Yes @pelly, I inherited it and have tried everything short of digging it up. Pruned hard, hardly at all, sprayed it, the lot! What should I do, never had a climber before and the flowers are so pretty and tiny.
I think that might be the reason for it. Climbing roses only produce flowers at the top if stems are trained upright but they get most of their flowers growing on side shoots. It's worth moving it somewhere where you can train the main shoots horizontally and in tbe current spot you could try planting a floribunda or burbon rose. 😊
Not 100% sure but roses are tough so you can probably move it any time of the year. Autumn or spring would be best when it uses up less moisture. You might need to wait at least a year or two before it becomes fully established and gets a good amount of flowers. Worth adding some manure compost at the bottom of the planting hole so it keeps some moisture and feeds the soil at the same time.