Windows And Doors
Retrofit Double Glazing Melbourne, And Which Kind We Do
Retrofit double glazing in Melbourne means adding double glazing to a home that's already built.
People use the word for two different jobs. We do the one where the whole window is replaced, frame and glass together.

24 to 48
hours

Measured
by us

Fitted
by our team

AS 2047
and AS 1288
What Is Retrofit Double Glazing?
Retrofit double glazing is double glazing added to a home that's already built. The word covers two jobs. One is fitting new double glazed glass into your existing frames. The other is replacing the whole window, frame and glass, with a new double glazed window in the same opening. We do the second kind, in aluminium.

Quick Facts
- We replace the whole window, frame and glass together.
- The new window goes into the opening the old one leaves.
- A 25-window renovation usually takes our team 3 to 4 days.
Get A Quote
Why Choose Us For Retrofit Double Glazing In Melbourne
We Measure Every Window
We come out and measure every window and door on the job ourselves. You don't need to measure anything to get a ballpark.
Our Own Team Installs Them
Our install team fits your windows and doors, usually 8 to 10 weeks after you sign off the drawings. We confirm the timing on your quote.
A Ballpark From Your Photos
Send your window and door count, your suburb and a few photos. We work out a rough price on the size of your windows in square metres.
Supplied To AS 2047 And AS 1288
Our windows are supplied to AS 2047 and AS 1288, and certification is available on request.
The Two Meanings Of Retrofit
When you ask for retrofit quotes, check which job each business means, because they're different jobs.
New Glass In Your Old Frames
A Whole New Window
- What changes
- New Glass In Your Old FramesThe single sheet of glass is swapped for a double glazed pane
- A Whole New WindowThe frame and the glass
- Your old frame stays
- New Glass In Your Old Frames
- A Whole New Window
- A new frame
- New Glass In Your Old Frames
- A Whole New Window
- A thermal break, an insulating strip through the frame
- New Glass In Your Old FramesNo. Your old frame stays as it was, aluminium or timber.
- A Whole New WindowYes, with ML102-TB awning windows
A Whole New Window
The old window comes out, frame and glass together, and a new double glazed window goes into the same opening. This is the kind we do, with new aluminium frames.
Why We Replace The Whole Window
A plain aluminium frame carries the cold outside straight through the metal into your room. When the whole window is replaced, the frame is new as well as the glass.
If you choose ML102-TB awning windows, the new frame has a thermal break, an insulating strip through the metal. Here's how thermally broken windows work.
New windows also come with new handles. Our casement and sliding windows have a Siegenia Aubi handle from Germany as standard. Our fly screens are stainless steel mesh, stronger than standard mesh.
Info · Single vs double glazing
Single Glazing Or Double Glazing?
A lot of older Melbourne homes still have one sheet of glass in each window. Double glazing puts two sheets in the frame with a sealed gap between them.
Is It Right For Your House?
- Does your house get cold in winter, even with the heater on?
- Does it get hot in summer, with the sun beating through the glass?
- Do you hear trains or trams going past, or planes going over?
- Do you live near a freeway or a busy road?
- Do your windows fog up or drip on cold mornings?
- Do your heater and air con run all day to keep up?
If you said yes to any of these, double glazing is worth a quote.


- Single glazing
- The glass goes cold, and so does the room beside it.
- Double glazing
- The sealed gap keeps the cold on the outside pane.
How A Whole-Window Retrofit Runs
Send Your Count
Tell us how many windows you have, your suburb and a few photos. We come back with a ballpark.
We Measure
We measure every window ourselves, because each new one is made to fit its opening. You get a ballpark on the spot.
You Confirm The Order
Once you sign off the drawings, the windows go in 8 to 10 weeks later.
Our Team Fits Them
Our install team of qualified carpenters takes the old windows out and fits the new ones.
Council Permits And Strata
You don't need council approval for like-for-like replacement, which means new windows going into the same openings as the old ones.
The exception is a home under a heritage overlay, a council rule that protects how older buildings and streets look. Under Clause 43.01 of the Victorian Planning Provisions, you need a permit to change the outside of a building in an overlay. That normally covers replacing windows, and your council can tell you if your home has one.
In a strata building, the body corporate, the owners group that runs the building, may need to approve the work first.
Price And Next Steps
We price windows on their size in square metres, and our double glazing cost guide explains how. Here's more on window replacement in Melbourne, and the double glazed windows we supply.
Explore The Rest Of The Range

Double Glazed Windows
Double glazed aluminium awning, sliding and casement windows for south and east Melbourne. We measure them and our own team installs them.
Learn More
Bifold Doors
Double glazed aluminium bifold doors in the ML75 folding door series, measured by us and installed by our team across south and east Melbourne.
Learn More
Sliding Doors
Double glazed aluminium sliding doors in Melbourne, including the thermally broken ML102-TB and the slim ML150 narrowline. Ballpark in 48 hours.
Learn More
Retrofit Double Glazing Questions
Can You Put Double Glazing Into My Existing Frames?
We replace the whole window, frame and glass together, rather than fitting new glass into the old frame. The new double glazed window goes into the same opening.
Is Retrofit The Same As Window Replacement?
For us, yes. When we retrofit double glazing, we replace the whole window. Some businesses use the word for new glass in your old frames, so check which job a quote is for.
How Long Does A Retrofit Take Once You Start?
A renovation with 25 windows usually takes our install team 3 to 4 days. The windows go in 8 to 10 weeks after you sign off the drawings.

Ready For New Windows?
Tell us how many windows and doors you have and your suburb, and we'll send you a ballpark price.




