AJ Windows and Doors have three options available when it comes to uPVC Vertical Sliders The Ultimate Rose The Ultimate Rose was one of the first uPVC Vertical Sliders to be granted for use in a conservation areas. Most people would not be able to tell that this product was not timber. With a wealth of period features this window really does stand out from the crowd. With its vintage charm The Heritage rose offers a sympathetic alternative to timber. The Charisma Rose With a