Got my small window made by a local company. Now I've only ever fitted two DG windows and from memory they were pre-glazed and I used tabs on the side. To long ago to remember tbh. Any tips?   Sill How best to attach this? Options are mitre bond, Sika EBT, CT1 or some st/st wood screws up through the bottom. Or even a line of low expansion foam?Whatever, I think it needs a continuous "wet" seal to at least minimise draughts:       End Caps Mitre bond?