Glyncorrwg. MPN Windows modern uPVC A-Rated Bespoke made to measure Double glazing installer in Glyncorrwg, Port Talbot, SA13, South Wales. Showrooms Address MPN Conservatory World House: Glyncorrwg Industrial Estate, Unit 14, Port Talbot SA13 3EA. Showrooms fully open for your viewing and clear free quotes for new and replacement uPVC and Aluminium to composite double glazing.