Energy Efficient Design

Our mission is to make innovative energy efficient systems
and sustainable designs accessible to the Australian residential market.

Backed by Aluplast

Backed by German engineering & innovation, we have been making sustainable systems accessible to Australian projects and homes since 2012.

Thermotek is the leading professional commercial suppliers of uPVC windows and doors in Australia. All of our innovative products are manufactured in Melbourne and ship nationally.

Our experienced team is committed to providing Australians with customised service for their builds and enabling accessible uPVC pricing.

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Connect with the market driven demand for energy efficient design and construction by specifying 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 and abides by their guidelines.

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Customised solutions

We work closely with you to customise the most cost-effective energy efficient solution for your project. At no extra cost.

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Environmental Ownership

We made a conscious decision to manufacture uPVC windows, the more environmentally friendly 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 are European standards which apply to buildings with a heating demand that is just 1/10th of average existing buildings.

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Housing Industry Member

The Housing Industry Association acknowledges the contribution of Thermotek Windows and Doors for its workmanship.

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Seamless project delivery

We ensure a project’s objectives are achieved throughout; from design consultations, estimations right through to installations and beyond.

Sustainable design


Also known as insulated glazing, double glazing is the use of two panes of glass to reduce noise and heat transmission in windows and doors.

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

With double glazing, we use argon to fill the gap between the panes, dramatically reducing transmission of heat and sound.

The superior performance of double glazing provides a more comfortable and quieter home with lower energy bills.

Why uPVC?

Primarily made from salt, uPVC or unplasticised polyvinyl chloride is the best window and door material today.

uPVC can be recycled up to seven times without any compromises in terms of material quality. Due to its unparalleled benefits over aluminium and timber, its global importance is increasing.

Our uPVC is specially designed and formulated with added UV stabilisers to ensure that our products remain stable and robust even under the harsh Australian sun.
For more information about uPVC products head to The uPVC Windows Alliance, an initiative that aims to share information and resources on uPVC windows so that architects, designers and home-owners can make fully-informed decisions about which type of window to install.

Passive Design

Passive House is a building standard that is truly energy efficient, comfortable and affordable at the same time.

It is a tried and true construction concept that can be applied by anyone, anywhere.

A Passive House building is designed and built following these 5 principles:
- Airtightness
- Insulation
- Ventilation
- Glazing
- Thermal bridging

The buildings are almost “passive” as they require hardly any active heating or cooling systems.

Why we chose uPVC by Aluplast.

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

  • Highly efficient thermal insulation
  • Highly effective sound insulation
  • Maintenance free
  • Superior weather resistance
  • Termite resistant
  • Durable
  • Environmentally-friendly
  • Fire resistant
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Australian Made to Australian Standards

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


Housing Industry Association (HIA) is the official body of Australia’s home building industry promoting sustainability via GreenSmart Accreditation


Thermotek Windows & Doors adhere to the Australian Window Associations guidelines relating to endorsement of compliant, energy efficient, quality products to AS 2047 AS 1288 AS 4420


Thermotek Windows & Doors – Up to BAL 40 Bushfire Rating


Windows & Doors are rated 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, giving us access to the most updated and 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.