5.18 Double glazing

5.18 Double glazing

Double glazed windows have two layers of glass with a gap in between, which helps keep your home quieter, warmer in winter and cooler in summer. It is one of the upgrades you may be able to choose through Home Energy Saver discounts.

Key features

  • Two layers of glass to slow heat and noise.
  • Warmer in winter and cooler in summer.
  • Can reduce outside noise.
  • A longer term improvement to your home's comfort.

How it works

Double glazed windows are made of two layers of glass with a gap in between, filled with air or gas, or vacuum sealed. This slows heat and noise passing through, so your home stays quieter and more comfortable all year round.

A few key facts

  • Savings: may save $500 or more a year on your heating and cooling bills, depending on your home.
  • Windows with a Low-E coating reflect heat to keep you warmer in winter and cooler in summer.
  • Works well combined with insulation and draught proofing.

Is it right for your home?

Double glazing may suit your home if you:

  • live somewhere with very hot summers or very cold winters
  • have old, single pane, leaky or damaged windows
  • want to cut outside noise.

Your electrical and safety assessment confirms what is right for your home before anything is installed. See Your electrical and safety assessment and quote.

Other government incentives

Some upgrades may also qualify for other NSW Government incentives, the Energy Savings Scheme (ESS) and the Peak Demand Reduction Scheme (PDRS). Where they apply, these are applied automatically to eligible products at estimate and quote, so you do not need to make a separate application. See How much will I pay? for your Home Energy Saver discount and contribution, and Other incentives for how these schemes work.

Learn more about NSW Energy Saving Schemes

Home Energy Saver discounts are funded by the NSW Government and delivered by Creditex.