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Our showpiece double glazed exterior frameless doors  come with expert-craftsmanship, engineering and the highest performance. We explain some of the technical characteristics of our doors.  This page is ideal if you want more information about profile sizes, glass and general performance.

If your project also involves an architect or builder, they may also find this section useful to understand the relationship between the doors and the building structure.

double glazed doors

Thermally Broken Frameless Double Glazed Doors

First of all, we are proud of the European Patent of our doors. (Patent Granted EP 2 456 942 B1 and covers all of Europe and the UK for our innovative glazing method, America and Australia.)

Furthermore, our premium grade aluminium extrusions with a durable powder coated finish offer you the best in contemporary sightlines but they also some with technical characteristics designed for security, weather performance and long-term reliability.

Technical Specification

Specification of Bottom Track – (76mm x 58mm) 13mm gap which is thermally broken.

Specification of Top Track – (44mm x 61mm) Thermally broken and 4 x Weather Seals.

NEW & IMPROVED Profile Size – (70mm x 80mm) Inserts – 4 x Weather Seals.

Side Columns – 70mm x 58mm Deep with 4 x Weather Sealed Strips.

Glass – Standard Unit manufactured with 4mm/6mm Planitherm 4s soft coat and 4mm/6mm Toughened low iron. The toughened glass spacer which is 20mm x 12mm/15mm/18mm.  Glass is bevelled between the long edges of glass. Top and bottom have 2 rows of aluminium 20mm spacer bars filled with desiccant. Profiles are compressed onto glass and fixed with a polymer. The Glass U-Value is 1.0Wm2K with an overall U-Value including the frame of 1.4Wm2K

NEW & IMPROVED Bubble Gaskets – Available in grey

Head Deflection – 12mm Incorporated in Design Specification

Worldwide Patents – Applied for, granted and pending.

Design Specification

Our unique extrusions, side columns, tracks and profiles are all manufactured in the UK, as are our Frameless Doors. All units are manufactured to comply with BS6375 Part 1 2004.

The profiles on doors are connected to the tracks by means of a flag, including spacers which slide inside along the tracks. The tracks contain turning mechanisms which automatically tell us where the doors are to open. Doors can only be opened at gates, which are 13mm by 5mm, which makes them compliant to PAS24. The side columns expand by turning an internal handle, which in turn pushes the doors together to provide a weatherproof seal (wind and rain) BS6375 Part 1 2009.

How our doors work.

All doors slide on our purpose designed wheel system so the majority of the weight is at the bottom. Therefore, no additional reinforcing is required at the point of installation. Once the main working door is opened, the remaining doors then slide, stack and fold in the same location. As all doors are slim-line (45mm), they only take up a small amount of space. Our Frameless Doors can be stacked to either one or both sides of the opening, or a combination of the two. They can be opened inwards or outwards.

The door locking mechanism can only be accessed from the inside and uses a key situated within the handle for security purposes. There is no locking mechanism on the outside. When opening the main door, just turn the key and handle – the door will automatically spring back to allow you to open and close the door.

The framework is produced from powder-coated aluminium, manufactured in the UK and can be supplied in any RAL colour you specify.

Contact us for more information on our double glazed frameless doors.

FINANCE OPTIONS AVAILABLE

What our customers say

Chartered Building Surveyor I was impressed with the installers

I would like to reiterate that we are very pleased with our new FGC doors. As a Chartered Building Surveyor I was impressed with the installers who were careful, methodical and very professional my wife who is most particular was also very impressed with their cleanliness. I am sure we will get many years of

Minor Problem Addressed

A strip of the furry trim at the top of the frame that the doors run on had come loose. On the one hand the sort of thing that one could have a go at fixing; on the other hand having witnessed the care and attention the FGC installation team do their work; I thought

Shindi Poonia
Shindi

Mr H @ Baldock

The service I received from FGD was professional and prompt from the initial on site survey through to installation and completion. Added to this the finished product has exceeded my expectations. It has enhanced my home with style and individuality, and enabled me to make use of the space in a way that is ‘unique’.

A great installation

“Thank you again for a great installation, we are really enjoying the extra light.” I will be sending a load more images your way at some point today.

Mr T – Woking

Mrs L

It’s nearly a year since you installed our glass curtains. They have been really great, exceeding our expectations, particularly during the winter months when they were absolutely draught free. When they are fully open you really feel that the lounge is part of the garden, it all becomes one space. Many thanks, they were one

the amazing glass door from FGC

The amazing glass door has transformed our kitchen and given it a wonderful inside/outside living feel and flooded the room with sunlight. It’s a fantastic product. The whole team at FGC were superb.

Gerry Geddes
Gerry

Excellent product and great service

I am delighted to have found FGC online! I installed their glass curtain between my office and the kitchen/living room area. It looks fabulous! Easy to use and can be locked.
I visited the factory and it looks smart and professional. All communication has been fast and also very professional. Will definitely use again!

Lilia Severina
Lilia

Fantastic service

Great all-round service. From measuring, communication to installation.
Not a speck of dirt left in our shop (we are a retail space). Installed in no time at all, staff were very polite and friendly.
Very pleased. Finished door looks amazing.

A Springer
Pearspring

A big thank you

Hi Sara Just to day a big thank you for relating the doors the guys did a great job I had to leave them to it as I was in London Regards Melissa

Mellissa

A Unique and Stylish System

There is no comparison between the usual bifold door products and the products provided by FGC. We visited FGC to see the manufacturing process and view their unique system. We were hooked, after a simple ordering process and site visit our 2 sets of replacement doors were fitted quickly and in a very professional manner.

Philip Hills
Phil - Kent

Mr A – Leavesden

With regards to feedback, the pre-sales advice and support from Adrian was excellent and we found it really valuable to visit the factory and see the demonstration doors. Furthermore, the installers were very professional, on time, polite, tidy, hard working and went out of their way to ensure we were comfortable operating the doors before

Glass Curtains

Had to call FGC to come and undertake first maintenance visit of 5m curtain installation from 2013. Excellent friendly service and all seals repaired within an hour. Learnt need to silicone spray the seals as well as the floor track. Been a great purchase and very pleased.

simon ellis
Simon E

COVID-19 Update November 2020

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