Welcome to Thermawood Canterbury. This year's winner of the New Zealand Heritage Glass Award and the New Zealand Residential Glass Award. Thermawood offers the most advanced double glazing system for existing timber windows in New Zealand and Australia. Our retrofit double glazed windows provide enhanced insulation with an IGU without the need to replace your entire window. By retaining your existing timber joinery, you can enjoy lower energy costs, improved insulation, UV protection, noise reduction, and added value to your property. Our unique dry glazing system ensures a seamless installation process, preserving the architectural integrity of your home. From our heritage glass importation we are able to restore your home using original textured glasses , refurbish your leadlights and manufacture them into a double glazed unit, manufacture coloured glasses for bungalow and villa fanlights. Visit our website to learn more about our services and request a quote. Turn your home into a comfortable, energy-efficient sanctuary with Thermawood's retrofit double glazing solution today.