Ala. Code § 35-7-2

Where a partition fence has been, or may hereafter be established by agreement of adjacent owners of land, each to keep up a particular part of such fence, if either fails to keep such part assigned to him in good repair, it shall be lawful for the other joint owner to repair such fence, the cost thereof to be paid by the one so failing; and if they cannot agree as to the amount to be paid for such repairs, the same is to be ascertained and collected as provided by this chapter.