We think it’s quite simple. A rated products deserve no less than premier A rated installation since energy efficiency is only ever as good as it’s weakest link. All of those points basically refer to the hole in your wall and all of which will effect the finished window. When it comes to the actual installation a lot comes down to the installers skill and the relevant Glass and Glazing Federation installation guide to end up with an installation that surpasses building control standards and is fully in line with the windows energy effeciency rating. Thats why all of our installers are employed by us, we don’t use sub contractors.
