Cleaning windows seems like a straightforward task, yet it’s easy to get wrong if you’re not using the right tools and techniques. While many of us have the best intentions when we set out to make our windows sparkle, there are certain products and methods that can do more harm than good. Whether it’s the wrong type of cleaner, a poor choice of cloth, or simply an old wives’ tale gone wrong, knowing what not to use is just as important as knowing the correct approach. This article will guide you through the pitfalls to avoid when cleaning windows, helping you achieve a streak-free shine without damaging your glass or leaving behind a mess.
Household Cleaning Products That Should Not Be Used
One of the most common mistakes people make is reaching for standard household cleaning products, thinking they will work just as well on windows as they do elsewhere. Products like bleach, ammonia-based cleaners, and multi-purpose sprays are often used in an attempt to clean glass, but they can be problematic. Bleach, for instance, is highly corrosive and can damage window frames, seals, and any surrounding materials. It might seem effective at cutting through grime, but it can leave streaks and discolouration on the glass, particularly when used on tinted or treated windows. Ammonia-based cleaners, such as some kitchen or bathroom sprays, can cause similar issues. They are often too harsh for windows, stripping away protective coatings and leaving unsightly streaks. In some cases, they can even react with the glass, especially if it is tinted or treated with a UV protective layer, leading to long-term damage. Similarly, multi-purpose sprays can leave a cloudy film behind, as they are not formulated to evaporate cleanly without residue. For the best results, always use a dedicated glass cleaner that is designed specifically for windows.
Avoid Using Paper Towels and Newspaper
Another common error is using paper towels or old newspapers to clean windows. While this might seem convenient, these materials are not designed for glass cleaning and can leave behind lint, fibres, or ink smudges. Paper towels, in particular, are notorious for creating more problems than they solve. Although they absorb moisture quickly, they often leave tiny fibres behind, resulting in a less-than-perfect finish. This residue can cling to the glass, requiring further effort to remove, and ultimately diminishing the clarity you’re aiming for. Newspapers, once a popular choice for window cleaning, are now considered outdated and ineffective. Modern inks are more likely to smudge than those used in the past, and the paper itself is not as robust as it once was. Using newspapers can result in unsightly streaks and ink transfers, especially on damp glass. Additionally, the rough texture of newspaper can potentially scratch delicate window surfaces, particularly those that are coated or treated. Opt for a microfibre cloth instead; it’s specifically designed to capture dust and dirt without scratching or leaving behind fibres.
Steer Clear of Abrasive Sponges and Scrubbers
It might be tempting to use an abrasive sponge or scrubber when dealing with stubborn spots or dried-on dirt, but this approach can be disastrous for your windows. Abrasive materials can cause scratches, damaging the glass and making it more susceptible to future dirt build-up. Even if the scratches are not immediately visible, over time, these micro-abrasions can accumulate, leaving your windows looking dull and worn. Steel wool, scouring pads, and any other rough scrubbing tools should be avoided at all costs. These items are designed for tough surfaces like pots and pans, not for the delicate nature of glass. Using them can result in irreversible damage, particularly on treated or low-E (low emissivity) glass, which is commonly used in modern homes for its energy efficiency. If you encounter tough grime, it’s better to use a non-abrasive scraper specifically designed for windows or a plastic spatula to gently lift the dirt without scratching the surface.
Say No to Vinegar and Baking Soda Mixtures
Many DIY cleaning solutions suggest using a mixture of vinegar and baking soda to clean windows. While both ingredients are excellent cleaning agents on their own, combining them for window cleaning is not a good idea. When mixed, vinegar and baking soda create a chemical reaction that fizzes and releases carbon dioxide, which doesn’t enhance the cleaning process but instead can leave behind a gritty residue. This residue can be challenging to remove and may result in cloudy, streaked windows rather than the clear, sparkling finish you’re aiming for. Vinegar, on its own, can be effective as a window cleaner, especially when diluted with water. However, it’s essential to rinse thoroughly after use, as vinegar can leave an acidic film on the glass if not wiped away properly. This film can attract dust and dirt more quickly, undoing all your hard work. For best results, stick to a well-formulated commercial glass cleaner that is specifically designed to provide a streak-free finish without the risk of residues.
Avoid Using Hot Water
While it might seem logical to use hot water for cleaning, it’s not always the best choice for windows. Hot water can cause glass to expand and contract, particularly if it is significantly warmer than the ambient temperature. This thermal shock can lead to cracks or weakened glass, especially in older or poorly installed windows. Moreover, if the water evaporates too quickly due to its high temperature, it can leave behind mineral deposits, commonly known as water spots, which are difficult to remove without further scrubbing. Instead, use lukewarm or cool water when cleaning your windows. This approach is gentle on the glass and helps to prevent the formation of spots and streaks. If you need an extra boost to remove stubborn grime, consider adding a small amount of dish soap to the water. This mild solution will cut through dirt without risking damage to the glass or surrounding frames.
Do Not Use Excessive Water
Another often overlooked mistake is using too much water when cleaning windows. While it may seem that more water would help to rinse away dirt, excess water can seep into window frames, sills, and seals, leading to potential water damage and mould growth. This is particularly problematic for wooden window frames, which can swell and warp when exposed to moisture, or for aluminium frames, which can corrode over time. Water that seeps into seals can also compromise the insulation properties of double-glazed windows, leading to fogging between the panes that is difficult and costly to repair. To avoid these issues, use a damp (not soaking) cloth or sponge and ensure that you wring out excess water before cleaning. A good rule of thumb is to mist the window lightly with your chosen cleaner rather than drenching it.
Avoid Cleaning Windows on Sunny Days
It might seem like a great idea to clean your windows on a bright sunny day, thinking that the sunshine will help dry them quickly. However, this is one of the worst times to clean windows, as the sun causes the cleaning solution to dry too fast, leaving behind streaks and smudges. When the glass is hot, the cleaner evaporates almost instantly, making it nearly impossible to wipe it away effectively before it leaves marks. Instead, aim to clean your windows on a cloudy day or during the cooler parts of the day, such as early morning or late afternoon. This will allow the cleaner to work on the dirt without evaporating too quickly, giving you ample time to wipe away the solution and achieve a streak-free finish.
Never Use Harsh Chemicals on Window Frames and Seals
While the focus is often on the glass, it’s important not to neglect the frames and seals when cleaning windows. Harsh chemicals, including bleach, ammonia, and acidic cleaners, can deteriorate the materials around your windows. Wooden frames can be stripped of their finish, aluminium can become corroded, and rubber seals can degrade, leading to gaps that compromise the window’s insulation. To protect these components, use a mild soap and water solution for cleaning window frames and seals, and avoid allowing glass cleaners to drip onto these areas. If your frames are particularly dirty, a soft brush or cloth should be enough to lift dirt without causing damage. Always finish by drying the frames and seals thoroughly to prevent moisture-related issues.
Contact The Experts
Cleaning windows might seem simple, but using the wrong products or techniques can result in streaks, damage, and a finish that is far from satisfactory. By avoiding common mistakes, such as using household cleaners, abrasive materials, or excessive water, you can maintain the clarity and longevity of your windows. Stick to dedicated glass cleaners, microfibre cloths, and gentle cleaning methods to ensure your windows stay spotless and free from damage. Next time you set out to clean your windows, remember these tips and steer clear of the pitfalls that could leave your glass worse off than when you started. Our team of window cleaning experts at Jupiter Window Cleaning are on hand to help make your windows shine like never before so get in touch with us today.