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Window and door replacement

Rotten frames, sashes that won’t open and doors that never seal properly all let in draughts and let out heat. Replacing them fixes the problem at the source.

Find local installers How it works

A common sign

“There’s a gap under the back door you could fit a finger through.”

Old or poorly fitted doors and windows are a common source of draughts. Sometimes they can be repaired. Sometimes it’s time to replace them.

About window and door replacement

Doors and windows that actually close properly.

Over time, timber frames rot, houses move and doors and windows stop fitting the way they should. That leaves gaps that let cold air in and warm air out, and can make them hard to open, close or lock.

Not every job is double glazing. Sometimes it’s replacing a single rotten window, or fitting a new external door that seals properly. A good specialist will tell you whether something can be repaired before recommending replacement.

Helps with

Rotten or damaged frames

Helps with

Doors and windows that stick or won’t lock

Helps with

Draughts around doors and windows

Ask this

Ask whether repair is an option before you commit to replacing. And if you do replace, ask about double glazing at the same time.

Not sure where to start?

Stop guessing, start saving: find your home’s energy score.

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 me

Window and door replacement specialists

Find window and door replacement specialists near you.

A few of the 298 listed across Australia

Work by Windows Republic.

Windows Republic

4.7 86 Google reviews

Window and door replacementuPVC double glazed windowsDouble glazed aluminium windows

Based in Cheltenham

Work by Canny Windows and Door Replacements.

Canny Windows and Door Replacements

5.0 72 Google reviews

Double glazed aluminium windowsWindow and door replacement

Based in Cheltenham

Work by Original Glazing.

Original Glazing

5.0 91 Google reviews

Double glazed aluminium windowsWindow and door replacementRetrofit double glazing

Serves Balwyn and Deepdene and nearby suburbs | Based in Balwyn

Work by Winplex Double Glazing Windows & Doors.

Winplex Double Glazing Windows & Doors

4.4 57 Google reviews

uPVC double glazed windowsWindow and door replacement

Based in Moorabbin

Work by Iconic Windows and Doors.

Iconic Windows and Doors

5.0 82 Google reviews

Double glazed aluminium windowsWindow and door replacement

Based in Mulgrave

More in windows and glazing

Other upgrades in this category.

Large white framed double glazed windows set into the pale stone wall of a modern home, a sunlit living room and gum trees reflected in the glass.

uPVC double glazed windows

The warmest frame of the common options, and the quietest. A full replacement rather than a retrofit.

Large black aluminium framed double glazed windows, one awning sash open, set into the pale stone wall of a modern home with a sunlit living room inside.

Double glazed aluminium windows

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

A dark-framed casement window open on the curved rendered wall of a modern home at golden hour, floor-to-ceiling glass and a living room behind it.

Triple glazed windows

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

A hinged secondary glazing panel open inside a white timber sash window in a period living room, a gum tree outside.

Secondary glazing

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

The original white timber casement windows of a 1930s bungalow, now double glazed, one open onto a garden of gum trees in warm afternoon light.

Retrofit double glazing

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

Before you choose an installer

See our guides on windows and glazing.

Windows Double glazing, secondary glazing, or curtains Three very different price brackets solving the same problem. What each one genuinely does, and when the cheapest option is the right one.

Insulation Where the heat actually leaves your house Ceiling, walls, floor, windows and gaps, in the order they matter, and what each one is worth in a typical brick veneer home.

Start here The right order to upgrade your home Insulation before heat pump sizing, sealing before ventilation, and solar later than you would think. The dependencies nobody explains before you are quoted.

Related goal

Draughts coming from everywhere?

Doors and windows are only part of it. See the upgrades that stop draughts and heat loss across the whole house.

Stop draughts and heat loss See all windows and glazing upgrades