DOUBLE GLAZING
Find out more about our Sash Window services
DOUBLE GLAZING
Sash window double glazing services in the East Counties and Greater London
Looking for sash window double glazing services? Look no further and call Sash Window Preservation today for an accurate quote.
Sash window double glazing
Sash Window Preservation can offer double glazing for your existing sash windows without the costly expense and disruption of replacing the whole sash box and frames. Using a slimlite double glazed unit, we are able to fit this into the existing frame which means the original look of the window is retained. By doing so, the homeowner gains all the thermal and sound benefits without compromising the charm, character or value of their property.“It is not often that I get blown away by a building product, but I find this absolutely extraordinary, it looks like a single pane of glass.”
— Kevin McCLoud (Grand Designs) 2009
Qualified & professional
From double glazing and draught proofing to bespoke repair solutions, we have a range of services available to help you. Working with domestic and residential clients, as well as public organisations, no matter what your sash window needs, we are here to help.
You can be confident choosing us, we have an exceptional team of staff and are CERTASS qualified and an accredited CHAS contractor. In almost all cases our windows are manufactured locally using local suppliers. If you would like to arrange a free onsite or video quotation, just get in touch with us and we will be happy to help.
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We are truly passionate about preserving the heritage of our homes and feel that sash windows play a huge part in the appearance of a period property.
We are fully accredited so sit back, relax and be safe in the knowledge your windows are in good hands.

The benefits of
draught proofing
Our sash window draught proofing services are designed to help your windows operate at optimal capacity, reducing airflow by up to 86%. There are multiple benefits of draught proofing for your sash windows, including:
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Virtually eliminates draughts
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Prevent rattles
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Discreet
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Conservation and Listed Building approved
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Improvement in functionality of windows
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Improvement in thermal performance