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1 September 2026

Mould and babies: what every parent should know

Quick answer

Babies and young children are more sensitive to mould than adults because their airways and immune systems are still developing. Mould in a nursery can worsen coughs, congestion and wheezing. It's not usually an emergency, but it should be treated promptly and any symptoms discussed with a doctor.

Why babies are more affected

Infants breathe faster than adults and their lungs and immune systems are still developing, so they're more sensitive to airborne irritants — including mould spores. That doesn't mean a small patch is a disaster, but it does mean nursery mould deserves quicker action than you might give a garage.

Signs worth noting

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Persistent cough, a blocked or runny nose, wheezing, or skin irritation that eases when the baby is elsewhere can be linked to indoor mould. These overlap with ordinary colds, so don't panic — but if they persist, mention the home environment to your paediatrician. Always speak to a doctor about medical symptoms — we deal with the mould in the building, not the medical side.

Where nursery mould appears

The usual spots are cold external walls, corners, window reveals, and behind cots and furniture pushed against walls. The cause is almost always condensation — nurseries are often kept warm and closed, which traps moisture.

Making the room safe

Ventilate daily, keep the cot away from cold external walls, manage humidity, and treat any mould promptly and safely — never dry-brush it near where a baby sleeps (see safe removal). For anything more than a small surface patch, or if it keeps returning, get it dealt with properly. mould treatment clears growth and an mould inspection finds the moisture source.

Mould in your child's room? Don't wait — book a €75 inspection or call +357 96 738151.

Frequently asked questions

Is mould in a nursery dangerous for my baby?
Babies are more sensitive to mould than adults, so it can worsen coughs and congestion. A small patch isn't usually an emergency but should be treated promptly, and any symptoms discussed with a doctor.
How do I safely remove mould near my baby?
Never dry-brush it. Ventilate, keep the baby out of the room, treat the area with an appropriate product or have it done professionally, and let it dry fully before the baby returns.
Why does my baby's room keep getting mould?
Nurseries are often kept warm and closed, trapping moisture that condenses on cold walls. Ventilate daily and keep the cot off external walls.
Can mould cause breathing problems in babies?
It can worsen coughs, congestion and wheezing in sensitive infants. Persistent symptoms should be checked by a doctor while the mould is treated.

Not sure how bad yours is?

Book a €75 inspection and know for certain — or call us now.

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