Welcome to Thermawood. The most advanced double-glazing system for existing timber windows, and only glazing system for timber windows that is compliant to NZS4211
Thermawood retrofit double glazed windows creates a unique dry glazing system for double glazing the existing timber windows and doors in your home and is designed to fit any existing timber joinery.
We specialize in character homes, double hungs, leadlites, and textured glass.
The patented retrofit double-glazing works by enhancing insulation with an IGU, without having to tear out your entire window and then to be stuck with new double-glazed aluminium windows or an extremely expensive window replacement with new double glazed timber windows.
We work to your budget, we quote room by room, you can do one window, one room or your entire house! The choice is yours!
