Article Highlights

• Why mould becomes more common heading into winter

• Health risks of mould in the home

• Signs mould may be developing indoors

• Simple ways to reduce moisture and prevent mould

• How in-home support can help maintain a safe living environment

As temperatures drop and homes are sealed up to retain heat, many households become more vulnerable to mould growth.

Heading into winter, cooler conditions and increased indoor moisture can create the perfect environment for mould to develop on walls, ceilings, windows and other damp areas of the home.

Did you know?

Mould grows quickly in damp environments, which is why the cooler months often increase the risk of mould growth inside homes.

While mould can sometimes appear harmless, it can lead to health concerns if it is not addressed early.

Why Mould Becomes More Common in Winter

Mould thrives in warm, damp environments. During the cooler months, homes are often kept closed to maintain warmth, which can reduce airflow and trap moisture indoors.

Common factors that contribute to mould growth in the home include:

  • Higher indoor humidity
  • Poor ventilation in bathrooms or kitchens
  • Condensation on windows and walls
  • Wet clothing drying indoors
  • Leaks or unnoticed water damage

How can we help?

Regular cleaning and good household maintenance can reduce these risks. Services such as help around the home can assist with regularly cleaning surfaces, improving airflow, and maintaining a healthy, hygienic home environment.

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Health Risks Associated With Mould

Mould exposure can affect people differently. Some may only notice mild irritation, while others may experience more significant health effects.

Older adults, people living with asthma or respiratory conditions, and those with weakened immune systems may be more sensitive to mould exposure.

If mould spreads widely or continues returning, professional advice may be required to remove it safely.

Signs Mould May Be Present in Your Home

Mould is not always immediately visible and may grow in hidden areas.

Common warning signs of mould being present at home include:

  • A musty or damp smell
  • Dark spots on walls, ceilings or grout
  • Peeling paint or bubbling surfaces
  • Condensation on windows
  • Persistent dampness in certain rooms

Maintaining a safe and comfortable home environment is an important part of well-being. Support services such as personal care can help people continue living independently while managing daily health and hygiene needs.

You can also learn more about the benefits of support services in our article on personal care at home support.

Simple Ways to Prevent Mould in Winter

Preventing mould often comes down to controlling moisture and improving ventilation.

Small steps can significantly reduce the likelihood of mould developing indoors.

Support for a Safe and Healthy Home

Maintaining a home can become more challenging when health concerns, mobility limitations or recovery from illness make everyday tasks more difficult.

For families and carers supporting loved ones at home, services such as respite for carers can provide valuable breaks while ensuring the person receiving care remains supported.

Support workers can assist with light household tasks, monitoring damp areas and helping maintain a clean and healthy living environment. This support allows people to continue living safely and comfortably in their own homes.

Keeping Your Home Safe and Healthy

If you or a loved one need help maintaining a safe and comfortable home environment, the Just Better Care team can assist with personalised in-home support.

Get Started with Just Better Care

Frequently Asked Questions About Mould in the Home

Why does mould grow more often in homes during winter?

Mould grows more frequently in winter because homes are closed up to keep warmth inside. Reduced airflow, condensation on windows and damp clothing drying indoors can increase indoor moisture levels and create ideal conditions for mould.

Is mould in the house dangerous for your health?

Mould exposure can cause health problems, particularly for older adults or people with asthma, allergies or respiratory conditions. Symptoms may include coughing, sneezing, headaches, skin irritation or breathing difficulties.

How can I tell if mould is growing in my home?

Signs of mould include a musty smell, dark spots on walls or ceilings, peeling paint, condensation on windows and persistent dampness in certain rooms such as bathrooms or kitchens.

What causes mould to grow inside a house?

Mould develops when moisture builds up indoors. This can be caused by poor ventilation, leaks, condensation, drying clothing indoors or water damage.

How can I prevent mould from forming in winter?

Improving airflow, opening windows when possible, using exhaust fans, wiping condensation from windows and repairing leaks quickly can significantly reduce mould growth.

Can mould return after it has been cleaned?

Yes. If the underlying moisture problem is not resolved, mould can return. Managing humidity and improving ventilation are important steps to prevent recurrence.

Who is most at risk from mould exposure?

Older adults, people with asthma, allergies, respiratory illnesses or weakened immune systems are more vulnerable to the effects of mould exposure.

When should mould be professionally removed?

If mould spreads across a large area, repeatedly returns or is linked to water damage, professional removal may be necessary to safely treat the problem and prevent further spread.