uPVC Double Glazed Bifold Windows

All of our profiles are high quality german profiles from Aluplast and manufactured locally in Moorabin, Melbourne. We use uPVC double glazing which provides many benefits over timber and aluminium. With Winplex you can select your own colour for the inside and outside to transform your home.

Key Points

Provides excellent ventilation and airflow.
Modern aesthetics that can match the style of your home.
Flyscreens are standard and already fitted.
Offers good views of the outside.

Profiles provided in uPVC double glazing

Lets in a lot of sunlight.

Winplex double glazing projects

Amazing Windows Quality

We have just had Winplex windows installed, the quality of these windows is amazing. We have already noticed the difference is the temperature on a warm day, so much cooler .The workers were a pleasure to have, they work very well together as a team , very polite and very helpful. We have had so many people comment on them. We are very happy, thanks to Phoenix and his team.

– Marianne

Amazing price for Windows

Just had my new windows installed through Winplex and couldn’t be any happier! From getting the quote to instalment the service has been amazing! Amazing price compared to other quotes I had received and well in our price range. Constant check ins and following up was on point. Our new windows and doors look phenomenal and I’m over the moon! Highly recommend Winplex to anybody who is looking at getting double glazed Windows.

– John

Loving my new windows

I’m loving my new Winplex windows. I got them installed just in time for that super hot day yesterday – even though it was 44 degrees outside, I barely used my A/C all day! They look great, and the built in fly screens mean that I can have the doors and windows open without letting in any insects. The Winplex team kept in contact from ordering, through installation and then followed up with me afterwards. I couldn’t be happier.

– Linda

Why Choose Bifold Windows

Winplex Double Glazing installs across Melbourne and Mornington Peninsula to your specific requirements

uPVC Windows Ventilation


Bifold Windows tend to be wider than other Window types. Due to their larger openings, they can let in the cool breeze and let out humidity and heat at the same time.

Better Views

Views and Sunlight

Bifold Windows provide better views due to their width. This also allows more sunlight to brighten your home.

Space Saver

Space Saver

Bifold Windows close like an accordion. Unlike windows that swing inwards or outwards to open, you don’t have to worry about clearing space for Bifold Windows.

Why uPVC Double Glazing?

Views and Sunlight


Keep your home warmer in winters and cooler in summer.

Home Security


Toughened / laminate up to 8mm which is unbreakable

Noise Reduction


Sound proof your home with up to 90% noise reduction.

Bifold Windows vs Hinged Windows

Bifold Windows
Hinged Doors
Hinged Windows can take up space due to the fact that they swing inwards or outwards to open. That means you need to provide clearance, which may not be an option if you have small living or office space.

Hinged Windows, as well as Tilt and Turn Windows, can also get loose over time, making them swing shut or open with just a slight gust of wind or if they’re not leveled. You don’t have to worry about that with a Bifold Window.

Bifold Windows vs Sliding Windows

Bifold Windows
Sliding Windows

Sliding Windows typically open up on one side while the other is either fixed into position or won’t provide much opening since they will overlap with the other glass panel. Sliding Windows are also prone to getting dirt on their sliding mechanism.

Likewise, the grease could dry out over time which will make them harder to slide open/close. Bifold’s simple yet clever design allows it to open and close like an accordion.

Personal service, quality product and competitive prices

Bifold Window Sizes

If you’re not sure which window size to get, check out what each size offers below.


Perfect for small bedrooms, bathrooms and even basements.


Great for master bedrooms.


Best for larger spaces where you want more sunlight, ventilation like the living room, kitchen or towards the front of the house.

Double Glazing Melbourne

Our Bifold Windows are one of the most popular window options because it provides maximum sunlight and accessibility, as well as adding a unique design to your home.

All profiles are designed in Germany using Aluplast – one of the highest quality window frames known on the market. It’s engineered to give you the highest level of comfort. No other window profile comes close to the shelf life of the Aluplast product in Australian conditions, especially in coloured frames. This means, you won’t get discoloration over time with Aluplast versus aluminum.

Why Winplex?



Highly responsive to your needs at all times.



Established, German Engineered Products.



You won’t find better value for money.



Our experts will guides you through every step.



Locally manufactured, AU owned & operated.



As seen on Channel 10’s Healthy Homes.

Grilles and Colonial Bars for Bifold Windows

We offer multiple Grille and Colonial Bar options for bifold windows:

1. Grilles: Winplex’s grilles allows you to enjoy the beauty of finely crafted multi-pane Doors without the expense or upkeep.

2. Colonial Bars: They are also known as glazing bars, sash bars, dividing lites or grid. These bars are installed between two panes of glass. This gives you a grid aesthetic while making casement Doors easier to clean.

Are Bifold Windows easy to open?

Yes they are very easy to open. In fact, they are lightweight and easily open by simply engaging the folding mechanism.

Can Bifold Windows bring in more natural light?

Yes they often bring in more sunlight due its naturally wide design, especially if it’s placed facing East or West.

Do Bifold Windows need a lot of maintenance?

The great thing about Bifold Windows is that they are very easy to clean, even with grilles and louvers. On top of that, while they are durable and made with German hardware, if one panel of your window breaks, you can easily just replace that part instead of replacing the whole window.

Are Bifold Windows versatile in terms of design?

Yes they are very versatile as you can choose different sizes, frame colours, glass colours and styles, as well as custom width for the panels.