Yes, washing up liquid (dish soap) is not only suitable but also widely recommended for cleaning outside windows. It is an effective, affordable, and environmentally friendly option that many professional window cleaners use to achieve sparkling, streak-free glass.
Why Washing Up Liquid Works for Outside Windows
Washing up liquid is designed to cut through grease and grime, which makes it excellent for removing the dirt, dust, and oily residues that accumulate on exterior windows. Unlike harsh chemical detergents, washing up liquid is gentle on glass and the environment, and when used properly, it leaves no stubborn residues behind.
Professional window cleaners often rely on a simple mixture of warm water and a small amount of washing up liquid to clean windows effectively. The key is to use just a little soap to avoid excessive foam or streaking.
How to Use Washing Up Liquid for Outside Window Cleaning
- Prepare the Cleaning Solution:
Fill a bucket with warm water and add a few drops or about a tablespoon of washing up liquid. There is no need to buy expensive brands; even inexpensive washing up liquids work well as long as you use them sparingly. - Apply the Solution:
Soak a sponge, soft brush, or cloth in the soapy water and scrub the window surface gently. This helps loosen dirt and grime without scratching the glass. - Rinse Thoroughly:
After scrubbing, rinse the windows with clean water to remove soap residue. This step is important because leftover soap can cause streaks or attract more dirt. - Dry the Windows:
Use a squeegee with smooth, overlapping strokes to remove excess water. Wipe the edges and any drips with a microfiber cloth or lint-free towel for a streak-free finish.
Additional Tips for Best Results
- Avoid Overusing Soap: Using too much washing up liquid can cause foaming and leave a sticky residue that attracts dirt, leading to streaks.
- Clean on Cloudy Days or in Shade: Cleaning windows in direct sunlight can cause the solution to dry too quickly, resulting in marks and streaks.
- Use Soft Water if Possible: Hard water can leave mineral deposits on glass. Using distilled or soft water for rinsing helps prevent this.
- Protect Your Skin: Frequent contact with washing up liquid can dry out your hands, so consider wearing gloves if cleaning many windows.
Alternatives and Enhancements
Some people add white vinegar to their washing up liquid solution to boost cleaning power and reduce streaking, especially for tough grime or mineral deposits. However, opinions vary on the effectiveness of vinegar mixed with dish soap, and some professionals prefer just soapy water with proper technique for the best results.
Using washing up liquid like Fairy Liquid to clean outside windows is a tried-and-true method embraced by both professionals and homeowners. It effectively removes dirt and grease without harsh chemicals, is budget-friendly, and environmentally safer. The secret to success lies in using a small amount of washing up liquid, rinsing thoroughly, and drying properly with the right tools. So, if you’re wondering whether washing up liquid is suitable for your exterior window cleaning needs-the answer is a confident yes.