Mould in a built in wardrobe is prevented naturally by moving air through the space, keeping the back wall warmer than the dew point, and reducing the moisture that gets in with your clothes. In practice that means drilling or cutting ventilation openings, pulling the wardrobe contents away from cold external walls, leaving doors open for part of each day, and never putting damp garments away. Natural moisture absorbers such as bicarbonate of soda, rock salt and charcoal help, but they treat the symptom. Airflow and warmth address the cause.
Built in wardrobes are unusually prone to mould because they combine three conditions mould needs: still air, a cold surface, and organic material to feed on. A freestanding wardrobe sits away from the wall with air behind it. A built in unit is often sealed against a solid external wall, which in most UK housing is the coldest surface in the room.
Warm air in a heated bedroom carries moisture. When that air reaches a cold surface, it can no longer hold the moisture and condensation forms. Inside a closed wardrobe against a north facing or exposed external wall, that surface is the back panel or the wall behind it, and there is no air movement to carry the moisture away.
Clothing makes it worse in two ways. Natural fibres absorb and hold moisture, and packed clothing blocks what little air movement there might be. Add cotton, wool and cardboard boxes as a food source and mould has everything it needs.
This is why mould in a wardrobe almost always appears on the back wall, in corners, and on items pushed against the back. Recognising the pattern tells you where to intervene.
The most effective single change is giving air a way in and out. A sealed box will never dry.
Drill a row of holes near the top and another near the bottom of the wardrobe, either through the doors, the base kick panel, or the side into the room. Warm air enters low, picks up moisture, and leaves high, which creates slow continuous movement without a draught. Round vent covers or slotted vents finish the holes neatly and stop them looking like a repair.
If drilling is not an option, louvred doors achieve the same thing. So does simply removing the sealant or filler that closes the gap between the wardrobe and the ceiling, if there is one.
Behind the unit matters too. If the wardrobe back sits flush against the external wall, fitting battens to hold it fifteen to twenty millimetres off the plaster creates an air gap that lets the wall breathe and keeps the back panel warmer. This is the single most useful structural change in a wardrobe built against a solid external wall.
Wardrobe ventilation only works if the bedroom air itself is not saturated. UK bedrooms produce a considerable amount of moisture overnight from breathing alone, and in a well sealed modern home that moisture has nowhere to go.
Open the bedroom window for ten to fifteen minutes each morning, even in winter. Brief and wide is better than a window left slightly ajar all day, because it exchanges the air without cooling the walls. Use trickle vents if the windows have them, and keep them open.
Leave the wardrobe doors open for part of the day. An hour with the doors open while the bedroom window is vented will do more than any absorber. It is free and it takes no effort beyond remembering.
Keep the bedroom door open when the room is not in use so air circulates through the house rather than stagnating. And close the bathroom door while showering, so that moisture is extracted at source rather than drifting into bedrooms.
Ventilation removes moisture. Warmth stops it condensing in the first place.
Heating the bedroom gently and consistently is far more effective than heating it hard for short bursts. A room that swings between warm and cold produces condensation on every cold cycle. A steady, modest background temperature keeps wall surfaces above the dew point.
Do not block the radiator with the wardrobe. It is a common layout decision in a narrow room and it prevents warm air reaching the wall behind, which is exactly where you need it.
If the wall behind the wardrobe is a solid external wall in an older property, insulated plasterboard or a thin insulating lining behind the unit raises the surface temperature considerably. This is a bigger job but it deals with the root cause in the hardest cases.
Where the problem is severe and structural, it is sometimes more sensible to move away from a sealed built in unit against the cold wall. A freestanding piece stands clear of the wall with air behind it, which removes the condition entirely. Our range of modern wardrobes UK sale covers configurations that fit most bedroom walls while keeping that all important air gap.
None of these replace ventilation, but they reduce humidity within the enclosed space and are worth using alongside it.
Bicarbonate of soda in an open bowl or a breathable fabric bag absorbs moisture steadily. Replace it every few weeks, or when it clumps and hardens.
Rock salt works on the same principle and holds more moisture by volume. Use a container with drainage over a second bowl, since it releases the collected water as brine.
