The major ingredient in liquid glass cleaners is water. Almost all of the glass cleaners contain glycol ethers, usually ethylene glycol monobutyl ether. Alcohol, such as isopropanol, is also commonly found, as well as ammonia.
Professional window cleaners use a solution made from dish soap and water to achieve a streak-free clean. The key is to use a small amount of soap and distilled water. Some professionals add ammonia to the water for increased cleaning power.
Many leading window cleaning products contain ammonia because it is widely considered the best surfactant that gets the job done without leaving streaks. For that reason, many householders and commercial cleaners demand glass cleaners containing ammonia, such as Windex®.
One the easiest – and most environmentally sound – ways to clean your windows is by using good old white vinegar and water. It's non-toxic and naturally sourced. Make your own cleaning solution by simply mixing 50 per cent vinegar and 50 per cent water in a spray bottle.
Professional window cleaners like Window Genie are trained and experienced in this battle. Window Genie uses a polishing paste specifically designed to fight the minerals that create these stains. The paste is applied to a non-abrasive cleaning pad and the window is lightly scrubbed.
Window Washing Tips
If you want to take an environmentally friendly route (which we recommend), then a solution of warm water and vinegar will do the trick and get your windows clean. Some brands and types of windows are much easier to clean than others.
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.
A typical solution used by professionals is 3/4 cup clear ammonia or white vinegar, 1 gallon of water and 2 to 4 teaspoons blue Dawn dishwashing liquid combined in a bucket.
Spray a stronger mix of 1:1 water and vinegar (or Windex, or glass cleaner) at your window, so that the solution covers most of the glass. (I found Windex to work better, but if you have pets—or kids—who frequently lick outdoor windows, vinegar may be the best route for you.)
The blue solution in the reservoir is an alcohol-based glass cleaner probably diluted with some water. After multiple people have wiped bugs, mud, oil, and gasoline off their vehicle using the squeegee and dunked it back into the tub, that fluid is more filth than detergent.
Both a washing and a cleaning should leave you with streak-free glass, but a washing is a quick service that isn't as thorough. Window washing usually involves spraying on the solution and wiping it away with a squeegee to remove loose surface debris only. This isn't what's involved in window cleaning.
Mix up your window-cleaning solution: In a plastic spray bottle, mix together 2 cups of warm water with 1/4 cup white vinegar and 1/2 teaspoon of Dawn.
A big problem is the evaporation rate. If you're cleaning your windows on a warm sunny day, the liquid part of the solution evaporates quickly and leaves behind a residue that appears as streaks. On the other hand, if you don't entirely remove the liquid you can also be left with a streaky window.
Cleaning glass is more about the tools than the elbow grease. Even if you do exactly the right things, like mixing vinegar with distilled water and wiping with newspaper, it's possible to end up with a frustrating streak or three. In that case, the simplest solution is to finish the job with a quick buff.
Both vinegar and ammonia are good cleaning agents, but if you want to be on the safe side, then it's best to go with vinegar. Vinegar is less hazardous. When it comes to actually wiping the windows down, however, microfiber cloths are the best thing to use for absorbency.
To make your own window cleaner, you'll need a glass spray bottle and an 8-ounce bottle of Jet Dry rinse aid. For best results, use a microfiber cleaning cloth to wipe down windows. If you don't have microfiber cleaning cloths, you can use a microfiber mop instead.
Professional window cleaners try to clean when temperatures are between 50 and 75 degrees Fahrenheit (10-23 C). These temperatures are most common during spring and autumn seasons, making those the best times for outdoor window cleaning.
One of the biggest mistakes in window cleaning is to over-spray, making it hard to wipe off the cleaning solution. Dry the window. Immediately after you've sprayed your window with the cleaning solution, wipe it off from side to side using crumpled newspaper or a clean microfiber cloth. Work quickly to avoid streaks.
For most windows, combine equal parts distilled water and white vinegar. In most cases, it's best to do this in a spray bottle, but for larger windows combine more liquid in a bucket. For very dirty windows, especially exterior windows, combine 2 cups of water, 1/4 cup of vinegar, and 1/2 tsp of dish detergent.
Rather than mixing your homemade window cleaner in a spray bottle, combine 1 part vinegar with 1 part hot water in a bucket, and follow these steps to clean your windows: Soak a sponge in the cleaning solution. Dampen the window with the sponge, but don't drench the glass.