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How did we get to be one of the UK’s largest PVCu window and door fabricator? Based at multiple manufacturing sites across the UK, all of our divisions were originally individual businesses that through development and acquisition became the MASCO UK Window Group in 2001 which was then sold 2019 forming UK Window Group.

Then through business restructure and alignment we became UK Windows & Doors Group, and it was through this journey that transformed the business to what it is today. 



UK Windows & Doors Group incorporates ‘super fabricators’ Griffin Windows, Cambrain and Premier Trade Frames, along with dedicated glass manufacturer Techniglass, all based in South Wales. Based in Gloucestershire, you’ll find leading PVCu systems company Duraflex which has a long and distinguished pedigree in extrusion.

The most recent acquisition was Evolution, an industry leader in specialist ‘timber-alternative’ windows and doors manufacturer based in Bedfordshire. Completing the UKWDG divisions, we have our nationwide trade depot network, Sevenday Windows. These all work together to deliver a complete service offering to our customers through each of our business divisions.



  • 1953
  • Duraflex established with an initial focus on manufacturing Aluminium products
  • Duraflex entered into the doors and windows sector
  • 1970
  • 1988
  • Cambrian Windows established
  • Duraflex developed their own PVCu extrusion operation
  • 1990
  • 1995
  • Sevenday established, Newport being the first branch
  • Griffin Windows and Premier Trade Frames established
  • 1991
  • 1997
  • Two more Sevenday branches opened as Sevenday continued to grow. Duraflex launched the Diamond Suite.
  • Techniglass Established
  • 2000
  • 2004
  • Duraflex becomes a Limited company and is bought by Masco Corporation alongside Premier Trade Frames and Cambrian Windows.
    Duraflex moved factory, warehose, and office to the one state-of-the-art, purpose build facility in Tewkesbury.
  • Move of Factory, Warehouse and Office to one state-of-the-art, purpose built facility in Tewkesbury
  • 2004
  • 2005
  • Evolution was founded and started manufacturing windows and doors 
  • Evolution was the first fabrication company to introduce white wood grain effect windows and doors
  • 2006
  • 2007
  • Evolution introduced the process of bespoke foiling and the development of the unique 36mm window bar
  • Group launched high performance Q-Lon world best weather seal as standard across Diamond Suite
  • 2008
  • 2009
  • Evolution launched their first branded window range called Storm.Group launched Cavity Closer
  • Extensive testing for all Group divisions including PAS 24 enhanced security for both windows and doors manufactured on the Duraflex. Diamond Suite, Kitemarks for our glass units from Techniglass, and several ISO 9001 & 14001
  • 2012
  • 2014
  • Launch of SafeChoice
  • Acquired Evolution. Group launched 5 camber outer frame
  • 2015
  • 2016
  • Group launched standarded welded Flush sash, Aluminium Bi-Fold Door. UPVC bi-fold door, new and improved trickle vents and single leg bead. ISO 9001 Quality Management System Evolution
  • BS4873 / PAS24 Enhaned Security Aluminium Door System Supplier Duraflex. Innovative Flush casement window is launched. Unveiling of a dedicated Aluminium and PVCu Bi-fold Door System
  • 2017
  • 2018
  • Group launched extra large head (outer frame), one white, new Fully Reversible Window, Flush residental and Double Doors
  • Masco Corportation sold Masco UK Window Group, forming UK Windows & Doors Group. Launch of the new improved Bay Pole range and Timber Alternative. Cottage Window System
  • 2019
  • 2020
  • Through business restructure and alignment became UK Windows & Doors Group. Taffs Well Hub opened. Further developement delivers 'eZee Fit Security' bead. ISO45001 Occupational Health & Safety Management System. Techniglass and Duraflex
    'Home Creations' Range of marketing and sales support materials introduced
  • New Build Relaunch. Fully Reversible Relaunch to wider customer base. Timber Look Joint Flush Sash. Launched the new AOV Window, Cavity Closer, and Foil offering with additional Substrates
  • 2021

"UK Windows & Doors Group employ over 900 people throughout the UK, and is a key employer in the South Wales community. "