Birmingham Quality Fence gets drawn into this more often than you would expect, usually when someone has decided to replace a fence and discovered the neighbour has views about it.
The short version under Alabama law: a fence built on the line between two properties is a partition fence, and the general principle is that both adjoining owners share responsibility for it, because both benefit from it.
A fence built entirely on your own side of the line is a different thing — it is yours, and so is the bill.
We build fences, we are not attorneys, and nothing here is legal advice. Anything contested is worth taking to a property attorney. Below is the general framework, and more usefully, the practical steps that stop this becoming a dispute at all.

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Three provisions cover the basics:
Statutes are amended and courts interpret them, so treat this as orientation rather than a current legal opinion. If money or a boundary is genuinely in dispute, that is a question for an attorney rather than a fence contractor.
Is the fence on the line, or on one side of it?
On the line, it is a partition fence and the shared-responsibility framework applies. Set back entirely within one owner’s property, it belongs to that owner, who pays for it and maintains it — and who can generally do as they like with it within local rules.
Plenty of people build just inside their own line deliberately, precisely to keep the fence unambiguously theirs. It costs you a few inches of yard and removes the entire question.
Almost every fence dispute we see traces back to nobody actually knowing where the boundary is.
An existing fence is not evidence of the line. Fences get built in the wrong place, and they get rebuilt in the same wrong place because the last one was there. Where the mower has always stopped is not evidence either.
A survey is the only definitive answer, and against the cost of a fence it is minor. It also protects you — a fence built over the line is a problem that grows more expensive the longer it stands, and in some circumstances long-standing occupation of land can affect claims to it.
Not a legal requirement, but it resolves more than the statutes do. A conversation before the quote tends to prevent the argument after the posts are in.
Worth covering:
If you agree to share, put it in writing — even an email exchange is better than a handshake. Memories diverge, and houses change hands.
There is a common expectation that the finished side of a fence faces outward, toward the neighbour and the street, with the posts and rails on the owner’s side. It is convention rather than statute in most cases, though an HOA or a local ordinance may make it a requirement.
Worth settling in the conversation rather than discovering afterwards. Some styles, including good-neighbour board-on-board, look the same from both sides and remove the issue entirely — see our custom fence design page.
You can generally build entirely on your own land without their agreement, subject to local height and permit rules and any HOA restrictions. That is the usual practical answer when cooperation is not available.
What you should not do is build on the line and send them an invoice, or build over the line and hope nobody measures. Both create problems worth more than the fence.
Separate from any of this, and they bind regardless of what you and the neighbour agree. Height limits, permitted materials, setbacks and permit requirements vary across the metro, and an HOA may specify style and colour.
Pool enclosures are governed by safety code rather than preference — see our pool safety compliance page.
Once you know where the line is, we will walk it with you and quote the work. Free on-site estimates. See our fence cost breakdown, or call 205-719-8813.
Birmingham Quality Fence works throughout Birmingham and the surrounding area, including Hoover, Vestavia Hills, Mountain Brook, Homewood, Trussville, Alabaster, Pelham, Chelsea, Helena, Gardendale & more.