Duraflex - quality and innovation as standard.

The Duraflex range of profile is manufactured to the highest quality standards and is at the forefront of product development and innovation. Our product range is also the result of advanced design and manufacturing experience. 

All products detailed are available in 65mm and 70mm front-to-back sizes. Our systems are designed to exceed all current standards, including thermal performance and enhanced security.

System Design

System design allows the same sashes and beads to be used for both systems which improves stockholding, machinery and preps in addition to allowing the same hardware and reinforcements to be used to fabricate both systems.

In addition all mainframe sections are supplied with our high performing Q-lon gasket which allows higher compression and recovery rates over a wide temperature range to give the ultimate in performance. Furthermore it comes with a lifetime guarantee.

Our 70mm system is available with 5 chambers to further enhance performance. All this is achieved due to our unique rebate design which allows the full integration of all components.


A comprehensive range of solid colour and natural wood effect foils are available across our product range.

Foils allow you to further bespoke the look of a home and create that bespoke look. Furthermore, all our foils are supplied on 100% calcium organic material and applied using our eco friendly process.

All foils are also available in thee options: Foil on the outside and white on the inside, foil both internally and externally and also white outside with foil inside, the choice is yours.


Benefits of a common rebate detail

  • Common hardware keeps
  • Common range of beads
  • Common reinforcement options
  • Common range of sashes

Featured and Bevelled Rebate detail

  • Feature details are designed within the bevelled angle to give improved aesthetics and provide a detail which is more traditional.
  • The feature detail is easier to clean and results in improved quality consistency when compared with ovolo details

Energy Efficiency

  • All casement products can be supplied in any of the above specifications to achieve the necessary WER (Window Energy Rating). A, B and C products are supplied with the appropriate BFRC label/certificate which can be used in the consumer's HIP packs.

Weather Performance

  • All windows are tested to the latest British/European standards for air, water and gusting performance via BSI and BBA.

Security Performance

  • Windows are available to meet Secure By Design standards, this is based upon meeting the requirements of BS7950 and exceeding ‘Enhance Resistance’ testing.

the world’s best weatherseal gasket.