Clean Window for Clear See Through
For a clear see through, windows should be washed completely both internally and externally. In external window cleaning accessibility is the main issue with cleaning them. When you are reliant on a ladder or suspend platform to access a window for cleaning you are probably better off using a gentle hose or calling a professional.
Outside windows are very prone to weather, dust and sun abuse its paint is often in very poor condition. When cleaning a window remember to be gentle or run the risk of damage. At the same time, regular cleaning helps to reveal rot and mould damage, often giving you the opportunity to reduce the impact.