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Retrofit Double Glazing

Retrofit for a warmer home in Winter

Winterglaze® Double Glazing is designed to reduce heat loss through inefficient single-pane windows, which have traditionally been the standard windows installed in New Zealand homes.

Single pane glass allows valuable heat to quickly conduct precious warmth from inside your home to the outside environment,  a waste of energy and money. Upgrade single panes to double glazing and keep your home warmer and drier for winter, and cooler in the summer. An investment in comfort and efficiency

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How Winterglaze® Retrofit Double Glazing Works

Winterglaze® Retrofit Double Glazing is designed to enhance your home's existing windows by adding a second layer of glass, creating an insulated space between the original and new panes. This sealed air—or gas-filled—gap acts as a thermal barrier, reducing heat loss and improving energy efficiency. By upgrading your windows with Winterglaze, you gain all the benefits of double glazing without replacing the entire frame.

 

Why Choose Winterglaze® for Your Retrofit Double Glazing?

Available through authorised Winterglaze dealers, our system is tailored to deliver optimal performance with expert installation. Every Winterglaze unit features high-quality materials, including insulated glass units (IGUs) manufactured in New Zealand, ensuring excellent thermal performance and durability.

Backed by a 5-year warranty and the nationwide support of the HomePlus network, Winterglaze offers peace of mind along with superior features and benefits. When you choose Winterglaze, you're not just upgrading your windows; you are investing in long-term energy savings, enhanced comfort, and trusted local expertise.



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What are some of the advantages of Winterglaze® Retrofit Double Glazing? 

  • Reducing heat loss - installation of standard IGUs (Insulating Glass Units) can decrease heat loss by between 47 and 54% 
  • Upgrade standard to a speciality gas, Low E & Argon IGU, which can decrease heat loss by between 69 and 73%
  • Reduction of window condensation (when used together with adequate ventilation), Winterglaze Retrofit Double Glazing will noticeably reduce the amount of condensation on windows
  • Drier home: A more comfortable home and healthier by reducing moisture and mould, aggravating factors for asthma and other respiratory conditions
  • Colour match: Matching Winterglaze Retrofit units to current joinery colours ensures any visual impact is virtually non-existent
  • Glare/fade reduction: adding a tint to IGU glass will reduce glare and help protect furniture from fading
  • 5-year warranty
  • Corrosion-resistant aluminium available in a range of frame colours
  • Noise reduction: Winterglaze Retrofit doubling glazing will reduce outside noise, especially with laminate glass

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