As the UK heads into winter and colder temperatures, households are looking for effective ways to tackle condensation, mould and damp.
Everyday activities such as cooking and drying clothes indoors produce moisture that, when trapped in poorly ventilated spaces, settle on cold surfaces to create condensation and exacerbate mould growth.
And the problems of damp and mould extend far beyond cosmetic issues, impacting the health and safety of residents as well as contaminating clothes and furnishings.
As a result, the simple practice of ‘house burping’ — regularly opening windows for brief periods to ventilate homes — is gaining renewed attention as a way to prevent these problems.
Despite concerns over energy costs and the cold winter months, experts stress that allowing homes to ‘burp’ can significantly reduce moisture build-up, which is key in preventing mould proliferation.
What is ‘house burping’?
House burping is the act of regularly opening windows for a brief amount of time, typically for 10 to 15 minutes daily, to keep moisture levels down.
Like burping a baby, this method releases the stale air and draws in fresh air, but it also reduces the buildup of condensation.
This guidance is especially vital where extractor fans are ineffective or ventilation systems are blocked.
Helen O’Connor, product manager at 247 Blinds, explained to Ideal Home: ‘If you’re not letting your home breathe, you are cultivating an environment for mould to grow.’
Opening several windows at once on either side of your home will create a strong cross-draught, helping to flush out the damp air as well as any unpleasant odours.
However, it’s important not to leave windows open for too long, as this will cause heat loss and make the home less energy efficient, increasing the cost of energy bills.
House burping is also another name for the German practice of Stoßlüften, which translates to ‘shock ventilation’.
Advice for renters
Landlords in the private rental sector are confronting mounting pressure to improve ventilation and address damp issues promptly.
Tenants should document mould presence immediately with photographs and report concerns promptly to landlords or housing providers in order for them to be addressed.
For those in social housing, the introduction of Awaab’s Law in October 2025 means landlords must investigate reports of damp or mould and commence any necessary repairs within a strict time frame, with response times scaled according to risk severity.
More ways to tackle mould
- Installing and regularly operating extractor fans in kitchens and bathrooms helps remove humid air directly at its source. Modern models equipped with humidity sensors can adjust airflow automatically, increasing efficiency.
- Portable dehumidifiers actively reduce indoor moisture, particularly in rooms prone to dampness, maintaining humidity at the recommended level of below 60%.
- Avoid drying clothes inside, as this releases significant moisture. Where possible, use vented tumble dryers or dry clothes outdoors to minimise indoor humidity.
- Use affordable hygrometers to keep track of moisture levels, enabling timely ventilation adjustments.
- Keep your home heated at a consistent, low temperature rather than turning heating on and off. Cold surfaces attract condensation, and maintaining warmth helps prevent this.
- Promptly clean mouldy areas using damp cloths and mild detergent or specialist anti-mould sprays. Vinegar or diluted tea tree oil can serve as eco-friendly anti-mould treatments.
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