Aluminium Secondary Glazing

Why Use Secondary Glazing?


  • Improve thermal efficiency & reduce energy costs
  • Reduce outside noise and draughts
  • This is NOT double glazing - keep your existing windows
  • Perfect for Grades 1 & 2 listed buildings, conservation areas & commercial windows
  • Keep the look and feel of your existing windows
Is Secondary Glazing Right For Your Windows?

We can provide secondary glazing for a wide range of window designs:
  • Traditional style windows
  • Modern casement windows
  • Sliding sash windows
  • Shaped windows & even some doors
  • Our vertical and horizontal sliding systems are available to view and test out in our showroom.

***We also supply and install fly screens - please call in at our showroom for a demonstration***

Quality Guaranteed 


Manufactured from elegant slim aluminium profiles L&L's secondary glazing is available in various configurations and even in different colours. Different glass specifications are also available to give enhanced heat or sound insulation as well as obscure, toughened or laminated glass.

Renowned for its thermal efficiency in standard form, our units can be upgraded to give even more insulation by incorporating Low E glass. The sound reduction qualities of the system have been tested at the AIRO Acoustics Laboratory in accordance with BS2750: Part 3 and BS5821: Part 3 1980: 1984.

All units are purpose made for your home. One of our trained consultants will be happy to arrange a visit to asses your requirements and provide you with an all inclusive quotation upon request. Please contact us for further details.

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