How to Prepare Your Windows for Winter in Brussels

Jul 21, 2025By Yves Claes
Yves Claes

Inspect and Clean Your Windows

Winter in Brussels can be quite harsh, and ensuring your windows are in top condition is essential for maintaining a warm and energy-efficient home. Begin by inspecting your windows for any signs of damage, such as cracks or gaps that might allow cold air to seep in. Cleaning your windows thoroughly is also important, as dirt and grime can prevent proper sealing.

window cleaning

Use a mild detergent and water to clean the glass and frames. Pay special attention to the window sills and tracks, as accumulated debris can interfere with the window's operation. Once cleaned, allow the windows to dry completely before moving on to the next step.

Seal Gaps and Cracks

After cleaning, it's time to address any gaps or cracks that could let in the cold. Use a high-quality silicone or latex caulk to seal any visible openings around the window frames. Focus on areas where the frame meets the wall, as these are common spots for air leaks.

If your windows have larger gaps, consider using weatherstripping. This material is easy to apply and provides an extra layer of insulation. For older windows, you might also consider adding a window film to reduce heat loss further.

window insulation

Upgrade to Double-Glazed Windows

If your budget allows, upgrading to double-glazed windows is an excellent investment. These windows consist of two glass panes with a layer of gas or air in between, providing superior insulation compared to single-pane windows. While the initial cost may be higher, the energy savings and increased comfort make it worthwhile.

Double-glazed windows not only help in keeping your home warm but also reduce noise from outside—a great advantage in a bustling city like Brussels. If replacement isn't an option, consider installing storm windows for added protection against the cold.

double glazed windows

Utilize Thermal Curtains

Thermal curtains are another effective way to prepare your windows for winter. These curtains have a special lining that helps retain heat within your home while blocking out cold air. Available in various styles and colors, they can complement your interior décor while enhancing energy efficiency.

For maximum effectiveness, ensure the curtains cover the entire window and hang close to the wall. Remember to open them during sunny days to let natural warmth in and close them at dusk to trap heat inside.

Regular Maintenance for Longevity

Regular maintenance is key to extending the lifespan of your windows. Lubricate hinges and locks annually to ensure smooth operation and prevent damage. Check that all hardware is secure and replace any worn-out parts promptly.

By following these steps, you can ensure that your windows are well-prepared for the harsh Brussels winter, keeping your home cozy while saving on energy costs. Remember, a little effort now can lead to significant benefits throughout the season.