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Heritage Hinged Units Secondary Glazing

Heritage Hinged Units Secondary Glazing

Our most discreet secondary glazing product, featuring single handle operation and multi-point locking. Side and base opening is available, plus there’s a tilt and turn facility for easy maintenance.

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Download our Measuring Guide Hinged Units
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The Product...


  • Slim, unobtrusive aluminium profile
  • Easy opening due to internal gearing
  • Multi-point locking for enhanced security
  • Improved noise and thermal installation
  • Suitable for arched and shaped applications
  • Suitable to have bevelled timber subframe to fix into bays /splayed reveals
  • Can be coupled or stacked with other units in the range to treat large areas of glazing or long runs of windows
  • Can be supplied with restrictors

Variations of Basic Unit

  • Various handle and hinge options
  • Tilt & Turn, Anti Ligature and Double Hinged (DHHU) options
  • Standard and acoustic trickle vents are available
  • No subframe version available
  • Can be coupled and stacked using a heavy duty frame coupling section or timber to timber
  • Variety of stock colours available, including all RAL options
  • LH, RH, top or bottom orientation
  • Can accept flyscreen mesh

Heritage Hinged Units Secondary Glazing

The Technical Information...


  • Glazing options: 4mm - 8.8mm or double glazed
  • Choice of timber subframes
  • Pre-drilled and countersunk to suit either face fix or reveal fix
  • Woolpile inserted in to panel section groove to create outer frame seal
  • Gasket colour option of black or white
  • PVCu trims supplied for the face of the units to create a neat, clean finish
  • Standard colour white high gloss - RAL 9910
  • Lift out section has one rib running along the section

Optimum Noise Reduction: 54dB (Rw) Using 6.4mm acoustic laminate glazing, with 200mm glass-to-glass

Optimum U Value: 0.97 W/m2K Using 4mm toughened Low E glazing, with 80mm glass-to-glass

Heritage HHU
Configuration Based on 4mm Glass Hinged Unit Technical Drawing
Max width: 1,400mm
or Max height 2,400mm

Download the technical drawings for Heritage Hinged Units Secondary Glazing

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