Energy Efficient Design

To make innovative, energy-efficient systems and sustainable designs accessible to Australian residences

Backed by Aluplast

Thermotek is the leading commercial suppliers of uPVC windows and doors in Australia. Since 2012, we have provided sustainable systems for Australian homes. Backed by German engineering and innovation, we manufacture all our products in Melbourne.

Our dedicated, experienced team provides customised service and accessible uPVC pricing to Australians

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Connect with the market driven demand for energy efficient design and construction. Specify Uw 1.0 to 2.3 WERS rated windows and doors.

Why choose Thermotek?


Made in Melbourne

We manufacture our products in our local Melbourne based factory. This allows us to provide a quality product at a competitive price.


AWA member

Thermotek Windows and Doors is a proud member of the Australian Window Association. We adhere to their guidelines.

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Customised solutions

We work with you to customise the most cost-effective energy efficient solution. At no extra cost.
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Environmental Ownership

We made a conscious decision to manufacture uPVC windows. They are a more sustainable option compared to aluminium. UPVC has a lower impact manufacturing process and upvc profiles are 100% recyclable.
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Passive House Certified

Passive houses meet European standards. They apply to buildings with a heating demand that is only 1/10th of average existing buildings.

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Housing Industry Member

The Housing Industry Association acknowledges the contribution of Thermotek Windows for its workmanship.
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Seamless project delivery

We ensure to achieve your project’s objectives throughout. From design consultations, estimations right through to installations and beyond.

Sustainable design


Double glazing is the use of two panes of glass to reduce noise and heat transmission in windows and doors. It is also known as insulated glazing.

In a standard, single-glazed window, heat and noise transfers with ease. This increases heating and cooling costs, not to mention the noise pollution year-round.

With double glazing, we use argon gas to fill the gap between the panes. This creates a dramatic reduction in the transmission of heat and sound.

Experience a more comfortable, quieter home, with lower energy bills. Enjoy the superior performance of double glazing.

Why uPVC?

UPVC, or unplasticised polyvinyl chloride, is the best window and door material today.

Made from salt, uPVC is recyclable up to seven times. without any compromises of material quality. With unparalleled benefits over aluminium and timber, its global importance is increasing.

Designed and formulated with added UV stabilisers. These ensure our uPVC remains stable and robust, even under the harsh Australian sun.

For more information about uPVC products, head to The uPVC Window Alliance. They share information and resources on uPVC windows for architects, designers and home-owners. They help you make informed decisions about which type of window to install.

Passive Design

Passive House is a building standard that is energy efficient, comfortable and affordable.

It is a tried and true construction concept that anyone, anywhere can apply.

Passive House designs and buildings follow these 5 principles:

- Airtightness

- Insulation

- Ventilation

- Glazing

-Thermal bridging

 So the buildings are almost “passive.” Active heating or cooling systems are hardly ever needed.

Why we chose uPVC by Aluplast.

More than 50% of replacement residential windows are uPVC windows, worldwide. Today it’s the gold standard for manufacturing windows and doors. UPVC beats traditional aluminium and timber.

  • Very efficient thermal insulation
  • Very effective sound insulation
  • Maintenance free
  • Superior weather resistance
  • Termite resistant
  • Durable
  • Green and sustainable
  • Fire resistant
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Australian Made to Australian Standards

All our products are high quality and certified to meet with national standards.


Housing Industry Association is the official body of Australia’s home building industry. They promote sustainability via the GreenSmart accreditation.


Thermotek Windows adhere to the Australian Window Association's guidelines for compliant, energy efficiency: AS 2047 AS 1288 AS 4420.


Thermotek Windows & Doors – Up to BAL 40 Bushfire Rating


Windows & Doors are between Uw 1.2 to 1.9 by WERS (Window Energy Rating Scheme) for energy efficiency

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Thermotek Windows – Proud members of the Australian Passive House Association

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Thermotek Windows – Proud Members of the uPVC Windows Alliance

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Thermotek is a proud partner with Aluplast. Access the most updated, innovative uPVC profile systems in the world!

Recent Projects

Step inside and take inspirations of new builds
and latest renovations using our uPVC double
glazed windows and doors.

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Visit us

819 Nepean Highway
Bentleigh, Melbourne
phone call

Call us

1300 663 861

Let us know how we can help.

Get a free quote or have a chat with us for a more sustainable, energy efficient home.