It's time to change your windows, don't wait any longer, we are waiting for you at Cristaleria Formas. Windows with KOMMERLING systems represent the maximum innovation on the market in terms of insulation and resistance. Folding windows: the most insulating window systems from KOMMERLING. Achieve energy savings of up to 70% in heating and air-conditioning losses. This type of opening is ideal for providing thermal and acoustic insulation, while at the same time facilitating tasks such as ventilation and cleaning of the glazing elements. Sliding windows: KOMMERLING's sliding systems allow you to optimise the space and comfort of your home with quality sliding systems. Elegant and sophisticated designs with the latest technology to guarantee a long service life. Ideal systems for terrace doors and large openings