Windows · Home upgrade
Double glazing
Two layers of glass with a gap between keep your home quieter, warmer in winter and cooler in summer.
Two layers of glass
Year-round comfort
Cuts outside noise
Registry
Available products
Double glazing services currently available.
Overview
What is double glazing?
Double glazed windows have 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.
It is a longer term improvement to your home’s comfort, keeping you warmer in winter and cooler in summer. It is one of the upgrades you may be able to choose through Home Energy Saver.
Windows with a Low-E coating reflect heat to keep you warmer in winter and cooler in summer. Double glazing works well combined with insulation and draught proofing.
Suitability
Is it right for your home?
Double glazing may suit your home if you:
- want to keep your home more comfortable year-round
- have old, single pane, leaky or damaged windows
- want to cut outside noise
Your home assessment confirms what is right for your home before anything is installed.
Function
How it works
Insulating gap
The gap is filled with air or gas, or vacuum sealed, to slow heat moving through.
Low-E coating:
A Low-E coating reflects heat, keeping warmth in during winter and out during summer.
Quieter home
The extra layer also dampens outside noise for a quieter home.
At a glance
Key facts
$500+
Possible yearly saving
May save $500 or more a year on heating and cooling bills, depending on your home.
Low-E
Heat-reflecting coating
A Low-E coating reflects heat to keep you warmer in winter and cooler in summer.
All year
Comfort benefit
Keeps your home warmer in winter, cooler in summer and quieter throughout.
Quieter home
Cuts outside noise
The second pane of glass also dampens outside noise, not just heat.
Pairs well with
Often installed together
Double glazing performs best as part of a well-sealed, well-insulated home.
Insulation
Batts material laid in the roof cavity to slow heat moving through the ceiling.
View product →
Draught sealing
Seals around doors, windows and gaps that stop draughts creeping in.
Learn more →
Reverse cycle A/C
Heats and cools efficiently by moving heat rather than generating it.