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Double-glazed windows are very energy efficient. They help reduce heat loss or heat gain by almost 30% compared to single-glazed windows.


To be eligible to upgrade your windows and get a discount you must:

  • be a Victorian household or business
  • have single glazed windows.

Your participation is voluntary.

Living in a rental property?

If you’re living in a private rental property, you are eligible to receive a discount on window glazing. We recommend that landlords and tenants work together when doing any upgrades to a rental property.

Available upgrades

The Victorian Energy Upgrades (VEU) program provides discounts for the following:

  • replacing single glazed windows with double glazed windows
  • installing a product to existing windows to improve thermal efficiency.

Key steps when organising a window glazing installation

To get a discount on the installation of window glazing you must:

  1. install an approved product.
    Hint: research these products for their suitability and quality. There are a lot of products approved for installation as part of VEU. Not all products are of the same quality or suitable for every environment.
  2. work with an accredited provider.
    Hint: get quotes from several providers. Accredited providers offer different types of products, services, expertise and costs. Make sure to get a quote from several accredited providers on the final installed price of the appliance, which includes the discount.

Working with accredited providers

An accredited provider is:

  • any business that is approved to deliver or facilitate installations in the VEU program
  • responsible for helping you get a discount on an installed appliance through the VEU program.

When doing an installation through the VEU program, accredited providers can either:

  • use their own tradesperson, or
  • work with a tradesperson of your choice.

Accredited providers will be able to explain:

  • the steps to take part in the program
  • the types of products can you install to get a discount
  • the necessary qualifications of the tradesperson who installs the window glazing.

Remember: you must work with an accredited provider to get a discount on an installed appliance through the VEU program.

How to check if a person or business is accredited under the VEU program

Go to the Essential Services Commission’s VEU Registry of Accredited Persons and:

  • select the ‘Business Name’ drop-down menu
  • scroll until you see the accredited provider you are searching for.

Note: accredited providers often work with installers who are not listed on the registry.

Find an accredited provider in your area

How much discount you can expect

The final installed price of the appliance, which includes the discount, is up to the accredited provider and will depend on several factors, including:

  • certificate price (which fluctuates)
  • location
  • installation costs
  • the accredited provider’s administrative costs.

For more information on the certificate price under the VEU program, please see Victorian Energy Efficiency Certificates (VEECs).

Can’t find an accredited provider in your area?

Please note that as VEU is a market-based program:

  • not all accredited providers listed above will necessarily be offering window glazing at present
  • accredited providers can choose when and where they undertake upgrades.

Page last updated: 08/09/23