How to Stop Mould from Coming Back
By Ruth MacEachern
Product Manager
Jan 08, 2025
Once it has become established in your home, mould can be a persistent problem in. While cleaning it up is crucial, preventing its return is even more important. Mould thrives in damp, humid environments, so keeping these conditions at bay is the key to mould-free living.
If you want to keep mould away once you’ve removed if from your walls, there are several things you can do.
Control indoor humidity to prevent mould from growing back
To stop mould coming back, you will need to reduce the amount of humidity in your home. When the amount of water vapour in the air of your home is too high, it will form condensation on cold surfaces such as windows and poorly insulated walls. This condensation will eventually lead to the damp patches where mould thrives.
Reducing the humidity in your home stops condensation from giving mould the environment it needs.
Reduce the amount of moisture released into the air
Many of our day-to-day activities release moisture into the air including:
- Drying clothes indoors
- Taking hot showers and baths
- Cooking food in pans on the hob without using a lid
- Opening dishwashers before they have cooled
- Leaving towels on radiators
Each of these sources of moisture in the air can be addressed easily, either through small changes in behaviour like using a pan lid, or reducing the temperature of your shower, or by ensuring that there is sufficient ventilation to the exterior of your home in rooms where moisture is a problem.
Improve the ventilation in your home
All homeowners should ensure that there are suitable extractor fans installed in kitchens and bathrooms to remove excess moisture generated from cooking and bathing. Modern extractor fans such as the EnviroVent Cyclone 8 feature humidity sensors which means that they work automatically to control humidity. If you have extractor fans that have filters, ensure that they are cleaned regularly to maintain good airflow through the device and keep them running efficiently.
Modern whole house ventilation solutions such as Positive Input Ventilation (PIV) are systems that improve air circulation inside your home. PIV systems such as the EnviroVent ATMOS work by drawing filtered air into your home at roof level through a central unit that then distributes the fresh air throughout your property.
This fresh air displaces the stale humid air so that condensation no longer has the chance to form on cold surfaces. PIV systems also improve air circulation to remove cold spots where mould might be able to grow unnoticed and help to make your heating more efficient. Unlike other whole house ventilation systems which are installed as part of the building process or during a major renovation, PIV can be retrofitted into most homes.
Get expert help to stop mould
Mould can be dangerous for your health and grows back quickly after cleaning. Our local ventilation specialists can help. Book a free home survey from EnviroVent cand our expert will visit your property, identify the sources of condensation that are leading to mould and provide you with advice about the best way to deal with the problem. Simply enter your postcode below to get help from a specialist near you.
