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HERONHURST install quality Granada Secondary Glazing Collection Secondary Glazing by HERONHURST enabled more traditional properties to maintain exactly the character and charm of their period properties, whilst providing vast improvements to security, insulation and sound proofing The HERONHURST Secondary Glazing System is available in The exclusive Granada range of secondary glazing comprises an aluminium outer frame joined to a seasoned hardwood surround which allows for a neat, unobtrusive installation even in the most difficult situations. A range of hardwood sub-frames and scribing trims can be specified
Your
HERONHURST Granada Secondary Glazing can come in Smooth
White, Van Dyke Brown, Silver Anodised and Woodgrain
effect finishes - and we can even colour code in the
exact finish to your requirements from the complete RAL
colour selection This allows the satisfactory refurbishment of our largest primary windows. Suitable for all types of premises including grade one and two listed buildings, schools, colleges, hospitals, universities, hotels and commercial buildings i.e. offices  
| LIFT OUT |
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Economically, the Lift Out is the most cost effective type of secondary glazing available. Its most common application is where limited access to the primary window is required, for example a window which has been installed with the sole object of providing light to a room
As well as economical, the Lift Out is also the most basic form of secondary glazing. As its name implies, it simply lifts out of a secured channel. For practical purposes, it is advised that the sash size be considered since the weight of glass must be of manageable proportions. Each sash is manufactured with double brush pile seal, further increasing the thermal and sound insulation properties
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| HINGED |
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When it comes to providing an unobtrusive secondary glazing system, the hinged unit provides the most appropriate solution, since there are no transoms or mullions to spoil the view. The reduction in noise, and improvement in thermal insulation, greatly enhances both the living and working environments
The hinged unit can be manufactured in two main types. The single hinged unit opens on a restricting friction stay. Where the application is on a larger scale, the friction stay is replaced with a butt hinge. We have developed and rigorously tested a variety of butt hinges for differing leaf weights. The double hinged unit has been primarily designed to fit in front of larger Windows or French Doors, utilising the same range of hinges
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| HORIZONTAL SLIDERS |
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The Horizontal Slider is undoubtedly the most frequently used type of secondary glazing. Its uses are therefore widespread, being applied to high rise or low-level commercial properties, historic buildings as well as all kinds of domestic dwellings. The Granada system provides sensitive solutions to the problems created by noise and sound pollution
Generally available in two, three or four panelled versions, the sashes are fitted with brass rollers, ensuring the smoothest sliding action. Twin brush seals provide excellent high sealing efficiency. This has been scientifically proven to eliminate draughts, increase thermal insulation and give greater improvements to the security of the primary windows. The security issue is further enhanced with the use of the latest locks and handles
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| VERTICAL SLIDERS |
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Due to the
characteristics of the existing primary window,
the Balanced Vertical Slider is the most complex
type of secondary glazing system. It is applied
generally to older properties. It is
particularly suited to the refurbishment and
upgrade of the nation’s architectural heritage
The individually
pre-tensioned spiral spring balances control the
motion of the sash, enabling infinite vertical
positioning. This design provides ease of
movement and has been specially developed to
withstand decades of wear and tear. Tilt in
versions can be pivoted through almost 180
degrees. This is especially useful for cleaning
but just as importantly can be crucial when
considering fire escape requirements. All
variations of Granada’s exclusive secondary
glazing styles are completely compatible. Each
type can be easily used with another no matter
what the application may be
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All HERONHURST product lines now include "Fit and Forget" Technology. Designed for no maintenance after professional installation
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