Upgrade Your Home To Double Glazing Before Winter Hits

Find out how much you could be saving by filling out our quiz or click below to talk to our team about a quote.
Retrofit Double Glazing Energy Savings Calculator

Retrofit Double Glazing Savings Calculator

Calculate your potential energy savings in 30 seconds

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Timber
🏢
Aluminium (Older)
Average NZ home is ~150 m²
🏠
2 Bed / 1 Bath
Small (~80m²)
🏡
3 Bed / 2 Bath
Medium (~140m²)
🏘️
4+ Bed / 2+ Bath
Large (~210m²)
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Grand Home
XL (~280m²)

This helps us calculate your total heat load.

Original Condition
Little to no insulation in walls/ceiling
Renovated / Standard
Ceiling & underfloor insulation present
High Performance
Full insulation (walls, ceiling, floor)

Thermal Performance Estimate

Select a glass type to see the performance gains:

❄️ Winter Warmth

Heat Loss Reduced: 0%

Stops 0 kWh of heat escaping every year.

☀️ Summer Comfort

Reflects solar heat

Reduces UV fading

Estimated Annual Energy Savings: $0

Get Your Professional Quote

Complete the form below to request a detailed home assessment.

Your Assessment Summary:
... potential annual savings.
Based on ...m² floor area.

Request Sent!

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A member of our team will be in touch shortly to confirm your assessment.

How Retrofitting with Thermoglaz Works

Thermoglaz has been helping homeowners in Canterbury improve their home’s comfort by installing modern glazing into their existing window frames for over 20 years. This has allowed Cantabrians to keep their old character window frames, while reducing energy transfer through their windows by up to ~83% and blocking ~80% of harmful UV rays entering their home.

Retrofit Timber Frames

Retrofit Timber Frames

A pioneering, reliable and simple process of removing your existing single glazed panes from your timber windows and doors, then installing new high performance thermally insulated double-glazed glass into your existing frames.

Retrofit Aluminium Frames

Retrofit Aluminium Frames

We can install Thermoglazed units into any existing aluminium frame of any size or shape of door or window, and with any finish. We provide you the most professional and reliable system available on the market we guarantee it stands the test of time.

The Thermoglaz installation process is designed to be totally painless with minimal interruption to you, and with over 30 years experience in the glazing industry, you know you’re in safe hands.

Get in touch

for your FREE quote today

Visit our showroom

20 Kennaway Road
Woolston, Christchurch
Monday to Friday
8:00 am to 5:00 pm
Weekends by Appointment