To repair rotten wooden single glazed casement windows in grade 2 listed cottage. 3 windows are approx. 4ft x 3ft, with 2 sashes each. 1 window is approx. 2ft x 2ft, single sash. In all cases sills have rotted, and bottom of sashes/frames have rotted. Replacements will be OK if unrepairable, but as grade 2 listed, Uttlesford council would rather they were repaired.