uPVC Double Glazed Casement 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

German Design, local custom install & manufacture

Provides excellent airflow. Offers a large opening for ventilation.

Boosts energy efficiency to help save on energy bills.

Provides better views compared to other window types.
Choice of either winding or pop out.
Grilles and Colonial Bars are available.

Casement Windows Melbourne

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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

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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

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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


Casement Windows

Winplex Double Glazing installs across Melbourne and Mornington Peninsula to your specific requirements
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Casement windows are versatile in terms of style, placement, and openings. You can open only certain or all panes. Open them partially or fully.

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Better Views

Casement windows tend to be wider and can give you a panoramic view, as well as let in more sunlight.

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Allows for greater ventilation due to larger openings. You can open the window panes all the way to let in breeze or let out heat.

Why uPVC Double Glazing?

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Keep your home warmer in winters and cooler in summer.

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Toughened / laminate up to 8mm which is unbreakable

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

Casement Windows vs Awning Windows

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casement windows, bay windows, bow windows

Awning windows tend to have a limited opening, whereas a casement window could open all the way like a door. For this reason, casement windows allow for better ventilation than awning windows. Having the ability to open the casement window fully also allows for easy access. For instance, if you have a planter or flower holder outside of your window sill, simply open your casement window to water and enjoy your lovely florals.

Winplex windows comes with a winding functionality to make it easy to wind in and out rather than having to reach out to close the window. At the end of the day, it really comes down to your own personal preference. While both are good options, we actually recommend considering the Tilt and Turn windows which are superior in security and flexibility. 

Casement Windows vs Sliding Windows

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casement windows, bay windows, bow windows
Unlike casement windows, sliding windows tend to have larger openings, which could cause too much breeze to come into the house. Additionally, sliding windows can get dirt in crevices that affect the sliding mechanism.
These parts of the sliding window can be difficult to clean as well. Another issue with sliding windows is that grease could dry out causing it to be harder to slide.

Personal service, quality product and competitive prices

Window Sizes

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


Perfect for bathrooms and small bedrooms


Great for kitchens. Simply open the casement window to air out food odor or smoke.


Best for larger spaces where you want more ventilation and sunlight, such as the living room, home office, and the master bedroom.

Double Glazing Melbourne

Our casement windows are one of the most popular options for its simple, yet versatile design.

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?

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Highly responsive to your needs at all times.

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Established, German Engineered Products.

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You won’t find better value for money.

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Our experts will guides you through every step.

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Locally manufactured, AU owned & operated.

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As seen on Channel 10’s Healthy Homes.

Casement Windows Melbourne Projects


We offer 2 options for fly-screens. asshown below:


The espag awning has a simple mechanism with just the turn of a handle and the window opens outwards. This hardware is imported from Germany and requires Retractable Fly-Screens. This will be required to be fitted after the installation is completed and is not something that we include.


The truth hardware set is an American winding system that winds out from the bottom. It includes 2 Lock-in Points on either side and can have Fixed Fly-Screens fitted prior to installation.


How can casement windows improve ventilation?

They offer better airflow compared to other window types due to its size and large opening.

Can casement windows bring in more natural light?

They generally to bring in more sunlight, especially if you choose a large casement window.

Do casement windows need a lot of maintenance?

The great thing about casement windows is that they are very easy to clean, even with grilles and Colonial bars. The simple mechanism also reduces the risk of failing or breaking.

Will casement windows reduce my air-conditioning costs?

One of the main benefits of casement windows is that they are energy efficient. They provide supreme ventilation whilst allowing humidity or steam to escape.

What makes casement windows safe?

Casement windows are one of the safest on the market for windows that open wide. They are extremely difficult to break into from the outside due to the secure locking system. Grilles and bars will make them even safer.