Is condensation the landlord’s responsibility?

Often, yes. Persistent condensation usually comes from inadequate ventilation, heating or insulation, which are the landlord’s to deal with. In England, a home where condensation cannot be controlled with reasonable use can be unfit for human habitation. You are expected to use the ventilation and heating provided.

My landlord says the mould is caused by my lifestyle. Is that allowed?

Government guidance says it is “totally unreasonable to blame damp and mould in the home on ‘lifestyle choices’”. Record what you have done to ventilate and heat the home, and ask the landlord to inspect for the cause.

Do I have to stop drying clothes indoors?

You are expected to use the home reasonably, for example by opening a window or using a fan while laundry dries where you can. But a home should cope with normal living, and the guidance lists drying laundry among the everyday tasks that will always produce moisture.

Is a dehumidifier the answer?

It can help, but it does not deal with the cause. If a home needs a dehumidifier running constantly to stay free of mould, that suggests a problem with ventilation, heating or insulation that the landlord should look at.

In writing to your landlord first, then through its complaints process. See how to report your landlord for mould.

Is condensation mould your landlord’s responsibility?

Written by The RemedyBridge editorial team · Updated 3 October 2026 · How we write

Quick answer

Condensation mould is often your landlord’s responsibility, because persistent condensation usually comes from the building rather than from normal daily life. Government guidance is blunt: “it is totally unreasonable to blame damp and mould in the home on ‘lifestyle choices’”. In England, condensation that the home’s ventilation, heating or insulation cannot cope with can make it unfit for human habitation under section 9A of the Landlord and Tenant Act 1985, even if nothing has broken. You still have to use the home reasonably, for example by using the ventilation provided.

Key points

Everyday living produces moisture. A home that is adequately ventilated, heated and insulated should cope with it without persistent mould.
Section 11 repair alone may not cover condensation caused by a poor design: that was the point of Quick v Taff-Ely. But broken extractor fans, failed seals and leaks are repairs.
Fitness for human habitation is wider: “freedom from damp” and ventilation are among the matters that decide whether an English home is fit. See fitness for human habitation.
Councils assess damp and mould growth as a hazard under the HHSRS, whatever its cause.
Social landlords in England have fixed timescales for damp and mould hazards under Awaab’s Law.

What the government guidance says

The guidance for rented housing providers, published by the Ministry of Housing, Communities and Local Government, the Department of Health and Social Care and the UK Health Security Agency, says:

“It is unavoidable that everyday tasks, such as cooking, bathing, washing and drying laundry will contribute to the production of indoor moisture. With this in mind, the fundamental cause of damp and mould will be due to building deficiencies, inadequate ventilation, inadequate heating and/or poor energy efficiency, not tenants’ normal domestic activities.”

Guidance is not itself the law, but it is what landlords are expected to follow, and it is hard for a landlord to rely on “lifestyle” in the face of it.

Three legal routes, and how condensation fits each

Repair (section 11). The landlord must keep the structure, exterior and installations in repair. Condensation caused purely by the original design is not, in itself, disrepair. But condensation made worse by something that has broken, such as a failed extractor fan, perished window seals or damaged insulation, points back to a repair.
Fitness for human habitation (section 9A, England). The home must be fit when the tenancy starts and stay fit. Freedom from damp and ventilation are among the matters in section 10, so a home where condensation cannot be controlled with reasonable use can be unfit even though nothing has deteriorated.
Hazards (HHSRS). Damp and mould growth is one of the hazards councils assess. For private and housing association tenants in England, environmental health can inspect and require the landlord to act.

In Wales, the Renting Homes (Wales) Act 2016 includes damp and mould growth among the 29 matters that decide whether a home is fit. See housing disrepair in Wales.

What “reasonable use” means for you

Tenants are expected to use a home reasonably. In practice that means using the extractor fans and trickle vents provided, opening windows when cooking or after a shower where you can, and keeping the home heated as far as you reasonably can. It does not mean living without cooking, washing or drying clothes.

The most useful thing you can do is put it on record. Note what you have done, such as fans used, windows opened and heating on, and when. If mould keeps coming back despite that, the explanation has to lie with the building.

Signs it is not just condensation

Damp patches that stay wet in dry weather, or spread from a ceiling or an outside wall. That suggests a leak or penetrating damp.
A tide mark low on the walls. That suggests rising damp.
Mould concentrated on one cold wall, corner or window reveal, which suggests a cold bridge or missing insulation.
An extractor fan that does not work, or rooms with no ventilation at all.

The damp and mould page explains how to tell the types of damp apart.

What to do next

Report the mould to your landlord in writing, saying what you have done to ventilate and heat the home. See how to report your landlord for mould.
Ask the landlord to inspect and find the cause, rather than just treat the surface.
Keep a simple log of ventilation and heating, with dated photos of the mould.
If you are told it is your lifestyle and the problem continues, make a formal complaint and refer to the government guidance.
Private and housing association tenants in England can ask the council’s environmental health team to inspect.

Evidence to keep

Dated photos of the mould, taken over weeks so the pattern shows.
A log of what you have done to ventilate and heat the home.
Photos of broken fans, failed seals, missing vents or cold spots.
Every report, complaint and reply.

Important limitations

This is general information about the law in England and Wales, not advice about your home.
Whether a particular home is unfit, or in disrepair, depends on the facts and may need an inspection.

You may not need us — free routes first

You can often resolve repairs for free. Depending on your situation you may be able to:

report repairs to your landlord in writing and keep a dated copy;
use your landlord’s formal complaints process;
take dated photos and keep a record of what you reported and when;
give your landlord a reasonable chance to put things right.

See all free help options

Frequently asked questions

Is condensation the landlord’s responsibility?: Often, yes. Persistent condensation usually comes from inadequate ventilation, heating or insulation, which are the landlord’s to deal with. In England, a home where condensation cannot be controlled with reasonable use can be unfit for human habitation. You are expected to use the ventilation and heating provided.
My landlord says the mould is caused by my lifestyle. Is that allowed?: Government guidance says it is “totally unreasonable to blame damp and mould in the home on ‘lifestyle choices’”. Record what you have done to ventilate and heat the home, and ask the landlord to inspect for the cause.
Do I have to stop drying clothes indoors?: You are expected to use the home reasonably, for example by opening a window or using a fan while laundry dries where you can. But a home should cope with normal living, and the guidance lists drying laundry among the everyday tasks that will always produce moisture.
Is a dehumidifier the answer?: It can help, but it does not deal with the cause. If a home needs a dehumidifier running constantly to stay free of mould, that suggests a problem with ventilation, heating or insulation that the landlord should look at.
How do I report it?: In writing to your landlord first, then through its complaints process. See how to report your landlord for mould.

Sources

RemedyBridge provides a free initial check for housing disrepair problems in England & Wales. The result is a guide only and never tells you that you definitely have a claim. Checking your situation is free.