ALUMINA BY Pearl Window Systems
This got us thinking – what if there was a way to create a true aluminium door with the same sculptured profile as the Pearl Window Systems window system? What if we could make it the most thermally efficient aluminium bifold out there? And what if we could foil the exterior, so it matched perfectly with uPVC windows?
We did consider multi-material clad hybrid doors – however our feedback showed there are inherent problems with this type of bi-fold. Not only do they require specialist machinery and set-up costs, they can be extremely difficult to fabricate. Furthermore, the warmth of the uPVC is hidden away inside the profile so it’s difficult for consumers to see the benefits of such a system. A true aluminium bi-fold was the answer. With these objectives in mind, the Pearl Window Systems design team embarked on a project to create the first thermally efficient aluminium bi-fold to match a uPVC window system.
The results are clear – Alumina by Pearl Window Systems breaks new ground with superb strength, high security, low U-values, sculptured lines and a ‘warm touch’ exterior. And with it, Pearl Window Systems becomes the first systems company to offer a full suite of fully matching products for any home or building.
DESIGNED BY EXPERTS
Alumina is more energy efficient than other aluminium bifold doors – with U-values as low as 1.2 W/m2K.
Pearl Window Systems were the first to launch a bespoke uPVC bi-folding door system with associated patented hardware and have more than 500 years of industry experience between them – the same team of experts have designed and developed Alumina by Pearl Window Systems. The latest development from this groundbreaking company and team, Alumina heralds the arrival of a new breed of bi-folding doors.
Colour Options


































The colours above are available for windows, doors, patios, bifolds, and Resurgence options, some of them are stocked availability and some are made to order.
Special order foiled on 1 side is 5-6 weeks (dependent on when ordered and when your delivery day is).
Special order on both sides is 7-8 weeks (dependent on when ordered and when your delivery day is).
Please note: Resurgence and astragal bar orders require extra time on top of these production times.
Additional Information
- 10 Years Profile Warranty
- Available from an entry level “C” Rated to an “A+”
Energy rating - Your Bi-Fold Plus benefits from being fitted with the
most robust locking mechanisms on the market - Smooth easy action
- Full colour range
- Hook locking with shootbolts
- Secured by Design Security upgrades available on request
- Minimum size 600mm w x 1850mm h (sash opening sizes)
- Maximum size 1200mm w x 2500mm h (sash opening sizes)