thermoglaz windows in snow

Thermally Broken Frames

Thermally improved joinery for a drier, warmer home in winter or reduced heat in summer, featuring ‘thermal break’ polyamide technology.

Our range of windows and doors are custom-built for New Zealand weather conditions with a performance rating exceeding New Zealand Standards*

Enjoy up to 73% improvement in thermal efficiency, meaning a drier, warmer home in winter, reduced heat in summer and lower heating and cooling bills throughout the year.

* Tested in accordance with NZS4211:2008 and AS2047 (Ref: FMI)

broken thermal system

How does thermal joinery work?

This close up of the joinery gives you a visual of the polyamide strip, or thermal break, which reduces outside temperatures from being transferred through the frame, impacting internal temperatures.

thermal improvement graphic

Why thermal frames make a difference


These models show a non-thermal vs thermal frame. The outside temperatures on each model are the same (-1C), but there is a noticeable difference in the inside frame temperatures. Thermal frames reduce the heating required to create a warm, cosy, comfortable home.

We deliver exactly what we promise.

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Visit our showroom

20 Kennaway Road
Woolston, Christchurch
Monday to Friday
8:00 am to 5:00 pm
Weekends by Appointment