You are here: Secondary Glazing
We specialize in the supply & installation of Internal Secondary Double Glazing for Noise and Thermal Insulation.
We supply and or install our products into flats, houses and commercial premises throughout London and surrounding counties, wherever there is a need for Noise and/or Thermal Insulation, especially where the character of the property makes more modern replacement type windows inappropriate or, in the case of Listed or Conservation Area properties, where they are not allowed.
When the major consideration is to Reduce Noise, Secondary Double Glazing will always be much more effective than replacing the existing windows.
An additional benefit of Secondary Double Glazing is that it provides increased security.
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.
How it works
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.
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.
How it works
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.
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 system provides sensitive solutions to the problems created by noise and sound pollution.
How it works
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.
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 with traditional sash windows.
How it works
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 our 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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