Canterbury winters are no joke. If your home still has single-glazed windows, you are losing a significant amount of heat through the glass every single day - and paying for it.
Retrofit double glazing keeps your existing timber or aluminium frames and replaces only the glass with a sealed double-glazed unit. That means less disruption, lower cost, and the same excellent thermal performance as brand-new windows.
Why homeowners in Selwyn retrofit
Most of the homes we work on around Darfield, Kirwee, and Coalgate were built well before insulation standards caught up. The frames are often in good condition; it is the glass that lets the home down.
- Reduce heat loss by up to 50% through your windows
- Eliminate condensation on the inside of the glass
- Reduce outside noise
- No resource consent needed for like-for-like upgrades
- Keep your existing window frames intact
“Hunter Glass retro double-glazed my windows. Punctual, reliable, fastidious and an absolute pleasure to have in your home.”
Jenny Laney
What it costs
Every home is different. As a rough guide, most Canterbury homeowners spend between $12,000 and $25,000 depending on the number of windows and the glass type required. Send us a photo and measurements and we will give you an accurate quote.
How long it takes
The timeframe depends on your window type. Aluminium retrofits typically require 4 to 6 weeks for materials to be manufactured, but installation is usually completed quickly once everything arrives. Timber retrofits often have shorter glass lead times, however they take longer to install due to the additional labour and detailing involved. Overall, most projects are completed within a few weeks to a couple of months from measure to installation.
