Four great showrooms: Alexandria, Castle Hill, Minto, and Mulgrave - as well as a warehouse in Prestons. We specialise in supplying directly to the public and offer standard size windows and doors as a cost saving alternative for aluminium sliding doors, stacking doors, sliding windows, awning windows and double hung windows.
With four sizeable showrooms, in Alexandria, Castle Hill, Mulgrave and Minto, we have a wide range of aluminium windows and doors on display. We also have a window and door warehouse in Prestons with over a 1000 aluminium sliding windows and doors in stock, available in 4 colours. Our aluminium Capral (Urban) door and window range includes aluminium sliding doors, stacking doors, awning windows, and sliding windows.
With four sizeable showrooms, in Alexandria, Castle Hill, Mulgrave and Minto, we have a wide range of aluminium windows and doors on display. We also have a window and door warehouse in Prestons with over a 1000 aluminium sliding windows and doors in stock, available in 4 colours. Our aluminium Capral (Urban) door and window range includes aluminium sliding doors, stacking doors, awning windows, and sliding windows.
Services
This will ensure a more efficient turn around of processing your request as it includes all necessary information to start the process. We may require additional information at a later stage, which we will communicate directly. Most site service bookings and site glazing requests have a 2 to 3 week lead time depending on current work load, if replacement material is required and other factors.
Check out our aluminium door prices. You can now save on a wider range of aluminium doors. Whether you are after a new sliding or stacker door, set of French (or single panel) or bifold doors, using standard sizes is the best way to save money.
Speak to your builder or installer to see if they could use one of the standard size doors instead of a custom sized one, as custom sizes are more expensive to manufacture and therefore will have a higher price tag.The main difference between the standard residential and commercial windows and doors that we offer, is the frame and sash sizes.
Speak to your builder or installer to see if they could use one of the standard size doors instead of a custom sized one, as custom sizes are more expensive to manufacture and therefore will have a higher price tag.The main difference between the standard residential and commercial windows and doors that we offer, is the frame and sash sizes.
Made to order Aluminium sliding and stacking doors in standard sizes offer a great saving as they are more cost effective to manufacture due to the standard cuts, metal extrusion lengths and minimised wastage of material and labour. We can also offer custom sizes to suit your openings and requirements.
Did you know that we don't just make windows and doors to order? We hold a variety of sliding windows and doors in stock at the GEM Windows & Doors Warehouse located in Prestons NSW. Off the shelf aluminium sliding windows, sliding doors and stacking doors are available for purchase through one of our showrooms and can be arranged for delivery or picked up free of charge from the warehouse.
Our S100 Residential Grade doors offer a cost effective option when it comes to aluminium sliding, stacker and hinged doors. All our residential aluminium doors come in sliding, stacker and hinged and are available in a wide range of standard sizes and configurations.
Standard size residential aluminium doors traditionally provide the best cost saving opportunity as manufacturing of these items is more efficient and waste is dramatically reduced, which allows GEM Windows and Doors to pass on the cost benefit to the client.Custom sized residential aluminium doors are also available and are quoted to meet your specific requirements.
Standard size residential aluminium doors traditionally provide the best cost saving opportunity as manufacturing of these items is more efficient and waste is dramatically reduced, which allows GEM Windows and Doors to pass on the cost benefit to the client.Custom sized residential aluminium doors are also available and are quoted to meet your specific requirements.
Reviews (6)
Lorraine D'Sa
Jan 26, 2022
Report
Through our contractor, we had trusted that the appropriate door and window vendor would be selected and it was determined that Gem Windows would be supplying this for our project. While completely understandable that Covid would greatly impact our project, we were patient and waited several months for our doors and window to arrive. When it came time to addressing deficiencies however, I was incredibly disappointed with their quality and level of service. I have had at least 13 emails back and forth with their service team, and while pleasant via email communication, they lack any responsiveness
Ze Jo
Aug 10, 2020
Report
Thank you all for a great job that you have done for us. Paul was very friendly and responsive. He introduced us to wonderful Nanawall windows that they offer. Lily was guiding us gently through the process. Installers, Joe and his colleague were friendly, precise, positive, on time…
We are more than happy with the outcome, visually and how functional, practical those windows are. It was worth every $$ and yes a bit of extended waiting time. We will be more than happy to recommend you to anyone who would have similar needs as us.
We are more than happy with the outcome, visually and how functional, practical those windows are. It was worth every $$ and yes a bit of extended waiting time. We will be more than happy to recommend you to anyone who would have similar needs as us.
Sam Mckee
Dec 29, 2019
Report
Mike N.
Oct 26, 2019
Report
I was in the middle of my home renovation, and the next step was replacing my old windows. I wanted to get fiberglass windows and needed the right company for the job. I got on the phone with Gem Windows. We settled for the wood grain look, and their team came quickly after. The whole job was a bit messy, but they cleaned everything up after finishing the installation. Very happy with the overall experience.
Bruce Boonstra
Oct 22, 2019
Report
This firm had done significant work at our home, full window replacement, cladding our wood siding with vinyl, and a great custom piece for the solarium we inherited - we were very happy with their work.
Now, we need service to replace a cracked window and several skylight portions where the seals have gone. I have been trying to get this done since the end of last year! I was patient when they could tell be they couldn't get to it for a period but now they won't even return phone calls.
Now, we need service to replace a cracked window and several skylight portions where the seals have gone. I have been trying to get this done since the end of last year! I was patient when they could tell be they couldn't get to it for a period but now they won't even return phone calls.
Ali Assad
Jun 08, 2019
Report
I ordered exterior doors and paid the full amount in advance. The doors arrived two weeks late and with a wrong color grid. I was told that the glass would be replaced but that it was best to go ahead and install the doors as is. I followed the instruction, and almost SIX weeks later, I followed up on my order and was told that the glass was ready, so they were just waiting for delivery. During the following THREE weeks I was on the phone and going to the store, back and forth, trying to get my doors finally delivered. During my last trip to the store, the glass was already sitting in their truck
