Retrofit double glazing is the process of removing the existing single pane of glass in your windows and doors and replacing it with an insulated glass unit that also has a high quality low-e glass, which ensures your home is light, warm and comfortable all-year-round.

Throughout the South Island, and in parts of the North Island our Viridian Glass branches offer a premium retrofit double glazing service. 

For more information on the process: click here

To find your nearest retrofit double glazing installers: click here

A lighter, brighter home

Our low-E glass has a clear metallic coating that keeps the heat locked inside the home without sacrificing natural light. And, with 81% light transmission, it is the clearest Low-E glass available in New Zealand. 

Always stay warm

Heat loss can be reduced by up to 80% using our retrofit system. The combination of low-e glass within a double-glazed unit with argon gas provides the ultimate solution for all homes, ensuring you'll always be warm in your home. 

An easy choice

Using our premium low-e glass, you will save 52% on electricity compared to standard double glazing. Capturing and trapping the suns heat and light allows your family to be more comfortable in a much more economical way.