Thermal Double Glazing

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uPVC Double Glazed Doors

How Do Double Glazed Doors Work?

Double-glazed doors feature two panes of glass separated by a narrow space filled with an inert and safe gas, which provides an added layer of insulation. uPVC double glazed doors have an advantage over doors with traditional glass panes as they limit airflow between the two glass panes with a gap that creates the unique insulation benefits of double-glazing, which helps keep your home’s internal temperature at optimum levels.

External Glass Doors

Our wide variety of modern uPVC double-glazed external doors are ideal for use as front, rear, side, and back doors. Featuring toughened glass, a multi-point locking system, and internal beading as a standard on all our double-glazed doors, you can be assured of a high level of security compared to traditional doors.

Swing & Slide Doors

For ultimate flexibility, these state-of-the-art double-glazed sliding doors are the new alternative to bulky bi-fold doors. Featuring unique German engineering, each Swing & Slide door sash can be moved individually for seamless access to your outdoor area. Multi-point locking systems ensure a high level of security while dual seals provide optimal thermal efficiency.

Lift & Slide Doors

Designed for alfresco areas such as balconies and gardens, Lift & Slide doors are double-glazed sliding doors that allow effortless opening and closing. Designed to save space, each door sash slides parallel to the fixed pane of glass, creating a wall of sliding glass. In contrast with traditional bi-fold doors, this allows for more spacious living areas with optimum energy efficiency.

Smart Slide Doors

Featuring a smooth gliding operating and sealing mechanism, Smart Slide double-glazed sliding doors can accommodate extra wide panels for an unobstructed view of the outdoors while ensuring outstanding energy thermal efficiency and security.

Stacker & Sliding Doors

Highly flexible in design, these Stacker and Sliding doors are available in multiple configurations including a single sliding panel, a stacker door with multiple sliding panels, or dual sliding panels opening from the centre. Designed to suit a wide range of uses, this design is ideal to create a beautiful and functional light-filled space.

French Doors

For a classic touch, our double-glazed French doors are perfect for spaces that require wide-opening doors while maintaining the energy efficiency, soundproofing, and enhanced security benefits of double-glazing. Available in an extensive range of colours, styles, and glass types, our French doors are custom-designed to suit your home’s aesthetics and layout.

Why Our Customers Choose Thermal Double Glazing

At Thermal Double Glazing, we specialise in creating sustainable living spaces and comfortable homes. In proud partnership with Aluplast Germany, our Australian-made double glazed windows and double glazed doors feature the latest German innovation and engineering, in compliance with and exceeding Australian standards.
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uPVC Double Glazed Doors – The ideal solution for Melbourne Weather

Before the advent of double glazing, having a glass door was like inviting the outside temperature in. Even when closed, a flimsy piece of glass offers little protection from the climate -and of course it was physically vulnerable too. Advances in glass technology, along with the principle of uPVC double glazing and airtight seals have made it possible to let some more light in without suffering temperature and security issues. Having a uPVC double glazed door in Melbourne is now a win-win situation. A uPVC double glazed door is strong, attractive, improves the ambience of the house and also keeps the temperature stable without draughts whether inside the home or as double glazed front doors.

Double Glazed Doors in Melbourne – Anything Else Just Doesn’t Make Sense

Windows are more sophisticated than doors. You can use a window to let in light, to give yourself a view of what’s outside, to keep out the elements or allow a little ventilation when you need it. But doors are a bit more simple since their main purpose is to let people in.

But what if you took the security aspect of a door and added the windowy qualities? With our double glazed doors Melbourne has the best of both worlds. Our glass and our frames are tough enough to play the minder role, while bringing light into the house and permitting a little breeze if that’s what you want. Double glazing doors are one of the most brilliant recent advances in home technology, and our take on them – exceptional design and technology courtesy of our German partners Aluplast, made in Melbourne and installed by our skilled operators for strength, precision and efficiency – make double-glazed doors Melbourne’s brightest idea.

Check out the Options and Order Online

Ordering our double-glazing doors couldn’t be easier. Just call us, send us an email or fill in the online form and we’ll get back to you. You can discuss sizes, styles and types of glass, and soon you’re on the way to taking your place in the double glazing doors revolution. There are many different styles to choose from including double glazing sliding doors and uPVC french doors. It just makes sense when you think about it, that’s all.

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Here are a few reasons to purchase your uPVC double-glazed doors from Thermal Double Glazing:

Made To Suit Australian Weather

Our uPVC double-glazed doors are formulated with added UV stabilisers to withstand the harsh Australian sun and will not degrade, crack or rust. Due to its high salt content, uPVC does not corrode even in close proximity to the ocean, such as the Mornington Peninsula.

Tailormade Designs

We custom design and manufacture our double-glazed doors in almost any shape and design to suit your home’s architectural style and layout for the perfect fit and aesthetics, including the colour and type of glass.

Extended 10-Year Warranty

To ensure your peace of mind, all our double-glazed products come with a 10-year manufacturer’s warranty, ensuring your investment is protected.


In addition to its low-energy production, uPVC can be recycled up to seven times without affecting the material integrity, making it a highly sustainable material. This means your double-glazed doors are made from recycled but robust material.

Added Security

With toughened glass and a multi-point locking system as a standard feature on our double-glazed doors, you can be assured of security at all times.

Meets & Exceeds Australian Standards

Our products are manufactured locally in compliance with and exceeding Australian building standards, including being certified to BAL-40 (Bushfire Attack Level).
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Glass Options






Super Grey

​Benefits of uPVC Double-Glazed Doors

Excellent energy efficiency all year round.

Our uPVC double-glazed doors will keep your house warm in winter and cool during summer.

Functional yet elegant

Our doors don’t just offer innovative insulation and durability, but also timeless elegance that elevates your home’s aesthetics.

High-level acoustic insulation

Enjoy more peace of mind with built-in soundproofing from double-glazing

Better for your wallet and the environment

It’s what we call a win-win situation: you benefit from lower energy bills while reducing your carbon footprint, which benefits the planet!

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