From October this year, all new window installations will have to be carried out by BFRC and FENSA registered installers and all new windows will have to be officialy registered 'C' or 'A' rated windows.
Of course if you are in luck if you are currently having your windows installed by Prior Products, as we are already BFRC licensed and have been making energy rated windows for a while now!
Better for the environment and much better for your heating bills!