And hotter temperatures can cause the cleaning solution to evaporate too quickly. Aim for air temps between 50-degrees and 75-degrees Fahrenheit for the best results.
Window cleaning professionals suggest avoiding window washing on very sunny days or at a time when a window is in direct sunlight, as the heat may cause the glass to dry too quickly and cause smears.
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.
Hot water cleans windows faster
Removes dirt more easily – hot water is more successful in removing dirt. This is because hot temperatures make dirt particles vibrate faster, which makes it a lot easier to wipe them away.
You should never clean windows when the sun is shining directly on them or on hot days. This is because the glass will dry too quickly and streaks will appear. A grey, but dry, day is therefore the most suitable time to clean your windows.
It's often best to clean windows when temperatures are between 64 degrees Fahrenheit and a temperature in the 70s. In other words, seek a day that's not overly hot. For many, this means either a day in the fall or spring or a very early morning on a cooler day in summer.
Fortunately, the process of cleaning windows is easy enough. Many commercial window-cleaning products are available, all of which promise to impart a “streak-free shine.” But we have found that a simple solution—one part white vinegar to two parts water—is perfect when mixed up in a spray bottle.
According to their report, windows should be washed twice a year, while screens need only to be cleaned annually. For many home owners and even renters, window cleaning usually is a once-a-year chore.
A little condensation on the inside or outside of your window isn't a major cause of concern. Wipe it away when you see it, and take steps to reduce the humidity in your house during the winter. And if there's a little condensation on your windows in the morning – don't worry.
"Generally, when it is really hot outside it is a good idea to keep windows closed during the daytime, as you don't want the hot external air to come into the house warming it up," she explained. "However, after the sun goes down, the outside air will start to cool down.
On a sunny day, the lather will dry quickly, leaving persistent streaks and marks even after you've scrubbed and dried your windows. Window cleaning professionals recommend cleaning on a cloudy day. This weather gives you a little more time before the lather starts to dry.
Chris added: "Much of the sunlight that enters your home through the windows turns into heat, so it's a good idea to keep your curtains and blinds closed, at least during the hottest times of the day. You may even want to opt for blackout curtains to keep windows covered and block the sunlight out completely."
Interior windows should always be cleaned using a professional squeegee and scrubber tool for a streak-free clean. Exterior windows can be cleaned the same way but can also be cleaned using a water-fed pole for clean results without streaks.
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.
The combination of dish soap and vinegar is highly effective for a few different reasons. They're both excellent at breaking down tough grease and grime, but vinegar alone will simply run off of most surfaces, and dish soap is too thick to use on its own.
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. Sweep away dirt: Using a broom, sweep away the cobwebs and debris from the windows and sills.
What happens if you don't clean your windows? "Mostly, you will slowly have less light coming into your home," Ek explains. "However, over time, a buildup of dirt particles can actually etch or degrade the glass."
Wipe the window glass dry with a rubber squeegee. Hold the edge of the squeegee at approximately 30 degrees to the glass, then make a horizontal pass across the window. 6. Use a terrycloth rag to wipe the squeegee dry after every pass.
For homes and small businesses it can take anywhere from one hour to three hours to have your windows cleaned professionally. For larger homes and companies it can take from 2 to 6 hours to have all the windows cleaned.
A squeegee. Squeegees take a little more work to get used to than cloth or paper, but the resulting difference is well worth it. On top of that, cleaning windows with a squeegee takes a fraction of the time.