Windows serve as the eyes of a building, offering views to the outside world and inviting natural light in. However, despite best efforts to keep them crystal clear, issues can arise. In this guide, we’ll be troubleshooting common window cleaning problems and providing solutions to them.

1. Hard water stains

Caused by mineral deposits in both rain and tap water, hard water stains can create unsightly blemishes on windows. If you don’t have professional equipment with access to a pure water feed, you can combat these stubborn stains by concocting a solution of equal parts white vinegar and water. Apply the mixture with a sponge, allowing it to sit for a few minutes before rubbing away the stains. 

2. Paint splatters 

Have you been doing some decorating and are now stuck with a Jackson Pollock-like effect on your windows and doors? You can buy a special razor tool to scrape paint off the glass — this must be done carefully, at an angle, to prevent permanent scratches. Alternatively, use a mixture of warm water and mild dish soap with a soft cloth. You can moisten and lift the paint, gradually rubbing it away until the glass is restored. However be warned, this can be a time-consuming exercise. 

3. Streaks

Streaks can linger on windows even after a thorough cleaning, diminishing the overall appearance. The best way to prevent these is to clean windows using a waterfed pole. But if you’re doing it yourself, opt for a microfibre cloth, apply cleaning solutions sparingly to avoid leaving excess residue and ensure your squeegee is in good condition, as worn rubber can contribute to streaking.

4. Window sill mould

This can pose health risks when it builds up inside, so it’s important to banish mould. Create a mixture of equal parts water and white vinegar, or use a specialised mould cleaner. Scrub the affected area with a soft brush or toothbrush without causing damage to the window. To prevent further mould growth, ensure proper ventilation and promptly fix any leaks.

Remember, safety is paramount when attempting to address these issues, especially when working at heights. If in doubt, or when dealing with complex issues, seeking professional assistance is a wise choice. Or if you lack the time, tools and effort required (or are worried about damaging your windows), hire us to do the job for you. We’re well used to dealing with common window cleaning problems. And with a combination of high-quality kit and skill, we get glass squeaky clean in a matter of minutes.