ThermaWood
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Retrofit New Zealand Limited (Thermawood) is the industry leader installing double glazing into timber frames and specialise in retrofitting existing timber joinery. We aim to continually improve our performance through gathering information on how we can encourage and utilise sustainable practices in order to ensure a better future tomorrow by saving energy today.

Thermawood are continually developing new products to keep us at the forefront as the industry leaders and innovators. We are fully committed to sustainability in all our operations. Our purpose is to bridge the gap between manufacturers of sustainable building solutions.
Services
The Thermawood Retrofit Double Glazing System creates a unique patented dry glazing system for timber windows and doors for your home. The patented Thermawood Double Glazing system is designed to drain any moisture from the rebate around your double glazing to create longevity of your double glazing and peace of mind that your double glazing will last a long time.
Incorporating Double Glazing technology into existing timber windows and doors of Australian homes. Some houses in Australia still have single glass panels for their home's exterior windows and doors. Sticking to one panel often isn't enough to keep homeowners comfortable in fluctuating temperature conditions.
In Australia, more and more homeowners are opting for double glazed doors instead of single glazed ones. Thermawood's Retrofit system is a top-tier choice for double glazing old and existing doors for your home. Double glazing requires the use of two glass panels instead of the usual one. This way, you can enhance the insulation properties of your home's glass doors.
Double glazing old windows is slowly becoming the standard for homes. Thermawood Australia, meets the demands of the market and supplies Retrofit double glazing for timber windows in your home. With double glazing, you use two glass panels instead of one. The system is designed to fit all types of wooden window joinery, suiting both your requirements and the property.
At Thermawood we also offer double glazing for new window and door construction by supplying our patented double glazed drainage system to joiners.

Incorporating Thermawood's double glazing system into new timber window and door framing, joiners are now able to take advantage of the many benefits that have taken years of research and development such as the patented drainage system that ensures the longevity of your double glazing and wooden windows.Much cleaner internal and external sightlines due to the purposely designed self-adhesive wedge.
Reviews (6)
Jodie R.
Jodie R.
Nov 05, 2021
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Had Mark install the double glazing to our sash windows. The bathroom also needed frosted glass. He was also able to fix the beads so the windows now open! Was a pleasure to deal with. Reasonable price and we are very happy with the product. Highly recommend.
Hugh Hardy
Hugh Hardy
Sep 17, 2021
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Joel and his Team were fantastic to deal with . Polite , on time and delivered a fantastic product that is sympathetic with the house and we are so thrilled with the end result . We feel this was very good value for money investment. Significantly reduced noise and temperature variations immediately and well finished with attention to detail that has made a major improvement to our home . Highly recommended to anyone wanting to use their services
Tim Kiddle
Tim Kiddle
Sep 05, 2021
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Excellent communication with Joel. Workmanship by his team was very good. Joel came to inspect the windows before work commenced and to and check the work as it was progressing. Very happy with the results, working with old Victorian windows and with modern french doors. Tim, Fitzroy North
W. F.
W. F.
Aug 15, 2021
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Fantastic outcome by a great team. We’re really pleased with the outcome and immediately noticed the difference. As my partner said “the team were a nice presence to have around the house for a few days “ . Will be recommending
Val A.
Val A.
Jul 18, 2021
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We are very pleased with our new retrofitted double-glazed windows. The Thermawood team were very polite, friendly and efficient and the end result is a noticeable difference in temperature and sound!
Wish we’d done it years ago! Highly recommend! .
Peter Braun
Peter Braun
Aug 29, 2020
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I highly recommend Thermawood. The whole experience from quotation to installation was faultless. We had 10 windows replaced with double glazed units and immediately noticed an improvement in warmth and a reduction in noise. The windows look great and the very friendly and able installers also adjusted them so that they open and close without sticking. I wish all companies were this easy to deal with. Thanks guys!