What Is Secondary Glazing?

Secondary glazing is a slimline, aluminium framed window that fits inside your existing window and helps to keep the warmth in and the noise out.

What Is Secondary Glazing

Whilst secondary can be used in almost any building, it is frequently used in listed buildings and those in conservation areas where replacement uPVC windows aren’t an option.

How Does Secondary Glazing Work?

Once installed, an air gap is created between the existing window and the secondary. The air gap serves to reduce both outside noise and heat loss. There is also the secondary pane of glass which provides a further barrier. The secondary we use features a twin brush sealing system that helps to prevent draughts from the existing window.

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