Thermally Broken Aluminium Windows Melbourne
A thermally broken window frame is made in two halves, an outside and an inside, joined by an insulating strip called a thermal break.
Our thermally broken series is ML102-TB. It comes as an awning window, which is hinged at the top, and as a sliding door and a side-hinged casement door.

24 to 48
hours

Measured
by us

Fitted
by our team

AS 2047
and AS 1288
What Is A Thermally Broken Window?
A thermally broken window has an aluminium frame split into an outside half and an inside half. The halves are joined by a strip that doesn't carry heat or cold, called a thermal break. The strip stops the cold outside travelling through the metal into your room. In our range, the thermally broken series is ML102-TB. For thermally broken windows in Melbourne, that means the ML102-TB awning window.
Quick Facts
- Our thermal break series is ML102-TB.
- It comes as awning windows, sliding doors and casement doors.
- They're double glazed too.
Get A Quote
Why Choose Us For Thermally Broken Windows 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.
Why A Plain Aluminium Frame Feels Cold
Aluminium is a metal, and metal carries heat and cold well. In a plain aluminium frame the metal runs in one piece from the outside face to the inside face. So on a winter night, the inside of the frame gets cold too.
That's why an old aluminium frame can feel colder to touch than the wall around it. It's also why water can form on it on a cold morning.
Double glazing, two sheets of glass with a sealed gap between them, looks after the glass. The thermal break looks after the frame.
How The Thermal Break Works
The drawing cuts through a frame, seen from above, with outside on the left and your room on the right. Tap the two buttons to switch between the frames, and watch where the cold goes.
Plain Aluminium Frame
The metal runs in one piece from the outside face to the inside face, so the cold travels straight through to the room side.
Thermally Broken Frame
The frame is two aluminium sections joined by an insulating strip. Heat and cold don't pass through the strip the way they pass through metal, so the cold stops there.
Which Of Our Products Are Thermally Broken
One series in our catalogue has a thermal break: ML102-TB. These catalogue photos show a corner of each frame cut open.

Awning Windows
ML86, ML102, ML102-TB
Thermally broken in ML102-TB.
Thermal break option
Sliding Doors
ML86, ML102, ML102-TB, ML150
Thermally broken in ML102-TB.
Thermal break option
Casement Doors
ML102, ML102-TB
Thermally broken in ML102-TB.
Thermal break option
Sliding Windows
ML86, ML102
Double glazed, without a thermal break.
No thermal break
Casement Windows
ML102
Double glazed, without a thermal break.
No thermal break
Bifold Doors
ML75
Double glazed. Our catalogue doesn't list a thermal break for it.
No thermal break
So for a thermally broken window, pick the ML102-TB awning window. For a door, it's the ML102-TB sliding door or the ML102-TB casement door.
The rest of the range is double glazed aluminium without the break. You'll find all of it with our double glazed windows and double glazed doors.
Thermal Break And Double Glazing Together
ML102-TB windows and doors are double glazed, so the break in the frame and the sealed gap in the glass work side by side.
You choose the glass that goes in: low-E, argon filled, laminated, acoustic or tinted. Low-E glass has a very thin coating that reflects heat. Argon is a gas heavier than air that fills the gap between the panes.
Our guide to low-E glass and the other glass options explains each one.
Handles On The ML102-TB Range
- Standard
Awning Window: Manual Winder
A small crank handle you turn to push the window out.
- Option
Casement Door: HOPPE Handle
A German HOPPE casement door handle.
- Black
- Silver
- Bronze
- White
- Option
Casement Door: Fingerprint Lock
A lock you open with your fingerprint or a code.
- Option
Sliding Door: HOPPE Or Siegenia Aubi
Handles from two German brands.
The Standards We Supply To
Our thermally broken windows and doors are supplied to AS 2047 and AS 1288, and to AS/NZS 2208 and AS 4666 where they apply. Certification is available on request, and what applies to your job is confirmed on the quote.
- AS 2047Windows and glazed doors
- AS 1288Glass in buildings, including where safety glass must go
- AS/NZS 2208Safety glass
- AS 4666Sealed double glazed units
Getting A Ballpark For Thermally Broken Windows
Count your windows and doors and add your suburb and a few photos. Use the notes box on the quote form to tell us which ones you want thermally broken. We come back with a ballpark, and the price is confirmed on your quote after we measure.
The windows go in 8 to 10 weeks after you sign off the drawings, and our own install team fits them. Our double glazing cost guide explains how the price is worked out.
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
Thermal Break Questions
Is A Thermally Broken Window The Same As Double Glazing?
No. Double glazing is two sheets of glass with a sealed gap between them. A thermal break is an insulating strip through the frame.
Our ML102-TB windows and doors have both.
Which Of Your Windows Are Thermally Broken?
The ML102-TB awning window. In doors, the ML102-TB sliding door and casement door are thermally broken too.
What Standards Are They Supplied To?
AS 2047 for windows and glazed doors and AS 1288 for glass, and where they apply, AS/NZS 2208 and AS 4666. Certification is available on request.

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



