Canterbury Home Show · Stand 75

Come and see us at the Canterbury Home Show.

Thermoglaz will be at Wolfbrook Arena from 16 to 18 October. Come and see retrofit double glazing up close and talk to our Christchurch team. If you can't make it, send us your details now and we'll be in touch.

16–18
October 2026
Fri – Sun
10am – 5pm daily
  • WhereWolfbrook Arena, Addington
  • Find usStand 75
  • EntryFree, but register for your ticket
Christchurch family-owned · 20+ years retrofitting Kiwi homes
Home Show special
Glass upgrade
Available now

Order LowE Advanced glass and only pay the LowE Standard price.

LowE Advanced is our best-performing glass. For the Home Show you can upgrade to it for the price of LowE Standard. Register now or come and see us at Stand 75 to lock it in.

20+
Years retrofitting Kiwi homes
30+
Years industry experience
WGANZ
Window & Glass Association of NZ member
Site Safe
Accredited member for safe install
At Stand 75

Why it's worth stopping by.

It's a lot easier to understand double glazing when you can see it in person. Bring photos of your windows if you have them, and we can give you a much better idea of what's involved.

See the product up close

See how retrofit double glazing fits into existing timber and aluminium frames.

Talk to the team

Ask the Christchurch team about your home, your frames and what to expect, face to face.

Get the show special

Get LowE Advanced glass for the price of LowE Standard. Ask us how it applies to your home.

Book your assessment

Book a free in-home assessment and quote before you leave the show, with no obligation.

Two retrofit pathways

Timber frames or aluminium, we do both.

Whatever your window frames are made of, we have a proven way to upgrade them to modern thermal performance without ripping them out.

Bay window with timber frames in a Thermoglaz retrofit
Timber Frames

For character homes with original joinery

We remove the single-glazed panes from your timber windows and doors and fit new high-performance double-glazed glass into your existing frames.

  • Keep the look and character of your original timber joinery
  • Significantly cheaper than full window replacement
  • Minimal disruption, with most homes done in a day or two
  • Compatible with leadlight, colonial bar and coloured glass
See timber retrofit →
Modern home with aluminium-framed windows retrofitted by Thermoglaz
Aluminium Frames

For 70s, 80s & 90s aluminium-framed homes

We install Thermoglazed units into any existing aluminium frame, in any size, shape or finish.

  • Works with any existing aluminium window or door
  • No need to replace frames that are still structurally sound
  • Dramatically reduces condensation on aluminium frames
  • Massive thermal performance gain for minimal cost
See aluminium retrofit →
What homeowners say

Five stars, hundreds of warmer homes.

★★★★★
5.0
based on Google reviews
★★★★★

The team at Thermoglaz have been great to deal with. Andrea was super friendly, helpful and thorough when measuring, quoting and discussing options. Ratu and his co-worker were friendly and speedy with the install. The final product is great and would definitely recommend.

Miharo
Google Review
★★★★★

Right from the start Scott was fantastic at walking me through all the options. Ratu and the team carried out exemplary work — having had a bad install previously, I can see such a difference. Incredibly impressed by the care and time gone into my new double glazing. Wouldn't even bother looking elsewhere.

Brianna Nicholl
Google Review
★★★★★

Thermoglaz did a great job at retrofitting our aluminium windows as well as installing full replacements. Despite our house already being fully insulated, the double glazing has certainly increased the warmth and comfort of our home, as well as noticeable noise reduction. Great to work with from quote through to installation.

Stephen Stern
Google Review
Common questions

Before you visit.

When and where is the Canterbury Home Show?
Friday 16 to Sunday 18 October 2026, 10am to 5pm daily, at Wolfbrook Arena in Addington. You'll find Thermoglaz at Stand 75. Entry is free. Register for your ticket online or on the day.
What is the Home Show special?
Order LowE Advanced glass, our top-performing glass, and only pay the LowE Standard price. Register your interest or talk to us at the stand and we'll explain how it applies to your home.
I can't make it to the show. Can I still get the offer?
Yes. Fill in the form on this page and the team will get in touch to arrange a free in-home assessment.
Can I really keep my existing window frames?
Yes, that's the whole point of retrofit. We remove your single-glazed panes and slot in new double-glazed units that fit your existing timber or aluminium frames, so you keep the character and pay well below the cost of full replacement.
How long does the install take?
Most homes are done within 1–2 days. We work room by room so your home stays liveable throughout.
Do you offer a warranty?
Yes. Both product and workmanship are warranted. We're WGANZ and Site Safe accredited members and have been doing this for over 20 years.