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Heritage Putty Line Windows

The Heritage Putty-Line window has been designed and as a direct replacement for old putty glazed steel windows with the benefit of a thermally broken frame, enhanced security and. Replicating the authentic look of putty line steel windows with 45° angled design and slim sight-lines. Our putty-line windows maintain the character of your home whilst achieving improved thermal and weather performance.

Our Heritage Putty-Line windows offer a huge improvement over steel in terms of thermal performance corrosion resistance and security. Our heritage range are fitted friendly, offer great U values and include the latest in glazing technology.



  • Authentic replacement window for original putty glazed steel windows.
  • Reduced cost compared with steel windows.
  • Thermally broken aluminium frames for added thermal efficiency.
  • Low maintenance, corrosion resistant frames.
  • Multi-point locking combined with traditional door furniture.
  • Various glazing options to match different styled windows.
  • Has been used in conservation, heritage areas and period properties.
  • Can be installed into brick or existing timber sub-frames.