Activated charcoal absorbs both moisture and odour, which makes it useful in a wardrobe that already smells musty. It can be refreshed by leaving it in sunlight for a few hours.
Dried rice in a fabric pouch is the cheapest option and works reasonably in a small enclosed space, though it saturates faster than the others.
Place absorbers near the back and at the base of the wardrobe, where cold air settles and moisture concentrates. One small container in the middle of a large wardrobe does very little.
A surprising amount of wardrobe moisture arrives with the clothes.
Never put anything away damp. Line dried washing that feels dry can still hold moisture in seams and waistbands, so give it an extra hour on the airer. Ironed clothes carry steam, so let them cool and air before hanging. Coats worn in the rain should dry fully in an open space, not behind a closed door.
Do not overfill. Clothes need air between them, and a rail packed tight is effectively a solid block that stops all circulation. A useful test is whether you can slide a hand between garments easily.
Avoid plastic garment covers for long term storage. They trap moisture against fabric and create a small humid pocket. Breathable cotton covers protect from dust while letting the garment air.
Lift things off the wardrobe floor. Items resting directly on the base, particularly cardboard boxes, sit in the coldest and dampest zone. A slatted riser or a low shelf improves this considerably. Bulky bedding is the worst offender, and it stores far better elsewhere: a modern blanket box UK sale piece at the foot of the bed keeps duvets and off season coats out of the wardrobe base entirely.
Cedar blocks and cedar hangers absorb a small amount of moisture and deter moths, and can be refreshed by sanding lightly when the scent fades. Dried lavender does something similar and smells pleasant, though its moisture effect is minimal.
Neither is a mould treatment. Treat them as useful extras in an already ventilated wardrobe rather than a solution on their own.
If mould has already appeared, remove it before improving ventilation, otherwise you are circulating spores.
Empty the wardrobe completely. Wash affected surfaces with a solution of white vinegar, or a mild detergent, using a cloth rather than a brush so you are not flicking spores into the air. Vinegar is effective on hard surfaces and leaves no residue once dry. Let everything dry completely, ideally with a window open and the doors off if they come off easily.
Wash affected clothing at the highest temperature the fabric allows and dry it thoroughly in fresh air. Anything with mould embedded into natural fibre may not recover fully.
Do not repaint or reline the interior until it is genuinely dry. Sealing damp in makes the next outbreak worse.
Then make the changes above. Mould that is cleaned but not addressed structurally returns within a season. Ventilation, warmth and drier contents are what stop it coming back. Moving folded items out of a damp prone unit is easier with dedicated modern clothes storage UK sale pieces that sit away from the cold wall. For anyone reconsidering the bedroom layout as part of this, our full range at Furniture in Fashion includes free delivery to most UK mainland postcodes.
Because a built in wardrobe combines still air, a cold external wall behind it, and organic material in the form of clothing. A freestanding wardrobe has air behind it and rarely develops the same problem.
It absorbs moisture and helps, but it treats the symptom rather than the cause. Without ventilation and a warmer back wall, the moisture returns faster than any absorber can remove it.
Yes, for part of each day. An hour with the doors open, ideally while the bedroom window is briefly opened, does more to dry the space than any product. It costs nothing and is the easiest habit to adopt.
Drill a row of holes low and high and fit neat vent covers, or vent through the base kick panel where they are barely visible. Louvred doors and a small gap at the top of the unit achieve the same airflow.
Yes. White vinegar works well on hard surfaces and leaves no residue. Wipe with a cloth rather than brushing, so spores are not spread into the air, and let the interior dry fully before putting anything back.
Making your own wardrobe can take three quite different forms, and choosing the right one…
Sliding door wardrobe prices in the UK fall into three brackets: ready made freestanding units…
Wardrobe smells come from three things acting together: moisture, still air and worn clothing in…
Bar stools can often be shortened, but only some types, and telling them apart is…
Cut down your wardrobe by emptying it completely, sorting by category rather than by shelf,…
Building a built in wardrobe follows a fixed order, and the two stages that decide…
This website uses cookies.