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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.

What our customers say

Mr H B @ Kingston

I am absolutely thrilled with the finished result. You were straightforward to deal with and visiting your site was appreciated. You gave clear statements regarding specification and developed the product to meet our needs. Installation was at the agreed time and there was reassuring and prompt follow-up as the new design needed refining. The product

S. Harrison

As to how we were from initial contact (were we polite)? Adrian was very passionate about the product and did a good job in promoting it. We were very impressed with the factory visit to see process from start to finish. Always found Adrian very helpful and communicative throughout the process. Arranging installation (were we

The glazing is stunning

The whole experience with FGC has been really positive from the visit to the factory to the final installation. The glazing is stunning.  Highly recommended.

Julie
Julie in Surrey

We are extremely pleased with the doors

The installation of our new doors was eagerly awaited and did not disappoint. The fitters arrived on time on the agreed installation date. All waste was removed and the installation area was left clean and tidy. The fitters demonstrated the use of the system including future self maintenance which was very useful. We are extremely

After sales

Delighted with the windows – they make our kitchen so much lighter and are a joy to use.
Two teething problems since installation have been dealt with promptly and efficiently by FGC at no charge.
Definitely recommend them to all.

John Holland
Johnny

Couldn’t be happier with the product.

Couldn’t be happier.

Jon Roberts

Mr BG

Basically the installation itself was done pretty quickly and efficiently – three guys turned up early in the morning and were done by lunchtime. Polite, tidy. 20150112

Porch Door

we are very pleased with our new porch door which enhances the look of our Victorian house. Very professional job from beginning to end with a great deal of trouble taken to get the measurements exactly right.

Philip N Brown
Phil & deborah

We would recommend Frameless Glass Curtains

We struggled to find a supplier to fit a glass balcony. Frameless Glass however were great – they gave us a clear and competitive quote, turned up when they said they would, and just got on and did the job! Friendly guys, and we love the end result which looks good from the outside, and

marcus appleton
Marcus

Mr & Mrs F @ lower road one house Stowmarket

From the time of our first visit to your premises we felt comfortable with your product. It was a product just as we had hoped and envisaged for our new kitchen extension – double glazed, frameless glass doors to cover a 7.310 meter opening ! Until then we were not sure if it was possible.

Cheerful with a ‘can do’ attitude

FGC fitters Mick and Baz arrived at 0754hr ready to begin work. They were polite, helpful and fitted in seamlessly with the existing project team responsible for the restoration of this significant village property. The boys worked without fuss, cheerful with a ‘can do’ attitude taking the time to explain the system as they fitted

Shindi Poonia
Shindi

Give a wow factor to our house

We recently bought our house with Frameless glass curtains installed and they certainly give a wow factor to our London Victorian cottage – admired by all our visitors – the aftercare service and warranty has been excellent . Many thanks

Jayne Banks
JAYNE