Double Glazing Cost Calculator NZ for 2021 by Superior Renovations ^®

A well-insulated house helps you maintain optimum temperature throughout all seasons. It protects you against cold in winter and heat in summer. This way you spend less on additional heating and cooling systems which makes insulating your home a very good investment. Insulation also provides a healthy environment for your home by preventing the build up of mould.

The four main areas that you can expect heat loss is your ceilings, walls, floors, and windows. Single glazed windows (or pane of glass) has been insulating and protecting our homes for centuries, but is there anything better than glass? The answer to this is double glazed windows and doors.

Factors in the result includes: Supply, Installation, Removal of Existing Windows, and Labour; it is also based on double glazing windows, aluminum framing, replacing existing frames, standard clear glass (no argon, gas) and no tint/coatings.

Click Here to Try the Double Glazing Cost Calculator by Superior Renovations

• Size of windows/glass required
• Type of Glass (Laminated Glass, Tinted Glass, Tough Glass, Low E-Glass)
• Type of Insulation (Air/ Gas)
• Type of Frames (Aluminium or Timber)
• Amount of work required for repair/removal and installation
• Access/ Scaffolding
• Number of changes to existing frame/structure
• Consent requirements
• Material/Custom Manufacturing costs

Double Glazing is the most expensive as compared to retrofitting or installing secondary glazing. This involves replacing your current windows with a IGU and new frames. If your priority is to increase the insulation of your home, then this is the best option to go with as it is the most effective. On an average it will cost around $35,000 to double glaze a 100m2 home in Auckland. If you choose Low-e glass panes along with Argon gas in the cavity then the price for double glazing will go up.

Different combinations of your IGU (window-panes, sealant, gas or still air and frame) will yield different R values. Some combinations will be more effective in insulating your home but not all homes need a high level of insulation. For example, if your home does not need high insulation then it is a waste to install low-e glass panes or Argon gas in the cavity which is a more expensive combination.

Reduce costs by:

• Choose clear glass or laminated glass instead of a low-e glass for your panes
• Opt for still Air instead of Argon gas for your insulated cavity between your glass panes
• Choose Aluminium as your window frame

This New Double Glazing Cost Calculator (Updated on August 2021 to reflect market prices of product and labour) is designed only for you to get an indication of what you can expect to invest based on the provided information  – but there are more factors that could impact on the cost of the project.

For every project there can be so many cost factors which will affect the accuracy of this calculator. Cost generated by this calculator are calculated by averages just to give you an indication and for research purposes. Always seek professional advice and quotations from a project manager if you require an accurate estimate specifically related to your home/property. Never use this calculator as a foundation for your allowances or finances – only for research purposes. Rates & material costs vary from region to region as well.

These results are not substitutes for written quotes from trade professionals. Superior Renovations strongly recommends that you contact reputable professionals for accurate assessments of work required and costs for your project before making any decisions or commitments.

Factors in the result includes: Supply, Installation, Removal of Existing Windows, and Labour; it is also based on double glazing windows, aluminum framing, replacing existing frames, standard clear glass (no argon, gas) and no tint/coatings.

Click Here to Try the Double Glazing Cost Calculator by Superior Renovations

Further Resources for your house renovation

1. Featured projects and Client stories to see specifications on some of the projects.
2. Real client stories from Auckland

Need more information?

Take advantage of our FREE Complete Home Renovation Guide (48 pages), whether you’re already renovating or in the process of deciding to renovate, it’s not an easy process, this guide which includes a free 100+ point check list – will help you avoid costly mistakes.

Download Free Renovation Guide (PDF)