High quality windows and doors from windows24.com not only reliably fulfil their purpose, but are also really eye-catching. However, preparations must be carried out before you can enjoy the use of these high quality products. For example, the precise dimensions are necessary for the order, and the old windows and doors must be removed in existing buildings. Measuring, removal and installation are child’s play with proper step-by-step instructions. This work can even be done by amateurs.