LISTED BUILDINGS ARE IDEAL FOR SECONDARY GLAZINGListed buildings is the ideal place for secondary glazing as it insulates and sound proofs a window that it is not possible to replace. Typical street in west London where we have fitted alot of our secondary glazing windows. 
Because the original sash windows are such a feature of your building why replace them when we can install secondary glazing on the inside, which will give you just as good if not better insulation and sound proofing than double glazing. 
So what is secondary glazing and why would you need it, well it is a second form of glazing rather than a replacement to your originals. We aim to match all of our secondary glazing inline with your windows so that once installed they are not visable from the outside. We offer a range of different secondary glazing windows to fit and match all existing windows. This Diagram explains the concept of our secondary glazing. 
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