We have just completed the installation of these beautiful Accoya wood Casement windows, Stable door and Entrance frame. Factory finished with Teknos “Cotswold Oak” stain. Accoya timber carries a guarantee of 50 years against rot and decay, and the Teknos stain finish carries a guarantee of 12 years. These are the ultimate choice of timber window where energy efficiency and low maintence is required. These have been installed into a Barn conversion in Formby, Merseyside.