
Windows Republic
4.7 86 Google reviews
Based in Cheltenham

uPVC double glazed windows have plastic frames that hold heat well and two panes of glass that block cold and noise. They’re one of the warmest and quietest window options you can choose.
A common sign
“Our windows are freezing in winter and we can hear every car that goes past.”
About uPVC double glazed windows
Double glazing traps a layer of air or gas between two panes of glass, which slows heat moving through the window. uPVC frames don’t conduct heat the way old aluminium frames do, so the whole window stays warmer to the touch.
This is a full window replacement, not a retrofit. It’s a bigger job, but it fixes the frame and the glass together, and new windows tend to seal far better than old ones.
Cold rooms near windows
Traffic and street noise
Condensation on windows
Ask about the whole window, frame and glass, not just the number of panes. The frame and how well it’s sealed into the wall matter just as much.

Not sure where to start?
Don’t waste money on upgrades you don’t need. A professional home energy assessment shows where your house loses heat and power, so your budget goes where it makes the biggest difference.
Find an assessor near meUPVC double glazing installers
A few of the 79 listed across Australia

4.7 86 Google reviews
Based in Cheltenham

4.4 57 Google reviews
Based in Moorabbin

5.0 93 Google reviews
Based in Epping

4.7 71 Google reviews
Based in Carrum Downs

4.3 259 Google reviews
Based in Hume
More in windows and glazing
Single glazing is where a great deal of your heating escapes. These trades retrofit the windows you already have, or replace them properly.

Slim frames with a thermal break. Common where the look of the original windows has to be kept.

Three panes for the coldest rooms and the noisiest roads. Rare in Australia and worth asking who has actually fitted it.

A second pane fitted inside the window you already have. Far cheaper than replacement, and it works on heritage frames.

Double glazed glass fitted into the frames you already have. The frames stay and only the glass changes.

Not every glazing job is double glazing. Rotten frames, jammed sashes and doors that never sealed properly.
Before you choose an installer



Related goal
See the different ways to improve your windows, from full replacement to adding a second pane.