Who pays for a shared gutter on a terrace?

Why terraces share their rainwater system

A terrace is a row of houses built as one block. The roof frequently carries on across several houses without a break, and the eaves gutter follows it. Where two houses meet there may be one downpipe collecting water from both roof slopes. Some terraces have a parapet gutter instead, a channel finished in lead or a similar sheet metal, tucked behind the parapet wall along the roof edge, that crosses several properties before it reaches an outlet.

The result is that one blocked or broken section can affect two or three houses. Water that cannot get out of your neighbour's gutter backs up along the run and overflows at the lowest point, which may be your front wall. Equally, a leak at the joint where two lengths meet can soak a party wall and show as damp on either side.

On Georgian and Victorian terraces in Bath, the arrangement can be more complicated still, with box gutters or parapet gutters hidden in the roof structure and serving several houses. Those parts are not visible from the street, and nobody notices a fault until water comes through a ceiling. That is why it helps to know exactly what is shared and what is not, long before something fails.

Finding out who owns what

Ownership is a legal question, and the answer sits in your property papers. Do not guess, and do not rely on what a previous owner told you.

• Your title deeds and plan. The title register and plan from HM Land Registry show your boundary. The deeds may include a clause saying who maintains shared parts such as the roof, gutters and downpipes.
• Covenants and rights. Some deeds set out a duty to contribute to the upkeep of shared drains or roof drainage, and some say nothing.
• Your freeholder, if the house is leasehold. In a converted terrace the lease may leave the roof and gutters to whoever owns the freehold, or to a managing agent acting for them, with a service charge passed on to flat owners.
• Physical evidence. A downpipe that sits astride the party wall and serves both roofs is usually treated as shared in practice, while a gutter fixed only to your fascia and draining only your slope is typically yours.

We cannot give legal advice, and what applies to your house depends on your papers. If the position is unclear or disputed, a solicitor can read the deeds and advise. Citizens Advice also has general guidance on housing and neighbour matters.

How repairs are usually agreed

Where a run is shared, the usual approach is practical. The neighbours who benefit from the repair agree to split the cost fairly, most often in equal shares or in proportion to the length of gutter that serves each house. Where one house caused the damage, for example by neglecting its own section, that can change the split.

Start with a conversation, not a letter. Show your neighbour the problem, ideally with photographs from a roofer, and explain what happens if it is left. Most people would rather share a modest repair than deal with a wet wall later. Then put what you agree in writing, even if it is only an email: who will arrange the work, what it covers, the price and how it will be divided.

If you want to ask more than one person to contribute, such as a whole row, a single quote and a single contractor keep it simple. Ask for the quote to be broken down house by house, so every owner sees exactly what they are paying for.

If a neighbour refuses and the fault is on their side, the position gets harder. Keep copies of your messages and photographs, and consider a mediation service or legal advice before arranging work on land or roof that is not yours. Do not go onto a neighbour's roof or property without their permission.

Getting the work specified before you split the bill

Nobody wants to pay a third of a bill they cannot read. A survey that names the faulty parts and the repair needed removes most of the argument. Is it a cracked joint, a sagging length, a blocked outlet, a failed lead lining? Each has a different cost and a different answer to the question of whose fault it was.

For a simple blocked pipe, the cost is small and the dispute often evaporates. Our guide to a blocked downpipe shows what can be cleared safely from the ground. For a run that is old, undersized or leaking at several joints, replacing the whole length at once is usually cheaper and more fair than patching in turns. Typical UK guttering costs are £30 to £70 per metre according to MyBuilder's 2026 guide, with scaffold adding £20 to £40 per square metre where needed, so a shared scaffold across several houses is a real saving. Your fixed quote follows the survey.

Material is another shared decision. If one house has cast iron and its neighbour has plastic, a repair can leave the row looking patchy. In a conservation area or on a listed building, check with B&NES planning before changing the material, as the whole frontage may be judged together.

Keeping the next bill small

Shared systems last longest when everyone looks after their part. A gutter cleaned on a regular schedule rarely causes trouble. Our page on how often to clean gutters suggests a sensible routine, and doing it together, with one visit covering the whole row, is usually cheaper than each house paying separately.

If the roofline is tired generally, an upgrade across the terrace can be planned in one go. Our page on roofline upgrades covers what is involved, from fascias and soffits to new gutters, and why doing the whole run together keeps the lines level and the joints sound.

When you are ready, you pay nothing for our survey, and the photographs we take cover the shared sections too, wherever we can reach them safely. We then give you a written price, set out so that each owner sees what applies to their house, along with a note of which brackets and joints sit on the boundary between two properties. Our gutters, soffits and fascias page lists everything we cover across Bath and the towns within 30 road miles.