Secondary glazing noise and sound insulation properties





Office : 0800 612 5548


Mobile : 07875 369 855



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North London Secondary Glazing
Unit 4
Noke Lane Business Centre
Noke Lane
St. Albans, Herts



Secondary glazing noise and sound insulation properties



Secondary Glazing Products


Find out more information about the different types of secondary glazing we can provide



Custom made & special secondary glazing units



Many windows in older traditional properties are out of square - in most cases these can be fitted with standard secondary double glazing by shaping of the timber sub frame and the use of bespoke finishing trims.


Both modern and old windows and doors often have decorative arches, curves and shapes. It is important to match these often unique features with the lines of the internal secondary glazing.


  • We have the facilities to curve and bend sections as well as the expertise to produce angled secondary windows
  • NLSG work with all sorts of specialist glasses and apply film to glass for security, tinting, etc
  • NLSG offer the full RAL colour range for frame finishes as well as other woodgrain and special paint finishes that can match the existing or proposed decor or create a special effect.



bespoke shape glazing custom shape secondary glazing odd shpare secondary glazing custom made windows

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Custom secondary glazing items



  • Double Glazed
  • Circular
  • Arched
  • Curved In Plan
  • Shaped
  • Bay Details
  • Splayed Reveal Fixing



  • Anti-Ligature
  • Coupling Details
  • Stacking Details
  • Low Threshold Doors
  • Double French Doors
  • Units With Trickle Ventilators
  • Units With Integral Blinds




Contact the NLSG team to find out how we can help you.