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E Mail - londonsecondaryglazing@gmail.com
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The Glass:-
4mm toughend glass (available in Low Emissive Glass)
6mm toughend glass (available in Low Emissive Glass)
6.4mm laminated glass
6.4mm Stadip sound proofing glass
(Others available please enquire)







What they do:-
Our windows are usually fitted inside the home. Inside your window reveal, onto your existing window frame or onto our own fitted timber. They work so efficiently because be create a cavity between our glass and your original glass effectivly giving you double glazing but on a larger scale as the glass has a larger cavity between panes, shutting out sound by upto 80% and insulating your home by cutting out the draught and heat loss.

Secondary glazing will reduce you carbon footprint and save you money on your heating bills.
Primary Window              Secondary Window             RW
4mm Glass                                None                             26
4mm Glass                            6mm Glass                       39   
4mm Glass                            Laminated                        40
4mm Glass                            4mm Glass                       39
4mm Glass                           6.4 Acoustic                       43
Research
Noise reduction tests carried out by the Building Research Establishment with a 100mm air gap between the external window and the new secondary glazing have produced results indicating the average noise reduction levels as follows:
The results are presented as single figure ratings, RW, calculated using the secondary glazing, the condition of the existing window will have an effect on the figure achieved

Technical Information