Secondary Glazing

If your home has period windows, you might find that they are draughty and noisy. However, we understand that you may not want to change the original frames.
But there is a way to keep the look and style of your period windows but also enjoy the warmth and comfort of modern glazing. The solution is secondary glazing from CR Smith.

We'll install a discreet internal frame in addition to your existing, single or double glazed window. It’s a cost effective and efficient way to insulate and soundproof your windows. This secondary glazing is so slimline and discreet, blinds can still be used and ornaments displayed on the window sill.
Secondary glazing is a very popular option for conservation areas, Grade A and Grade B listed buildings. This is because the installation process doesn’t change the external appearance and original materials of the building.
Its unique benefits include: noise reduction, improved thermal performance and increased security, all while retaining the original character of your home.

Noise Reduction

Secondary Glazing continues to grow in popularity, thanks to its unique sound proofing qualities, which is significantly better than double glazing.
The key to minimising noise levels is to install an extra barrier that sound waves find it difficult to pass through. For many homeowners, traffic noise is their biggest concern. In these instances, correctly fitted secondary glazing and using thicker glass can make a world of difference.

Thermal Performance

Installing secondary glazing adds an extra barrier to prevent heat loss. Up to 10% of heat from your house is lost through your windows.
The creation of an insulating layer of air is as important to the retention of energy as the fitment and seals. With the right secondary glazing and right specification of glass, heat loss can be reduced by as much as 65%.
Low-emissivity glass has a transparent coating which has been specifically designed to reflect heat back in to the room, reducing heat loss through the window and therefore energy consumption.

Clear – secondary glazing provides a complete internal seal, allowing balanced ventilation between your window and the secondary glazing. This stops the inner glass from becoming too cold and helps to tackle condensation.

Safe – frames are made from tough aluminium and securely fixed, making them extremely difficult to open from outside.

Simple – it can be retrofitted to virtually any building and building type, with little mess or intrusion.

Value – secondary glazing is less expensive than many primary systems. Window installation and maintenance is quick and simple.


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 0800 200 444

 Gardeners Street,
KY12 0RN

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