall channel so as to secure the fixing block to the wall channel and the wall channel to the wall; and an adjustable fixing member arranged to pass through the adjustment channel and into the fixing block, so as to secure the adjustment channel to the fixing block, a head of the adjustable fixing member being within the adjustment channel in use;