WarmCore Bi-fold Door

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WarmCore Bi-fold Door

WarmCore, an innovative aluminium folding sliding door system which incorporated a radically different design approach to deliver a new high performance warm aluminium.


Using 28mm double glazing, the WarmCore folding sliding door with low E glass gives an improved U-value of 1.4W/M2K, howver a U-value as low as 1.0W/MK is also achievable.

Using 44mm triple glazing precision manufactured with high quality surface finish and affording slim sight lines when installed, aluminium has become the material of choice for premium sliding folding door applications.

At the heart of WarmCore products is a thermal core which significantly outperforms the polymide thermal breaks commonly used to reduce the threat of cold bridging on aluminum windows and doors



  • Folding sliding door leaves are triple sealed to eradicate draughts and ensure weather proofing
  • Custom engineered hinges are designed with security in mind
  • Integral door bolt feature for high security
  • Hardware options of Black or Silver Satin furniture
  • Interest Free Credit available on all installations over £1500
  • Available in White, Cream, Black and Grey
  • Free Quote with no obligations
  • Affordable prices
  • Request online today