Retrofit double glazing upgrades your existing windows by fitting new double-glazed units into your current aluminium or timber frames, rather than replacing the entire window. It’s a cost-effective way to improve warmth, comfort, and noise reduction.

Yes. We specialise in retrofitting both aluminium and timber windows, and we tailor the solution depending on the frame type and condition.

Timber: No, not if you want to keep the character of your home. There are however options to make adjustments or changes such as removals of transoms and mullions to create wider views. Aluminium: Yes, you are able to modernise the layout of your current joinery. Also all of the opening windows are replaced, with a more modern profile, new hinges and handles too.

In most cases, yes. When frames are in good condition, retrofit double glazing delivers very similar thermal and acoustic performance to full window replacement at a lower cost.

Yes. We offer free, no-obligation home assessments and quotes.

Yes. All our work is backed by a comprehensive warranty on both materials and workmanship.

We operate across multiple regions in New Zealand. Contact us to confirm availability in your area.

We assess frame condition during the quote. If frames are unsuitable for retrofit, we’ll tell you honestly and discuss alternatives.

Yes. Many landlords choose retrofit glazing to improve warmth, tenant comfort, and property value.