Is It the Tenant’s Responsibility to Clean Mould? UK Rules

Yes, it’s usually the tenant’s responsibility to clean small patches of surface mould and to report damp, but landlords are responsible for fixing the causes, such as leaks, rising or penetrating damp, faulty extractor fans and poor ventilation or insulation. UK government health guidance is clear that damp and mould shouldn’t simply be blamed on tenants’ “lifestyle”. Whose job it is to pay depends on the cause, the condition at check-in, and whether the problem was reported.

Who is responsible for cleaning mould in a rental property?

It comes down to cause. Three common types of damp lead to mould:

Type of damp	Typical signs	Usually whose responsibility
Rising damp	Tide marks and damage low on ground-floor walls	Landlord
Penetrating damp (leaks, roof, gutters, pipes)	Patches that grow after rain, or near pipes	Landlord
Condensation	Black spots on window frames, sealant, ceilings and the corners of outside walls	Shared: landlord for adequate heating, ventilation and insulation; tenant for reasonable ventilation and cleaning off surface mould

Condensation is where most disputes happen. Cooking, showering, breathing and drying clothes all produce moisture; that’s normal life. The UK government’s damp and mould health guidance for landlords states that it is “totally unreasonable” to blame damp and mould on lifestyle choices, and points to building deficiencies, inadequate ventilation, poor heating and poor energy efficiency as the main causes. A home should be able to cope with ordinary daily living.

That doesn’t mean tenants have no part to play. If working extractor fans are switched off, trickle vents taped over and windows never opened, and mould is left to spread, a landlord may argue the tenant contributed.

What are the landlord’s legal duties on damp and mould?

England

Landlords must keep the structure, exterior, and installations for water, heating and sanitation in repair (section 11 of the Landlord and Tenant Act 1985). The Homes (Fitness for Human Habitation) Act 2018 also requires rented homes to be fit to live in, and serious damp and mould can make a home unfit. Councils can act using the Housing Health and Safety Rating System, where damp and mould is a listed hazard.

Awaab’s Law, which sets legal deadlines for investigating and fixing damp and mould, has applied to social housing since 27 October 2025. The Renters’ Rights Act 2025 allows similar requirements, and a Decent Homes Standard, to be applied to private rentals, but as of September 2026 these hadn’t yet come into force for private tenants.

Wales

Under the Renting Homes (Wales) Act 2016, landlords must keep the home in repair and fit for human habitation. Damp and mould growth is one of the matters considered when deciding fitness. Tenants, called contract-holders, must take proper care of the home. See the Welsh Government’s fitness for human habitation guidance for tenants.

Scotland

Private landlords must meet the Repairing Standard, which requires homes to be substantially free from damp and mould. From 6 October 2026, Scotland’s version of Awaab’s Law applies to both social and private landlords: they must investigate damp and mould within 10 working days of becoming aware of it, give the tenant a written summary within 3 working days of the investigation, and, where substantial damp or mould is found, start repairs within 5 working days. Private landlords must then finish the work as soon as reasonably practicable. The duty doesn’t apply where the problem results from the tenant’s own failure to meet their obligations. See the Scottish Government’s Awaab’s Law guidance.

Northern Ireland

Rented homes must meet the fitness standard, which rules out dampness that could affect occupiers’ health. Landlords are responsible for damp from structural problems, and tenants must take care of the property and keep it in good order.

What is the tenant’s responsibility?

• Report it promptly and in writing, with dated photos. Failing to report a problem can make you partly liable for any extra damage.
• Ventilate. Use extractor fans and keep trickle vents open. Open a window during and after showers and cooking.
• Keep moisture down where you can: put lids on pans, dry laundry in a ventilated room or outdoors if possible, and wipe condensation off windows in the morning.
• Leave a gap between furniture and outside walls so air can circulate.
• Clean off small areas of surface mould on tiles, sealant and window frames before they spread.

How should you clean mould safely?

Small patches on non-porous surfaces, such as tiles, sealant, glass and uPVC frames, can usually be cleaned by the tenant. The government guidance recommends mould and mildew products in preference to bleach, and wearing gloves, a mask and goggles. Larger areas, and mould that keeps returning, need the cause fixing and may need a professional.

1. Open windows and keep children and pets out of the room.
2. Wear rubber gloves, goggles and a mask.
3. Apply a mould and mildew remover as the label directs. Never mix it with other products.
4. Wipe with a damp cloth, then dry the area thoroughly.
5. Bag and bin the cloths.
6. If spots remain in sealant, the sealant may need replacing, which is usually a landlord repair after normal wear.

If anyone in the home has asthma, a lung condition or a weakened immune system, or is pregnant, avoid cleaning mould yourself where possible. The guidance lists these groups as more vulnerable.

Can mould affect my deposit?

At check-out, the inventory clerk compares the property with the check-in report. A landlord may deduct the reasonable cost of cleaning surface mould you could have removed, such as black spots on the shower sealant. They shouldn’t charge you for mould caused by a leak, a building defect or a fault you reported and they didn’t fix. Your written reports are your evidence, so keep them.

If you disagree with a deduction, use your deposit scheme’s free dispute service. Our guides to getting your full deposit back and which damage tenants are responsible for go into more detail.

What is a tenant’s responsibility for cleanliness during a tenancy?

Most tenancy agreements require you to keep the home in a reasonably clean condition and to take proper care of it. That’s what the law calls using the property in a “tenant-like manner”. In practice it means:

• Regular cleaning of kitchens, bathrooms and floors, so grease, limescale and mould don’t build up.
• Taking out rubbish and not letting it pile up inside or in the garden.
• Using fans and ventilation, and not blocking vents or drains.
• Reporting repairs, leaks and damp promptly.
• Allowing access for inspections and repairs with proper notice.

Landlords can’t set a standard higher than the one you started with, and they can’t charge you for normal wear and tear. If a landlord says the home is too dirty mid-tenancy, ask them to explain in writing what needs doing.

Who is responsible for end of tenancy cleaning?

The tenant. When you move out, you must return the property as clean as it was at check-in, as recorded in the inventory, allowing for fair wear and tear. That includes cleaning off any surface mould that built up during the tenancy. If the property was already dirty when you moved in, you only need to return it to that standard. Anything beyond it is the landlord’s choice and cost.

You don’t have to use a professional. In England, the Tenant Fees Act 2019 stops a landlord requiring you to pay for one as a condition of the tenancy, but they can deduct the reasonable cost of cleaning from your deposit if you fall short. Our end of tenancy cleaning checklist covers what an inventory clerk looks for, and our guide to what happens if you don’t clean when you move out explains the risks.

Mould situation at check-out	Likely outcome
Black spots on shower sealant you could have cleaned	Reasonable cleaning cost may be deducted
Mould from a leak you reported in writing	Landlord’s responsibility
Condensation mould with no working extractor fan	Mainly landlord’s responsibility
Mould behind furniture pushed against a cold outside wall	Could be shared; depends on the evidence
Sealant stained through after years of use	Usually fair wear and tear

Frequently asked questions