Dessian manufactures the REHAU 703 Tritec (60mm) system and REHAU TOTAL70 (70mm) uPVC window and door systems. We have developed our product range over the last 29 years and always strive to provide frames that offer both efficiency and aesthetic appeal, backed up by excellent customer service. Please contact us for more information.


Fully Reversibles

Fully Reversibles are are extremely practical, especially for tall buildings as they can be turned right round, allowing for the glass to be easily cleaned on both sides. To aid safety, there is a restrictor system which prevents opening the window too wide.


  • Available in White on REHAU TOTAL70R system only
  • Conforms to Part L Building Regulations (thermal efficiency)
  • Internally glazed
  • Night vent facility
  • Multiple restricted opening positions
  • In line/flush sightline with sash and frame
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