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Made In Britain
Secondary glazing is a glazed panel in a frame that is installed to the inside of your existing window. There are different types of secondary glazing, ranging from a DIY plastic-glazed frame that can be clipped to the inside of a window. Or, a glazed unit that is professionally installed. The main reason homeowners install secondary glazing is when they can’t change their windows from the original architectural style of window, usually single glazed. This is either for listed buildings, properties in conservation areas, or to maintain the architectural integrity of the original design.
The gap created between a window and the secondary glazing creates a thermal barrier that has two main benefits. The gap helps the window to reduce heat loss – this is a huge benefit for period properties that struggle to increase their energy efficiency. The gap is also effective at reducing external noise and can be more effective than specialist noise reduction glass.
At Everest, we manufacture and install made-to-measure secondary glazing with an aluminium frame and glass pane. Our secondary glazing is unobtrusive, stylish and the perfect solution for buildings that can’t install double glazing. Everest secondary glazing is available in four styles, horizontal sliding sash, vertical sliding sash, hinged casement sash and fixed sash.
Everest secondary glazing units are fully glazed for optimal clarity and to avoid the hazy plastic of cheaper units. Frames are made from aluminium for a stylish, slim and unobtrusive unit. We offer horizontal sliding sash, vertical sliding sash, hinged casement sash and fixed sash styles. Everest secondary glazing is made bespoke for you in the UK, with a range of options and colours to choose from.
Horizontal Sliding Sash
Vertical Sliding Sash
Hinged Casement Sash
Everest aluminium secondary glazing windows are available in white or brown, with the same tone on the inside and out.
Download a PDF tech sheet for Everest secondary glazing.
Aluminium Secondary Glazing Download
Get in touch with our team today for a free, no-obligation quote.
If you live in a listed buildings or conservation area, it might not be possible to change your single glazing, so secondary glazing is a great solution for energy efficiency. The slim aluminium secondary frame is unobtrusive and almost invisible from the outside, blending seamlessly into your home to retain the external character of your property.
To ensure a perfect fit our Secondary Glazing is made-to-measure, reducing draughts or rattles from your old elegant windows. The thermally toughened secondary glass acts as a form of double glazing by trapping air between itself and the existing window, providing extra insulation to keep your home warmer and energy bills down. All in all secondary glazing costs you less and makes your home more cosy.
Secondary glazing is one of the most efficient ways to reduce noise levels coming into your home. The gap inside double glazing units is 16 or 20mm. Secondary glazing can create a gap of more than 100mm. The wider the distance between your windows and the secondary glazing and the more the sound is reduced.
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If you're blessed with wonderful original windows that you are restricted to change or you just prefer not to, then Everest secondary glazing offers you the benefits of double glazing. It's unobtrusive, robust and blends seamlessly into your home as seen in this picture.
Project: The Barnes HouseStyled by: Arianna TrapaniPhotographer: Colin Poole
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Here, the Everest secondary glazing is half open but the original window left closed. The close up picture on the right shows the clean flush fitting of the secondary glazing unit, the smooth running track and the brush seal to keep the draughts out when closed. Everything is virtually maintenance-free as well.
Like the frames, Everest secondary glazing handles are available in a choice of colours and are fully lockable. You can also have them offset. Enhanced security benefits include anti-burglar catches.
Our tolerance for gaps is far less than our competitors as seen here, where the secondary glazing fits perfectly into the window aperture so it can unobtrusively fulfill its role of keeping noise and draughts out and warmth in. All this while you can still enjoy your original windows.
Here you can see how the house and its windows have retained its original look. For once we’re delighted not to show you our products – from the outside, you simply can't see the secondary glazing at all.
Whichever angle you look from and even close up, the secondary glazing in these pictures just can't be seen. Instead you have the original glazing, just as it was, with the house retaining its wonderful character and history.
This picture dates from the 1970s, although we’ve been making secondary glazing for as long as we’ve been in existence. It was a great way to make your house quieter and warmer in the days before the arrival of aluminium double glazing (which we also pioneered).
Our secondary glazing is just at home outside the house, and numerous offices, institutions and even some police stations have had it installed over the decades. Nowadays it’s more advanced of course, but it’s still essentially the same practical, unobtrusive and effective solution that it’s always been.
Here’s the same room you saw earlier but styled differently. It shows how your home will continue to look just how you want it to, with the original windows forming the perfect backdrop and the secondary glazing unobtrusively keeping out noise, draughts and the cold.
Even with the window half open, the secondary glazing is barely noticeable. With this secondary glazing you can easily control the amount of air you want to let in. Factor in all the advantages like warmth, noise reduction and security, and we think that it makes an open and shut case for Everest secondary glazing!
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Made in Britain is an initiative set up to highlight the importance of products being manufactured in Britain.
Certified to ISO 9001, the most recognised quality management standard from The British Standards Institute.
Quiet Mark encourages companies to prioritise noise reduction and find solutions.
Secured by Design is a UK police initiative promoting products that help reduce crime.
FENSA have accredited Everest's installation of replacement windows, doors and rooflights in existing dwellings.
The BFRC is the premier UK authority for independently verified ratings of energy efficient windows and doors.