FAQ

Retrofitting a window will involve replacing the glass. The window frame inside, stays then a new glass and energy-efficient window is installed.

As the first step, consider better insulation around your house, be it roof/wall/ceiling insulation, double-glazed windows, fans and vents, or other causes. In winter, an average New Zealand home can lose up to 40% of its heating energy through windows and gain twice more in summer or up to 87%.

Two layers of glass create what's called a thermal break and reduce both, percentages of heat from coming in and escaping out. Performance glass such as low emissivity glass (Low-E), coupled with argon gas and warm spacers allow to improve the thermal performance of a window even further.

Besides inferior thermal performance, single glazed windows provide little protection against heat, cold, noise, and condensation. They are also made of dangerous float glass which causes serious injuries when cracked. Proglaze uses toughened safety glass that will never harm your family members even if smashed.

Proglaze double glazed windows will noticeably reduce street noise compared to conventional single glazed windows.

Proglaze double glazed windows will cost more than single glazed aluminium windows, however, the difference in cost will be compensated for through electricity savings.