Double Glazed Glazing suppliers installers and fitters for local Llwydcoed village and community north of the Cwm Cynon, near the town of Aberdare, Rhondda Cynon Taf, Wales. A window with insulating glass is commonly known as double glazing or a double-paned window, triple glazing is more energy efficient. Llwydcoed get a quote and price for bespoke made to measure double glazing for your house and home.