Have you ever spent hours washing your windows, only to notice streaks everywhere? This has to do with the evaporation rate—if your cleaning solution evaporates before you have time to wipe it off, it will leave a mark.
A microfiber cloth is ideal but a gentle and clean paper towel can work as well. Rub from multiple directions to help avoid streaking. If you find that you still have streaks after you've cleaned your window, simply rinse with clear water to help remove any of the remaining cleaning solution.
Some commercial glass cleaners contain wax, which can leave a streaky residue. Washing windows on a sunny day or using hot water can also cause streaks, because the cleaner dries too quickly on the windows. Many pros recommend washing windows with plain soap and water and a squeegee.
Provided they are clean, microfiber cloths are the best way to avoid thin films left over after you wipe down the surface of your glass or mirror. Some people recommend using rags, or an old tee-shirt, but those materials were not designed for cleaning.
Make sure to use a commercial glass cleaner or try a combination of distilled water and white vinegar. Once you have the product ready, use a microfiber cloth, t-shirt, or newspaper instead of paper towels. Spray the product on your cloth instead of on the mirror in order to avoid drips that you'll need to wipe up.
If you have smeared windows when you're finished cleaning, you've left cleaning solution, soap, or minerals behind. Whether you have white residue on windows or another blemish, the solution is the same. Clean faster, use cleaner water, and wipe away all your solution, so nothing is left behind.
Wipe off any excess cleaner to prevent streaks
You can use a squeegee for a streak free finish. Also work in an S-shape. Periodically wipe the squeegee blade on a clean rag to avoid smearing dirt around. Remove remaining water with a damp chamois or microfibre cloth and dry the windowsill.
Best Overall: Stoner Invisible Glass Glass Cleaner
Invisible Glass Glass Cleaner quickly and easily removes fingerprints, smudges, grease and grime without leaving behind residue for a streak-free shine without soaps, scents or dyes. In fact, Invisible Glass guarantees a streak-free finish or your money back.
It contains vinegar and isopropyl alcohol, which both cut through grease and kill bacteria. Simply mix one cup of alcohol and water and add a tablespoon of vinegar. Add the mixture to a spray bottle, and you're good to go! This cleaner works on any glass surface, from your windows to the lenses in your glasses.
You'll have plenty of time to catch the drips. For cleaning smaller surfaces, Windex® Original Wipes achieve a streak-free shine in a spray-free format.
For best results, avoid using Windex® Vinegar Glass Cleaner on very hot or cold surfaces. The product may evaporate before wiping and cause streaking. Choosing the right towel can also help achieve a streak-free shine. Extra-absorbent paper towels can leave lint and film behind because they are treated.
When you first clean with vinegar, you might get streaking due to a film on the glass from commercial cleaners. Simply repeat the process of spraying and wiping the windows to get a clear finish.
Not only does rubbing alcohol polish mirrors, but it's also useful for cleaning windows and glass crystal too, according to Stephanie Cooper of Energy Cleaning.
If you're all about the DIY life, we've got just the thing for you. Combine two parts water with one part white vinegar in a spray bottle and you'll be all set with a homemade window cleaner. You can also combine warm water with a few drops of dishwashing soap if you prefer.
Salt and other minerals in the hard water might look clean as you wash the window, but once dry it becomes a white streaky mess. This is often seen on windows that are hit by sprinklers or ground water, although there are some areas that have hard enough water inside to look this way as well.
Use Vinegar
Whether you are out of name brand glass cleaner or you want to use a more natural cleaner, vinegar works wonders on windows. Try a 50/50 solution of vinegar and water for a streak-free clean. You can use a spray bottle or dip a rag in the solution, just like you would an ordinary cleaner.
Excessive Cleaning Solution
Whether you have purchased a premixed glass cleaner, or you are using your own soapy mixture, too much cleaning solution will cause streaky windows. It is a common misconception that the more cleaning solution you use, the cleaner the glass will be but with windows this is not the case.
Mix two tablespoons of white vinegar to one cup of water and, either using a spray bottle or a paper towel, apply the solution to the glass. The acid within the vinegar will break down any cloudiness.
The cloudiness comes from mineral deposits and buildup or from etching, so to clean cloudy glasses, you need to use vinegar or baking soda. With these simple household staples along with some Dawn dish detergent, you'll have your glassware sparkling like the day you got it in no time flat.
You can also make an all-natural window cleaning solution using a mixture of equal parts white vinegar and hot water. Adding a touch of liquid soap to the vinegar solution will help remove any streak-causing wax left on the window from commercial cleaners used in the past.