thermal break sliding windows

Energy Ratings


Bradnam’s Windows & Doors products are independently rated by the Window Energy Rating Scheme (WERS).


To view energy ratings for our windows and doors click on one of the links below.

Residential Energy Ratings

Commercial Energy Ratings

They are specific ratings of glass and frame combinations that have been independently simulated and then passed through an audit process by WERS for independent companies.


The Window Energy Rating Scheme rates the whole of window or door energy efficiency performance.

WERS enables windows and doors to be rated and labelled for their annual energy impact on a whole house, in any climate of Australia.

To participate in WERS, energy ratings must be obtained by manufacturers for their products from a rating organisation that is accredited by the Australian Fenestration Ratings Council (AFRC).


Windows and doors rated for energy efficiency display the WERS logo.

Each rated product comes with a certificate that certifies its energy rating. As the demand for energy-rated products increases, ensuring that you are purchasing compliant products becomes especially important.

Australia is a vast country with varying climates, making it challenging to choose the right windows. To help with this, the Australian Glass and Window Association has produced guidelines for choosing compliant windows.

We’re Ready for 7-Star Housing

In Australia, it is mandatory for new homes to comply with the National Housing Energy Rating Scheme (NatHERS) 7 Star standards to achieve maximum energy efficiency. In order to meet these standards, it is not enough to just have good insulation. Every building material used must be optimized for excellent thermal performance, including windows and doors.

We are fully committed to assisting our clients to achieve a 7-star rating for their homes.

Secure Your 7-Star Ratings

Three Black Fixed Windows

Product availability, pricing, features, options, sizes, configurations and performance are subject to regional variations, design requirements, and building codes. Bradnam’s Windows & Doors reserves the right to change, alter or delete any aspect of our products without notice.