Conservation-friendly secondary glazing in Sudbury & Cambridge

Owning a heritage home is a dream come true until you realise some original windows cannot be altered with high-performance double or triple glazing due to planning restrictions or aesthetic intentions. Secondary glazing allows you to keep the cold out without having to alter the existing character of the building.

Secondary glazing from A&B Asset helps you to defend and eliminate unwanted draughts

The process involves fitting an extra single glazed pane of glass over your existing windows. Completely bespoke to you, the 100mm gap in between works in a similar fashion to double glazing – effectively reducing heat loss by up to 70%.

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How does secondary glazing work?

Installing secondary glazing is a simple process. It adds a single pane of glass which is fitted to the inside of the existing window, leaving a 100mm gap. The gap between the two panes of glass minimises heat loss by up to 70%, significantly improving the energy efficiency performances of the window.

We are able to offer secondary glazing solutions to fit any size or style of window. Our expert glaziers will cut the glazing to meet the exact requirements you need to maximise the thermal insulation and security of your windows.

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Sliding sash windows with secondary glazing
Aluminium secondary glazed windows

Secondary glazed windows for listed properties and conservation areas

For property owners of period properties that are limited by building regulations, secondary glazing allows you to retain the heritage beauty of your home, whilst improving the performance. With our advanced and A+ rated glazing, your home's thermal performance and durability will compete with that of modern glazing solutions. Our secondary glazing is approved for use in conservation areas and areas of outstanding beauty because it doesn't disturb the traditional appearance which is protected on many older homes.

Our range of secondary glazing profiles are available in over 150 colours, so we can ensure the perfect design to effortlessly complement the existing style of your home. You can choose from a range of openings to, including vertical and horizontal sliders, tilt openings, lift out and hinged options.

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Read our helpful glazing blogs

Secondary Glazing

Our Accreditations

BSI 9001 2015
BS 7412
Fensa Approved Installer
GGF logo
trading standards institute approved
Ultraframe conservatory installer
QA National Warranties
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