Winter is cosy, warm, and…the perfect season for mould to sneak in. As temperatures drop and homes stay closed to save energy, humidity builds, condensation forms, and mould starts plotting its next attack.
Don’t worry, this seasonal guide will help you stay one step ahead by talking about the ways to prevent mould growth in your home.
Keep Heating Consistent
Cold spots are mould’s playground, it thrives where it’s damp and chilly. Heat just one room and leave the others freezing, and you’re basically inviting it in for tea. Keep your home evenly warm, and suddenly, mould doesn’t stand a chance.
Winter Tips
-
Keep the heat consistent.
Heat your whole home evenly, we suggest 18 degrees in the bedrooms and 21 degrees in the living room. By heating your home evenly, condensation struggles to form, and when this happens, mould cannot grow, which is a win-win for you and your home.
-
Ditch the heat blasts.
Putting the radiator on high heat for 60 minutes, then switching it off, causes the air in a property as the air will cool quickly and encourages condensation to form. Keeping the heat low and steady is much more effective and efficient.
-
Don’t lock away the cold rooms.
Closing doors and turning off the heat in unused rooms is like giving mould an all-you-can-grow buffet. Warm air holds more moisture than cold air, so when rooms are chilly, that extra humidity condenses on walls and windows. Keep doors open, radiators on, or both, so warmth circulates evenly. Even small adjustments make your walls dry and uninviting to mould.
Ventilation is Vital
Trapped humidity from showers, cooking, and even breathing settles on cold surfaces, creating the perfect breeding ground for condensation and mould. Proper ventilation stops everyday life from quietly feeding mould behind the scenes. Fresh air isn’t just a luxury; it’s your property’s first line of defence against mould growth.
Winter Tips
-
Open Windows Briefly but Regularly
Even when it’s chilly, a quick burst of fresh air can be your home’s best defence against mould. Condensation loves to settle on cold walls and ceilings, giving mould the perfect home. By cracking open windows for 5–10 minutes a few times a day, you let moisture escape before it becomes a problem.
-
Keep Trickle Vents Open and Unblocked
Trickle vents might be small, but they punch well above their weight. These little slots in your windows provide constant, passive ventilation, letting humid air escape without making your home feel like an icebox. Keeping them clear and open stops moisture from building up on walls and windows.
-
Keep Extractor Fans Working
Extractor fans are your best friends when it comes to keeping kitchens and bathrooms dry. They help whisk away steam and moisture before it has a chance to settle on walls or windows. Make sure they’re switched on, clean, and working properly to keep condensation and mould away.
Moisture Management | 5 Simple Tips
Small daily habits can make a big difference in winter.
|
Tip |
Why it matters |
|
Wipe down condensation on windows and sills |
Stops moisture from hanging around and turning into mould. |
|
Avoid drying clothes indoors without ventilation |
Wet clothes + closed rooms = a recipe for mould. |
|
Keep furniture slightly away from walls |
Airflow matters! Give your walls some breathing room. |
|
Open trickle vents or a small window regularly |
Even a tiny gap keeps the air moving and moisture out. |
|
Use extractor fans when cooking or showering |
Stop steam from settling, let the fan do its job. |
Pro Tip: Stick to these daily and your home stays cosy, dry, and mould-free, even in the chilliest months.
Summary
Winter may be cosy, but it’s also mould’s favourite season, unless you put a stop to it. Keep your home evenly heated so cold spots don’t become mould hangouts and let fresh air in whenever you can, crack a window, clear those trickle vents, and run your extractor fans to shoo away moisture. Simple daily habits like wiping down condensation, avoiding drying clothes indoors without ventilation, and giving walls a little breathing room go a long way. Follow these tips, and your home will stay warm, dry, and mould-free all winter.
Stay warm. Stay dry. Stop mould early.
Arm your home with Mouldfix as part of your winter defence plan, keeping walls, windows, and surfaces protected when mould attempts to strike.