It is one of the facts that house cleaning has become very important these days especially in the case of office buildings as you cannot afford to have dirty windows. For cleaning your windows the best thing that you might purchase is window cleaning detergent. This kind of detergent is best for cleaning windows not only from internal side but also from the external side too. Windows are the part of your house or office building that is required to be clean not only from outside but also from inside too. If you have proper tools for cleaning your windows then you can do it easily but if you do not have proper equipment then it is better for you to hire some professionals.