Dafen the village double glazed glazing company MPN serving customers in the east of Llanelli in Carmarthenshire, West Wales with the very best value quality affordable prices quotes and low cost upvc double glazing. Quality Double Glazing in Dafen! Find the best prices and options available to help you buy your new windows & doors supplied and fitted. High Quality Windows & Doors; Canopies & Car Ports; Sliding Sash Windows; Conservatories; White & Wood Grain Profiles; Our Best Price From local trusted traders MPN a Fensa registered company and Veka approved Installer.