Quick answer
In a rented home, the landlord is usually responsible for keeping drains, toilets and waste pipes in repair. A tenant may have to pay if the blockage was caused by misuse, such as flushing wipes or pouring fat down the sink. Shared drains outside the property are generally the water company's responsibility. Always check the tenancy agreement.
Key takeaways
- Landlords are usually responsible for drains, sanitary fittings and the structure.
- Tenants may be charged for blockages they cause, such as wipes or cooking fat.
- Shared drains and lateral drains outside the boundary are generally Thames Water's.
- Report blockages to the landlord or agent promptly and in writing.
- This is general information, not legal advice: check your tenancy agreement.
This article is general information about the usual position in England, not legal advice. Every tenancy is different, so check your agreement and seek advice if you are in a dispute.
Who is responsible for a blocked drain in a rented property?
In most rented homes, the landlord is responsible for repairing and maintaining the drains, while the tenant may be responsible for clearing a blockage they caused through misuse. The cause of the blockage, and the wording of the tenancy agreement, usually decide who pays.
For most residential tenancies in England of less than seven years, section 11 of the Landlord and Tenant Act 1985 requires the landlord to keep the structure and exterior in repair, including drains and external pipes, and to keep the installations for water and sanitation, such as basins, sinks, baths and toilets, in repair and proper working order.
Tenants, in turn, are expected to use the property in a “tenant-like manner”. That means using drains and toilets sensibly and doing small jobs a reasonable occupier would do, such as clearing hair from a plughole.
When does a tenant have to pay for a blocked drain?
A tenant may have to pay for a blocked drain if the blockage was caused by something they, their household or their guests put down it. If the drain blocked because of wear, damage or a defect, the cost usually falls to the landlord.
| Likely cause | Usually pays |
|---|---|
| Wet wipes, nappies or sanitary products flushed down the toilet | Tenant |
| Cooking fat, oil or food waste poured down the kitchen sink | Tenant |
| Children’s toys or other objects in the toilet | Tenant |
| Tree roots growing into a cracked drain | Landlord |
| Collapsed, cracked or displaced pipes | Landlord |
| Poor drain design, such as a pipe with too little fall | Landlord |
| Blockage in a shared sewer or lateral drain outside the boundary | Usually the water company |
The difficulty is that the cause is not always obvious. A drain engineer can usually tell what caused a blockage once it is cleared, and a CCTV drain survey records video evidence of the inside of the pipe. That can settle a disagreement fairly, for example by showing root ingress or a collapse rather than wipes.
What does the tenancy agreement say?
The tenancy agreement is the first place to look, because many agreements include a clause about blockages caused by the tenant. Some say the tenant must pay to clear blockages caused by misuse; others set out how repairs should be reported and who may arrange them.
A clause cannot normally remove the landlord’s basic repairing duties under the 1985 Act, but it can make the tenant’s responsibilities clearer. If the wording is unclear, Citizens Advice and Shelter both publish free guidance for tenants.
Who is responsible for drains in a block of flats?
In a block of flats, responsibility usually depends on which part of the drainage system is blocked. The pipework serving only your flat is normally the responsibility of your landlord, while drains shared by the building are usually the freeholder’s or management company’s under the lease.
- Inside your flat: sinks, toilets, baths and the waste pipes serving only your flat are usually the landlord’s to repair, with tenants responsible for misuse.
- Shared drains within the building’s boundary: soil stacks and drains used by several flats are often managed by the freeholder or managing agent and paid for through the service charge.
- Shared drains beyond the boundary: since 1 October 2011, shared private sewers and lateral drains have generally been the responsibility of the water company, which across London is Thames Water.
If you are a tenant in a flat, you do not need to work all of this out yourself. Report the problem to your landlord or letting agent and let them deal with the freeholder or Thames Water if needed.
How should a tenant report a blocked drain?
Report a blocked drain to your landlord or letting agent as soon as you notice it, and do it in writing so there is a clear record. Early reporting stops a small problem becoming a flood and helps show you acted responsibly.
- Stop using the affected sink, toilet or shower if water is backing up.
- Take photos or a short video of the problem, including any outside manhole or gully.
- Email or message your landlord or agent with what happened, when it started and which fittings are affected.
- If sewage is coming into the home, phone as well and say it is urgent.
- Keep copies of all messages and any replies.
Avoid booking and paying for work yourself without the landlord’s agreement unless your tenancy allows it, because you may not be reimbursed. If you cannot reach anyone and sewage is entering the home, ask your landlord or agent what their emergency procedure is, and keep a record of your attempts to contact them.
What should landlords and letting agents do?
Landlords and letting agents should respond to drain reports quickly, get the blockage cleared by a competent drainage company, and find out what caused it. Knowing the cause decides who pays and whether there is a bigger fault to fix.
- Act promptly: sewage backing up into a home is a health hazard and can make parts of it unusable.
- Ask for the cause: a short written note from the engineer, or CCTV footage, helps if you want to recharge a tenant.
- Look for repeat problems: repeated blockages often point to a damaged drain rather than tenant misuse.
- Brief new tenants: a simple note that only pee, poo and toilet paper should be flushed, and that fat goes in the bin, prevents many call-outs.
- Survey older properties: many London rentals are Victorian or Edwardian houses with clay drains that can crack or be invaded by tree roots.
We work with landlords, letting agents and tenants right across London, from Haringey and Enfield to Wandsworth. Our blocked drains service covers houses and flats, and a CCTV survey can be added where you need to see the cause.
Need a blocked drain cleared in a rental?
Whether you are the landlord, the agent or the tenant with permission to arrange it, Pipe & Drain Cleaners can help. Call 0800 470 0946 24/7, or book a time slot online. You will get a fixed quote before any work starts.
Frequently asked questions
Can a landlord charge a tenant for a blocked toilet?
A landlord can usually charge a tenant for a blocked toilet if the tenant caused it, for example by flushing wipes, sanitary products or a child's toy. If the blockage came from a damaged or badly designed drain, the landlord normally pays. Evidence from the engineer, such as photos or CCTV footage, helps both sides agree on the cause.
Can I deduct drain clearance costs from the deposit?
A landlord may be able to claim from the deposit for a blockage the tenant caused, but it must be supported by evidence and can be challenged through the tenancy deposit protection scheme. Costs for normal wear, ageing pipes or defects generally cannot be taken from the deposit. This is general information, so seek advice in a dispute.
How quickly should a landlord fix a blocked drain?
There is no single fixed deadline, but a landlord is expected to carry out repairs within a reasonable time, and urgent problems need a faster response. Sewage backing up into the home, or the only toilet being unusable, should be treated as urgent. Report it in writing so there is a record of when the landlord was told.
Who do I call if the blocked drain is shared with neighbours?
If a drain shared with neighbours is blocked outside your property boundary, it is generally Thames Water's responsibility in London, and you can report it to them. If you rent, tell your landlord or agent as well. A drainage engineer can confirm where the blockage is if you are unsure whether it is shared.
Is a letting agent responsible for blocked drains?
A letting agent is not usually responsible for the cost, but if the agent manages the property they are often the person who arranges repairs for the landlord. If the agent only found the tenant, repair requests usually go to the landlord directly. Your tenancy agreement or welcome pack should say who to contact.
Need a drain engineer in London?
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