United Glass Group is a group of four businesses operating in the UK architectural glass market. Premier DGU, based in Exeter, is the group’s most recent acquisition and the only company in the group that volume produces insulating glass units (IGUs). The other companies – Brownhills Glass and Tufwell Glass are flat glass processors, and London Architectural Glass is a specialist in structural units and fire-rated products.
Once the acquisition of Premier DGU was finalized in September 2024, Harrison jumped on a plane with Barry and Ross Worrall, Glaston’s UK representative, to see one of Glaston’s IGU lines in operation near the Czech border. Although United Glass Group has multiple Glaston furnaces running across the group, this is the first time they had purchased an IGU line.
United Glass Group placed an order later that month for a Glaston VARIO FLEX triple-glaze line. The line automates the production of gas-filled and sealed insulating glass units and incorporates flexible warm edge and rigid spacers.
The Glaston VARIO FLEX line, the first of its type and size in the UK, arrived in Exeter over Easter weekend in April and was installed over the next four weeks. An old line needed to be removed to make space for the new Glaston one.
The UK’s first compact, high-speed IGU line is now live, enabling fully automated production of double- and triple-glazed units with varying cavity depths.
Mark Harrison, CEO of United Glass Group, said it best, “Automation is key to our future success — and this new Glaston line delivers both efficiency and quality.”
A major leap forward for Premier DGU and the entire United Glass Group in high-performance glazing.





