Velux roof windows can make a stylish and functional investment in any home. These windows offer enough natural light, ventilation, and an open-air feel. When winter approaches, most homeowners notice issues like condensation on the glass and unwanted heat loss.
If you don’t take the right precautions, these problems can cause discomfort, increased energy bills, and potential damage to window frames and nearby structures. Fortunately, considering a few simple steps like winter-proofing your Velux windows can keep your home warm, dry, and efficient all season long.
Why Condensation Happens?
Condensation occurs whenever warm, moist indoor air meets a cold surface like the interior glass of a roof window. During winter, outdoor temperatures drop and condensation becomes more common, especially in rooms with high humidity like kitchens, bathrooms, and lofts. However, a small amount of condensation isn’t a major concern. But persistent moisture can cause mould, wood rot, and damage to paintwork or plaster.
Improve Ventilation
An effective way to prevent condensation is to ensure proper ventilation. Velux roof windows have integrated ventilation flaps that allow fresh air to circulate when the window is closed. You can make it a habit to open these flaps daily to release humid air, or crack the window open for a few minutes to encourage airflow. You can consider installing a dehumidifier in high-moisture areas and make a significant difference.
Regular Cleaning and Maintenance

You can keep your Velux windows in good shape by cleaning them regularly. Dirt and grime on the seals or ventilation filters can minimise their efficiency and allow moisture to build up. You can use a soft cloth and mild detergent to wipe down the glass, frame, and hinges. You need to replace the air filter if it’s clogged or worn out. You can check the seals for signs of wear or gaps that could let cold air in or warm air escape.
Add Insulation and Blinds
Velux offers a comprehensive range of thermal blinds and energy-efficient glazing options that help reduce heat loss. Installing blackout or insulated blinds can create an additional barrier against the cold; keep your room warmer and more comfortable. Whether your window is older or has single glazing, you can upgrade to double or triple glazing with low-emissivity (low-e) coatings to boost thermal performance.
Check for Draughts
Over time, high-quality windows like Velux can develop small gaps or misalignments. You need to check around your roof window for any draughts or cold spots. If you notice any, you may need to reseal the unit or have a professional inspect it. You can consider taking help from Yorkshire Roof Windows for expert repair and servicing for Velux windows. Their team ensure that these windows remain air-tight and energy-efficient throughout the winter months.

Schedule a Professional Service
Preventive maintenance can help with long-term performance. A professional service includes inspecting the window’s operation, replacing worn parts, lubricating hinges, and ensuring that seals are intact. Regular servicing improves energy efficiency and extends the lifespan of your roof window.
Final Consideration
Winter-proofing your Velux roof windows doesn’t need a major investment; rather, just a proactive approach and regular care. You can consider improving ventilation, cleaning regularly, using thermal blinds, and addressing any draughts or glazing issues. So, you can enjoy the benefits of your Velux windows without the downsides of condensation or heat loss. If you need professional help, Yorkshire Roof Windows can ensure that your home stays warm and efficient all winter long.