I live in a terraced row whose back gardens are divided by wire fencing supported by concrete posts. The title deeds state that all fences are shared: does this mean the expense in replacing or repairing them is also shared?
Unless there’s also something in the deeds about keeping fences in a good state of repair you’re unlikely to be able to force your neighbour to pay for half of any work that needs doing. Generally householders are free to decide whether or not they wish to build or maintain walls or fences around their property. Fence sharing is not a good basis for harmonious relations between neighbours.