Water Leak From the Flat Above: Who Pays and Who Fixes It

Reviewed by the DCI Leak Detection team · Last updated September 2026

Water is dripping through your ceiling and it is not raining. Whether you searched for "water leak from flat above who pays" or "leak from upstairs flat", the answer for England and Wales turns on two things: what caused the leak, and what your lease says. This guide covers both, then explains how the source is found when nobody upstairs can see it either.

The leak is theirs, the damage is yours

A lease splits a building into parts. Your demise is the bit you own: the rooms, the plaster, the fittings and, in most leases, the pipes and appliances that serve only your flat, even where a pipe runs outside your walls. The Leasehold Advisory Service (LEASE) and Citizens Advice both put it that way. Leaseholder responsibility for a water leak stops at the edge of their demise.

So a leak from their bath seal, radiator valve or appliance hose is theirs to stop and theirs to repair. The stained ceiling and ruined carpet are in your demise, so putting those right falls to you, your insurer or the block's insurer, unless you can pass the cost back to whoever caused it. Fixing the source and paying for the damage are two separate questions.

Who pays turns on negligence, not on where the water came from

The upstairs owner is not automatically liable just because the water came from their flat. You can only make a claim against an upstairs neighbour if you can show negligence: they caused the leak (a bath left running), or they knew about a fault, or should have known, and did nothing (a drip caught in a bucket for three weeks). LEASE, Citizens Advice and Harrow Council's leaseholder guidance all apply that test; Harrow puts it plainly: if the leak was an accident, or you cannot prove negligence, you cannot claim.

A hose that split overnight with no warning is bad luck. Where they kept their flat in good repair and had no idea anything was wrong, your losses go through insurance instead. The same test applies in reverse if it is your leak flooding the flat below.

What the lease and the block buildings insurance usually do

In most blocks the freeholder or a management company insures the whole building under one policy, paid for through the service charge. That block policy normally covers escape of water damage to the fabric of both flats: your ceiling, plaster, decoration, drying out and fitted units. It does not pay to repair the pipe that leaked, and it does not cover anyone's belongings. The Association of Residential Managing Agents (ARMA) and LEASE both say so. A good block policy also carries trace and access cover for finding the source; see is trace and access covered by home insurance.

You cannot usually claim on the block policy yourself. The freeholder or agent holds it, so you report the leak to them and ask them to open the claim; most agents have a block management water leak procedure.

The excess

Escape of water often carries its own, higher excess, and the lease decides who pays it. Some leases let the freeholder recover it from the leaseholder whose flat the leak came from. Others put it through the service charge, so every flat pays a share. ARMA's guidance says there are no hard and fast rules and tells agents to read the lease first. If you are asked to pay the whole excess for damage you did not cause, ask which clause allows it.

Your contents insurance, and theirs

Your carpets, sofa and television are yours to insure. The block policy does not touch them. You claim on your contents insurance, pay your excess, and your insurer chases the flat above if it thinks there was negligence. Insurers routinely pay first and look at fault afterwards.

The upstairs occupier's contents policy may include a liability section, sometimes called occupier's liability or third party cover, which can pay for damage they negligently cause to your property. Two cautions from ARMA and Harrow's guidance: many contents policies do not include it, and it only responds where negligence is shown.

When the leak is in a communal pipe or riser

A leak from upstairs is not always the upstairs flat's fault. A soil stack, a shared riser, a communal roof tank or a leaking flat roof serves more than one flat, and in most leases those are the freeholder's to maintain. Freeholder responsibility for a water leak in a communal pipe means the agent arranges the repair and claims on the block policy or recovers the cost through the service charge.

The agent also matters when the flat above will not engage. LEASE notes that the landlord or agent usually has a power under the lease to get into a flat to investigate, and can require the leaseholder to do repairs. If the owner is absent or denies there is a leak, the agent is who you go to.

What to do today

1. Make your flat safe. Switch the electrics off if water is near lights or sockets, catch drips, move furniture, lift rugs. Our guide on water leaking through the ceiling covers a bulging ceiling and the first hour.
2. Photograph everything, with times, and keep a written note.
3. Knock upstairs. Leaks are often invisible where they start. Ask them to check under the bath, behind the washing machine and around the toilet, and to turn their stop tap off if they cannot find it.
4. Tell the freeholder or managing agent in writing the same day. They open the block claim and can reach the flat above.
5. Tell your contents insurer before you throw anything away or pay for permanent repairs. Our guide to making a water leak insurance claim covers the order of work.
6. Get the source found and written down. Insurers expect you to take reasonable steps to stop the leak and limit the damage, and a report that names the cause does both.

Water coming through ceiling from flat above: how the leak gets traced

Many flats in Cornwall and Devon are converted Victorian terraces or seafront blocks, where old pipe runs wander between demises and the lease plan is the only map. Water travels along a joist or down a pipe run and surfaces a room away from where it escaped, so the upstairs flat often looks dry and "we cannot find anything" is usually true. This is where trace and access comes in; what is trace and access explains the term.

The job starts in your flat, because that is where the evidence is. Thermal imaging on the ceiling shows the shape and direction of the wet area: a warm plume points at a hot pipe, a cold patch at a waste or cold feed. A moisture meter then maps how far the water has spread. Then the work moves upstairs, with the neighbour's agreement or the agent's authority. Pressure testing proves which circuit is losing water, and baths, shower trays, toilet pans and appliance connections are checked under load, because a seal that only fails when someone stands in the shower is a common cause. Where a pipe is buried in the floor, tracer gas or acoustic listening pinpoints the joint so one board comes up rather than the whole floor.

The result is a report naming the source, the cause and the extent of the damage. Both insurers work from the same document, and the negligence question is answered by evidence rather than argument.

Who usually pays for what

Getting your excess and uninsured losses back

Searches for water leak from flat above compensation are asking one thing: can I get back what insurance did not pay? That means your contents excess, your share of the block excess and anything uninsured. Yes, if the flat above was negligent. No, if it was an accident.

Start with a letter. Say what happened, why they were at fault, what it has cost, and attach the photographs and the leak report. Give them a reasonable time to reply and say that court is the next step. Citizens Advice, LEASE and MoneySavingExpert all give the same advice: settle if you can.

If they refuse, a claim of £10,000 or less goes through the small claims process in the county court. Once a claim of that size is defended, both sides must attend a free telephone mediation run by HM Courts and Tribunals Service before any hearing, and missing it can get a case struck out. Court fees are not always recovered, and a judgment against someone who cannot pay is worth little. Get legal advice before you issue, and sooner if the sums are large or the leak is still running.

If you rent your flat

If you rent, the leak is your landlord's to sort out with the block. Under section 11 of the Landlord and Tenant Act 1985 your landlord must keep the structure and the water, heating and sanitation installations in repair, and Citizens Advice says the landlord is usually responsible for repairing leak damage in your flat. The duty starts when they know, so report it in writing the same day and keep a copy. Your landlord then deals with the freeholder and the flat above. Your belongings are still yours to insure, and if the upstairs occupier was negligent, that claim is yours to make.

Sources: The Leasehold Advisory Service (LEASE), Citizens Advice, ARMA Guidance Note C09, Harrow Council leaseholder guidance, GOV.UK (small claims mediation), Shelter, Naylor LLP and Helix Law. Checked September 2026.