It's generally best to clean windows when temperatures are between 64 degrees Fahrenheit and a temperature in the 70s. In other words, look for a day that isn't too hot. For many, this means a fall or spring day or a very early morning on a cooler summer day. Therefore, spring is the best time with the ideal temperature to clean windows, since winter weather has made them dirtier.
In most cases, it's more beneficial to wash outside windows during the spring or fall months. Winter temperatures can cause frosts if the wrong cleaning solution is used, and summer temperatures can cause scratches when the sun causes the cleaning solution to evaporate before you finish cleaning the window. No matter what the season, it's usually best to wash windows on a cloudy day or early in the morning. When the window is exposed to direct sunlight, it can cause the cleaning solution to evaporate and leave scratches on the window.
Spring can be a valuable time to clean outside windows, as it can help remove debris and grime from fall leaves and winter storms. In fact, many people add cleaning their exterior windows to their spring cleaning checklist. Use an alcohol- or vinegar-based cleaning solution mixed with cold water. Vinegar and alcohol not only break up dirt, but they also prevent water stains as the water dries and prevent the water from freezing.
Some people use a solution that includes antifreeze, such as the one you would put in your car, but we advise against it, since it is harmful to the environment, it can kill plants under windows and it's not safe to breathe fumes. Creating your own solution is much safer and much, much cheaper. Because cleaning windows is a difficult task for the vast majority of homeowners, you may be wondering how to choose the best time of year that offers the most lasting results. One of the biggest misconceptions about window cleaning is that it only makes sense to do it in the sunny months.
Clean windows will allow more sunlight to enter the building, creating a much more cheerful environment. So, whether it's for the inside or outside of your home, or for a house or apartment, we understand that window cleaning isn't something you're going to do every day. Unfortunately, it is sometimes necessary to clean up winter dirt to let the sun in, see through windows and continue with household chores.