Energy Efficiency

DID YOU KNOW?

“In testing, based on an average house containing 8% area of glazing in the entire building fabric (windows, walls, floor and roof), as much as 49% of the heat lost during winter and as much as 87% of the heat gained during summer can come from the windows.”

                    from www.efficientglazing.net

We are now, more than ever, conscious of the need to save energy within our homes. Windows have a major impact on the energy efficiency of your home, with up to 40% of a home’s energy for cooling or heating being lost or gained through windows.

Improving your aluminium windows and doors’ thermal performance and energy efficiency reduces your home’s energy costs. This can be done by selecting the right frame and glass for the position of the window. For maximum performance, the ThermalHEART range of windows and doors is a market leading

To help you out with this selection process, all of our aluminium window and door systems are rated by the Window Energy Rating Scheme (WERS). This functions very similarly to the ratings you see on whitegoods and is the standard by which thermal efficiency is measured in Australian windows and doors.

For any further help or specification assistance, call us or pop into our showroom!

WERS - A Simple Guide to Sustainable Windows

WERS - A Simple Guide to Sustainable Windows

Helpful information for Northern NSW Climate Zone

Open Document
ThermalHEART Brochure

ThermalHEART Brochure

For more information on energy efficiency in windows and doors, read up on the ThermalHEART range!

View Brochure

Vantage Energy

Information on Australia’s largest range of high performance and thermally broken aluminium windows and doors.

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4.6
Based on 13 reviews
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Mark Hird profile pictureMark Hird
20:01 02 Dec 25
The workers were very accomodating and worked hard.
There were a couple of hiccups with the product not fitting properly and they managed to make alterations to rectify this.
However one of the sliding doors is not closing properly.
Unfortunately I don’t use Google videos. I will send separate email with video.
Response from the owner 22:32 03 Dec 25
Hi Mark, thanks the review and notes. We are on it and will fix up that issue for you ASAP! We are proud that our guys always work hard to rectify any issues that can pop up and leave you with the best possible outcome!
Lee Brown profile pictureLee Brown
21:55 23 Nov 25
Have always used the services of Big River Glass, very professional and high quality product and service, the friendly staff are always accommodating.
David & Lee Brown
Response from the owner 05:04 02 Dec 25
Thanks for the appreciation, guys. Always a pleasure to deal with you 2 also! Long may it continue...
Rachael Whyte profile pictureRachael Whyte
02:47 21 Nov 25
Clarence Custom Builders has had a long association with the team at Big River Glass, and they have consistently provided quality service and products. We highly recommend anyone in the Clarence Valley experience the BRG team for all your glass and window needs.
Response from the owner 21:33 23 Nov 25
Thanks Rachael, we love working with you and the team at Clarence Custom Builders. So easy to deal with and admire your customer-first attitude as well as your quality and classy builds in the Valley!
Nikki Voss profile pictureNikki Voss
03:23 20 Nov 25
So very impressed with BRG, in the first instance, your wonderful office manager Steph, so pleasant, so lovely and kept in touch to squeeze in a booking for what wasn't a huge job, but she persisted anyway. And secondly to the great fellows Trent and Dom who were clever in their solution, funny and just great blokes. Thank you so much for saving our summer by fixing our broken window. Five star service. Local employer, who really cares about the jobs big or small, and also bothers to serve us in the rural and remote parts of the North Coast.
Response from the owner 00:25 21 Nov 25
You are welcome, Nikki! We love to hear the feedback and love to do our best for all around the Clarence Valley & beyond! Team BRG
Don Hamilton profile pictureDon Hamilton
20:25 17 Oct 25
We are very happy with the product and the way your work men applied them selves. A high standard that we would use again.
Response from the owner 20:48 19 Oct 25
Love to hear it, Don! We will pass it on to the Noah and the guys that did the installation and yes our Invisigard Security Screens are a superb product! Thanks again.Team BRG.
Mike Koolen profile pictureMike Koolen
04:49 12 Feb 21
Could not fault BRG for there wonderful service. Our beach house in Wooli needed a new front door handle and lock as it went (kaput) on Friday at around 10:30am. I phoned Graham at BRG who said it was possible but on a Friday and knowing that the team knocks off at 2pm we could be struugling. Well hey presto, we (they) went to all stops and had the job done and dusted with time to spare, well done guys, you have one (1) very happy customer!
Photo from customer reviewPhoto from customer reviewPhoto from customer review
Response from the owner 06:50 12 Feb 21
Glad we could help Mike! 👍
Rich Almond profile pictureRich Almond
22:53 08 Nov 20
Wonderful product , great service. Paul did our measure and quote and was punctual professional and a gentleman. Mick did our install and was awesome, clean and tidy left no mess . Very please with the whole BRG team.
Richard Almond Yamba
Response from the owner 21:31 09 Nov 20
Always good to hear Richard. 👍 I’ll pass on your message to the team. Thank you.
Alison Renwick profile pictureAlison Renwick
22:21 19 Aug 20
Great selection of quality products backed up by many years of knowledge and experience. Made to measure and locally manufactured products, made specifically for Australian conditions and flexible if you require a specific systems for a specific solution.
Response from the owner 22:44 17 Jan 24
Thank you for the 5 star review!- Big River Glass
Jeremy O’Hara profile pictureJeremy O’Hara
05:36 06 Nov 19
Thanks BRG for your great sliding doors and excellent service. V Happy!
Response from the owner 08:37 06 Nov 19
Great to hear Jeremy!