If the OP lives in a sub-division here in California, normally, fences are "community property" shared by the property owners on both sides...maintenance and repair are at the expense of BOTH property owners.
That's USUALLY spelled out in the deed for the property.
In our sub-division, the "pretty side" of the fence alternates...
--------|________|--------|_______
Yep, and the HOA's CC&R defines the fence as such too. It is community property to be repaired and maintained by both parties.
