Retrofit Double Glazing | Christchurch
Your local specialists in high-performance retrofit double glazing in Christchurch.
ComfortGlaze installs retrofit double glazing for homes across Christchurch and the wider Canterbury region. We fit modern insulated glass units into existing timber and aluminium window frames, improving warmth, reducing condensation, and helping make homes more comfortable year-round.
How retrofit double glazing works.
Retrofit double glazing replaces your existing single glass with modern insulated double-glazed units while keeping your current window frames. This means your home benefits from improved warmth, reduced condensation, and better energy efficiency without the cost and disruption of full window replacement.
Because the work is completed within your existing timber or aluminium frames, installation is typically faster and more cost-effective than installing entirely new windows.
Recent St Martins, Christchurch Installation
"We are thrilled with the retrofit double glazing work done by Comfortglaze on our character home. Their team are friendly, approachable and hard working. Special mention to Jake who went above and beyond with our installation. We are already enjoying the extra quiet from our new windows and are looking forward to seeing how they perform next winter".
Bella Z - St Martins
Do You Service My Area?
We service a wide range of areas across the region, covering both urban and surrounding suburbs. If your home falls within the highlighted map, our team can confidently manage your retrofit double glazing project from quote to installation. If you’re unsure or sit just outside the boundary, get in touch, our team will confirm availability and do our best to assist.
10 Garlands Road,
Woolston 8023
Christchurch
Home Comfort Steps
1. Home consultation
One of our team visits your home to assess your existing window frames and discuss your retrofit double glazing options. After the visit, we provide a clear, free, no-obligation quote for your project.
2. Final measurement
f you choose to proceed, we return to take precise final measurements so your new insulated glass units can be manufactured to fit your existing frames perfectly.
3. Manufacture
Your custom double-glazed units, new opening windows, and any other materials needed are then manufactured specifically for your home.
4. Professional installation
Once ready, our installers fit the new double-glazed units into your existing timber or aluminium frames, improving insulation while keeping the original structure of your home.
5. Final check
DescWe complete a final walkthrough with you to ensure everything is installed correctly and you are fully satisfied with the result.
Christchurch Double Glazing FAQs
Do you retrofit both aluminium and timber windows in Christchurch?
Yes. We retrofit double glazing into existing aluminium and timber frames throughout Christchurch and surrounding suburbs.
How long does installation usually take?
Most Christchurch homes with aluminium frames are completed within one to two days, depending on size and scope. Timber windows take a bit longer, more like three to five days.
Will double glazing help with condensation and cold winters in Christchurch?
Yes. Double glazing significantly reduces condensation and heat loss, improving comfort during colder Canterbury winters.
Do you remove windows overnight?
No. All work is completed on site, and windows are never left unfinished overnight.
Can you modernise older aluminium joinery?
Yes. We can remove colonial bars, redundant mullions, and unused doors while upgrading to high-performance double glazing.
How much does retrofit double glazing cost in Christchurch?
Retrofitting existing frames is considerably more affordable than replacing full window units. Pricing depends on window size, quantity, and glass performance, and we provide clear, obligation-free quotes for Christchurch homes.
Get In Touch
