Are you losing heat? Reports show that up to 10% of heat is lost through your windows. Installing secondary glazing adds an extra barrier to prevent heat loss.

As secondary glazing is often fitted with a 150mm – 200mm cavity from the primary window, the air filled cavity acts as an insulator. The creation of an insulating layer of air is as important to the retention of energy as the fitment and seals. With the right glass, the result can be a reduction in heat loss by as much as 65 percent.

For thermal insulation, low-E glass is often the best choice because the glazing has been designed and engineered to provide: