The best time of year to clean windows is typically during the spring or fall seasons. During these times, the weather is often more moderate, with milder temperatures and less extreme conditions. This makes it more comfortable to work on cleaning the windows and allows for better results. In the spring, you can remove the buildup of dirt and grime that accumulates over the winter months. In the fall, you can prepare the windows for the colder months by ensuring they are clean and in good condition. However, window cleaning can be done throughout the year as long as the weather conditions are suitable. For the best results, it’s important to avoid cleaning windows during extreme weather conditions.