Mould on clothes and in wardrobes: why it happens and how to stop it
Clothes go mouldy when they sit in still, damp air against a cold surface. In most homes that means a wardrobe on an outside wall, in a bedroom that's cool at night, in winter. Cleaning the clothes is the easy bit. Stopping it coming back means drying out the air and warming that corner.
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Why the wardrobe
A wardrobe pushed tight to an outside wall shades that bit of wall from the room's heat, so it stays colder than the rest. Moist air drifts in behind and settles. Gov.uk's guidance on damp and mould points to exactly this: condensation often collects low down on walls behind sofas and wardrobes. The back panel of the wardrobe gets damp, then the clothes touching it.
Winter makes it worse. Windows stay shut, washing gets dried indoors, the heating goes off overnight, and bedrooms fill up with moisture from people breathing. Packed rails and drawers don't help because air can't move between the clothes.
Meaco, which makes dehumidifiers, says mould grows once relative humidity reaches 68%. Inside a cold wardrobe it can sit above that for weeks without the rest of the room feeling especially damp.
Signs to look for
- A musty smell when you open the doors, even if you can't see anything.
- White or grey furry spots on leather shoes, belts and bags. These are often the first things to go.
- Small black or green dots on the shoulders of hanging clothes or along folds.
- Black spots on the back panel or on the wall once you pull the wardrobe out.
Cleaning what's affected
- Take everything out and check it in daylight. Do it near an open window or outside, so spores don't spread through the house.
- Brush loose mould off outdoors, then wash on the warmest setting the label allows. Dry completely before putting anything back, outdoors if the weather lets you.
- Leather and suede: wipe gently with a barely damp cloth, let them dry away from a radiator, then condition. Badly marked items are worth taking to a specialist cleaner.
- Wipe the inside of the wardrobe and leave the doors open until it's properly dry.
If there's mould on the wall behind, small patches on a painted surface can be wiped off. Don't paint over it. If it covers a large area or keeps coming back, it needs looking at properly; see black mould removal.
Stopping it coming back
- Move the wardrobe a few centimetres away from the wall, or onto an inside wall if the room allows. Gov.uk's guidance recommends leaving a gap between furniture and outside walls.
- Don't pack the rail. Leave space for air between hangers, and keep the doors ajar now and then.
- Only put away clothes that are completely dry, including after ironing.
- Keep a little heat in the bedroom overnight in cold weather.
- Dry washing outside or in a tumble dryer that vents out, rather than on bedroom radiators.
- Bring the humidity down. A dehumidifier in the bedroom, set to about 55%, does more than anything stuck inside the wardrobe. Our dehumidifier size calculator tells you what size to look for and what it costs per hour.
When it's not just the wardrobe
If the wall behind the wardrobe is damp to the touch even after it's been moved and dried out, or there's a tide mark low down, or the patch spreads after rain, the moisture may be coming through the wall rather than from the air. That's penetrating damp or rising damp, and no amount of airing will fix it. The guide to damp or condensation helps you tell the difference.
If clothes keep going mouldy after you've tried the steps above, ask for a local specialist. We'll pass your enquiry to one independent damp and mould specialist near you, free.
Renting? Mould caused by the building is your landlord's job to fix. Our tenants' guide explains how to report it and keep a record of damaged belongings.
Health
The NHS now points people to the government's guidance on the health risks of damp and mould, which says some people are more at risk, including children, older people and anyone with asthma or another lung condition. If you're worried, speak to a GP or pharmacist.
Sources
Gov.uk, Understanding and addressing the health risks of damp and mould in the home (updated 1 April 2026). Meaco, making the most of your dehumidifier (updated 27 February 2024), for the humidity figures.
Facts, dates and prices on this page were last checked on 2 November 2026.
Common questions
Can mouldy clothes be saved?
Often, yes, if it's caught early and the fabric is washable. Brush the worst off outside, wash on the hottest cycle the care label allows and dry fully, ideally outdoors. Leather, suede and anything dry-clean only are harder; a specialist cleaner is the safer bet.
Why does it only happen in one wardrobe?
Usually because that wardrobe stands against an outside wall, or sits in the coldest room. The wall behind it stays cold and the air trapped behind the wardrobe can't move, so moisture settles there first.
Do moisture absorbers in the wardrobe work?
They take up a little water and can help in a small cupboard. They won't keep up if the room itself is damp, and they don't fix why it's damp.
I rent. Who pays for my ruined clothes?
If the mould comes from a problem with the building that your landlord knew about and didn't fix, you may be able to claim. Keep the damaged items or photos of them, and get advice from Shelter first.
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