Secondary Double Glazing

The most effective and cost efficient way to reduce noise ingress and sound proof your windows is to fit secondary glazing. Any of our secondary glazing will reduce noise from outside, however there are certain glass types that are better than others for noise reduction. Ordinary glass at 4mm thick will significantly reduce noise, however if noise reduction is paramount then we recommend our 6.4mm Laminated or 6.8mm Acoustic ‘Stadip’ glass. These glasses can reduce external noise by as much as 75 - 80%, are thicker and heavier than ordinary 4mm glass, and will go a long way to improving thermal performance as well. You can further reduce the noise pollution heard from the outside world by up to as much as 90% when using our double glazed Heavy Duty secondary glazing.

Sound Proofing

Reduce Heat Loss

When it comes to saving energy, windows and lofts are the prime areas in which heat loss can easily and cost effectively be prevented. Our secondary glazing can reduce heat loss through your windows by up to 50%. Ordinary 4mm ‘Float’ glass in our secondary will make a significant improvement to heat lost, however further improvements can be made by using ‘K’ glass (which has a special heat reflecting coating), 6.4mm Laminated glass or using Heavy Duty secondary glazing with double glazed units.