Secondary Window Glazing is a great solution for properties in conservation areas and listed buildings where it may be impossible to replace the existing windows with modern uPVC double glazing. It involves adding a supplementary pane on the inside of your existing windows, and this offers excellent thermal and acoustic performance.
This helps keep your home warm by trapping the insulating air between the existing window and the secondary pane, and is compatible with low-E glass which allows sunlight in but reduces heat loss, making it even more energy efficient. It also stops cool air escaping your building in summer and prevents cold air coming into the building in winter, reducing your heating bills.
Clear Comfort: Exploring the Benefits of Secondary Window Glazing
Another benefit is it reduces noise pollution from outside. This is particularly useful in urban areas where traffic and other external noise can be a nuisance, especially when you are trying to sleep.
The gap between the two glass panels creates an acoustic barrier that can cut external noise by 50 to 75%. This makes a massive difference to the quality of your home life and can dramatically improve your sleep.
There are various systems to choose from, ranging from DIY systems that can be easily removed in the summer to permanent wooden options with frames that match your existing windows. There are also fixed and openable systems, depending on the location of the window and how often you need to access it. Some of the DIY systems are a plastic sheet attached with magnets or can be easily lifted out, whereas others are screwed into place.