Our Perspex Acrylic Secondary Double Glazing is a far cheaper than glass secondary double glazing as it is a simple DIY installation. Perspex secondary double glazing retains the outside appearance of your property, which is particularly useful if you live in a conservation area or a listed property! Perspex secondary double glazing is 96% optically clear and is much more light weight than glass, and will also not shatter like glass would! Request a quote for your specific dimensions.