
Double Glazing for Older Aluminium Joinery
Many New Zealand homes still have older aluminium joinery with single-glazed glass that does little to block noise or retain heat. Retrofitting these windows with Magnetite can make your home warmer, quieter, and far more energy-efficient—while helping reduce your power bills.
At Magnetite, we specialise in double glazing for older aluminium joinery, offering retrofit solutions that improve thermal and acoustic insulation by up to 70%. Our team assesses your existing aluminium windows, custom designs a solution, and installs it with care—preserving your original frames and avoiding costly replacements.
With over 25 years of experience, Magnetite supports Kiwi homeowners through a nationwide network of licensed fabricators, estimators, and installers—serving homes throughout the North Island.
Request a QuoteThe Benefits of Retrofitting Double Glazing
Upgrading to Magnetite for older aluminium windows delivers a range of benefits. It helps reduce external noise, maintains a comfortable indoor temperature year-round, and lowers energy costs by improving your home’s efficiency.
Our award-winning retrofit system brings all the advantages of double glazing—without the mess, waste, or cost of full window replacement. It’s a smart, sustainable way to improve performance while retaining your home’s original aluminium frames.

