These windows are virtually indistinguishable from classic timber sash windows, but - thanks to the durability and low-maintenance properties of PVC-U they will never rot, swell or warp and you won't need to worry about repainting them! With such an authentic style, these windows are ideal for heritage properties and conservation areas. They have 'horns' to mirror the style of the traditional timber counterparts. These classically-styled PVC-U window systems don't just look beautiful, they perform beautifully too. You should enjoy years of trouble-free operation with no further maintenance than an occasional wipe with soapy water and a drop of oil on the working mechanisms.