Window Cleaning After Winter: Why Spring Is the Perfect Time and How to Do It Right

What Happens to Windows Over Winter

During winter months, windows accumulate a mixture of salt aerosols from gritted roads, condensation, dust from heating systems, and organic dirt. This layer is not just unsightly — salt deposits can damage seals and frame finishes. The average Prague window loses up to 30% of light transmittance over winter.

Why Clean in Spring

• Temperature above 10°C — cleaning products work more efficiently and windows dry streak-free.
• Longer days — more light reveals hidden dirt and streaks.
• End of heating season — dust from radiators no longer settles on glass.
• Psychological effect — clean windows let in up to 30% more light, which demonstrably improves mood and productivity.

5 Most Common Window Cleaning Mistakes

1. Cleaning in Direct Sunlight

Direct sun causes the cleaning product to dry instantly before you can wipe it off. Result: streaks and dried drops. Ideal conditions: overcast sky or the shaded side of the building.

2. Using Newspaper or Paper Towels

An old myth. Newspapers leave ink marks and paper towels fall apart. Professional solution: microfibre cloth and a squeegee.

3. Forgetting Frames and Sills

Clean glass in dirty frames looks worse than before. First wash frames and sills, then glass — otherwise dripping water re-contaminates the glass.

4. Too Much Product

More does not mean better. Excess product creates a sticky film that immediately attracts dust. A few sprays per window is enough.

5. Ignoring Seals

Rubber seals around windows often develop mould after winter. Clean them with a vinegar solution and treat with silicone spray to extend their life.

Professional vs. DIY Window Cleaning

Professional window cleaning offers advantages that home methods simply cannot match:

• Demineralised water — no mineral deposits after drying.
• Telescopic poles — safe exterior cleaning even on higher floors.
• Protective coatings — repel dirt and extend the interval between cleanings.

At BeeClean, we clean a standard apartment (6–8 windows) in 60–90 minutes. Prices from 990 CZK including both sides, frames, and sills. Book your spring window cleaning online.