Condensation on windows is a common issue in many homes, particularly during the colder months. While it may seem like a minor nuisance, persistent condensation can lead to mould growth, damp patches, and even damage to window frames. Understanding what causes condensation and how to prevent it can help keep your home warm, dry, and energy-efficient.
What Causes Condensation on Windows?
Condensation occurs when warm, moist air comes into contact with a cold surface, such as a windowpane. When the air cools down, it can’t hold as much moisture, leading to water droplets forming on the glass. This is especially common in winter when the temperature difference between the inside and outside of your home is greatest.
Not all condensation is bad. External condensation on the outside of your windows is a sign that your glazing is working well by keeping heat inside. However, internal condensation (on the inside of your windows) can indicate poor ventilation or excess moisture in your home. Condensation between double glazing suggests a broken seal, meaning the window unit has lost its insulating properties and may need replacing.
How to Prevent Condensation on Your Windows
1. Improve Ventilation
Poor airflow is one of the biggest causes of condensation. To reduce moisture build-up, you need to improve ventilation, especially in areas like kitchens, bathrooms, and bedrooms. Open windows regularly, even during colder months, to allow fresh air to circulate. Extractor fans in bathrooms and kitchens help remove excess steam from cooking and showering.
2. Reduce Indoor Humidity
Everyday activities release moisture into the air. Drying clothes indoors, cooking without lids on pans, and taking long hot showers all contribute to higher humidity levels. To control this, use a dehumidifier in problem areas, ensure tumble dryers are vented outside, and wipe away condensation from windows to prevent long-term damage.
3. Maintain a Consistent Temperature
Sudden temperature changes inside your home can increase levels of moisture. Keeping your heating on at a low, steady temperature rather than turning it on and off can help prevent windows from becoming too cold.
4. Upgrade to Energy-Efficient Windows
Older, single-glazed windows or damaged double glazing are far more susceptible to condensation. Modern double and triple-glazed windows provide better insulation, reducing the temperature difference between the inside and outside, which in turn minimises condensation.
5. Check Window Seals and Frames
Over time, window seals can deteriorate, allowing cold air to enter and warm air to escape. This can increase condensation and energy loss. Regularly inspect your windows for any gaps or draughts and have any damaged seals replaced.
When Should You Replace Your Windows?
If you notice condensation inside the glass of your double glazing, it’s a sign that the seal has failed and the insulating gas between the panes has escaped. This means your window is no longer effective at keeping heat inside your home. Replacing faulty windows with high-quality, energy-efficient alternatives will help eliminate moisture and improve your home’s overall warmth and comfort.
At Narborough Windows and Conservatories, we offer a wide range of bespoke, thermally efficient windows to suit all styles and budgets. Whether you need new double glazing or advice on maintaining your existing windows, our expert team is here to help.
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If condensation is a persistent issue in your home, upgrading to modern, energy-efficient windows could be the best long-term solution. At Narborough Windows and Conservatories, we provide stylish, durable, and thermally efficient windows designed to keep your home warm and dry.
Get in contact with us today for expert advice and a free quote.