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Ultra Slim Patio Doors Technical Specification

Our ultra-slim patio doors are designed like no other product on the market, promising sophisticated and practical new doors for your extension or property renovation project.

Setting a new standard in design and engineering, these exquisite slide-and-turn doors are meticulously crafted, tested, fitted and guaranteed by FGC. At the same time, they come with impressive specifications and are technically advanced. Tested to the latest security and weather protection standards, our doors promise safety, security and long-term reliability.

The Technical details of Our Ultra Slim Patio Doors

With a resolute commitment to delivering cutting-edge solutions, our ultra slim patio doors use premium-grade insulated aluminium and the best colour-coating technology. Our framing profiles then combine with high-performance glass units.

Security, Sealing, and Weather Resilience

FGC’s ultra-slim patio doors have undergone rigorous testing to meet the stringent PAS24 security standards. This dedication extends to the doors being fully sealed and subjected to comprehensive weather testing, ensuring your living spaces are secure and weather-protected. The following certification supports our testing.

Security Testing to PAS 24

The test report for our patio doors, security tested to PAS 24:2022 standards.

Weather Testing to BS EN 14351

BS EN 14351 is the performance standard for exterior door sets.

Thermal Simulation Reports

The thermal simulation reports show the U-Values of our ultra-slim patio doors, both as a double-glazed product and when enhanced with triple glazing.

More information about FGC Ultra-Slim Patio Doors

The performance specification of our ultra-slim patio doors meets the requirements of both new build, refurbishment and commercial contracts. Contact us today to discuss your project requirements.

We also offer a full range of aluminium windows, bifolding and sliding doors,
and front doors as FGC Bespoke Aluminium.

Visit the FGC Showroom

You can now visit our showroom in Strood, Kent.

The full range of Frameless products are on display in wide variety of configurations.

We request you contact us to make an appointment before visiting to avoid overcrowding.

Find out more about the FGC Kent showroom.

Reviews on Facebook and Google

Excellent4.6 Based on 37 reviews from review us onLisa S.Lisa S. ★★★★★ Very helpful and good communication, great product. Thank you.Dave S.Dave S. ★★★★★ Very happy with doors. Look great. The installation was quick and straightforward.Will recommendRH K.RH K. ★★★★★ FGC were brilliant. Great advice on the best windows to get. Extremely good installation. Always ready to solve any installation or manufacturing issues. We are extremely happy with the end result!Joy W.Joy W. ★★★★★ Frameless windows were brilliant, Liam Alfie and James were great, polite, courteous, and left the site clean and tidy. The windows look amazing, Great service from start to finish. Many ThanksRayRay ★★★★★ We love these doors and look forward to having them open a bit more once the patio has ben completed. They really have a "wow" factor and this becomes a double "wow" when people are shown how the corner can be completely opened up. It was about a year from my first enquiry to the doors being installed as there was a considerable amount of building work required to prepare the room. throughout this period I remained in touch with FGC and the service was exceptional. The installation team was on site for a day, starting early and working through to completion before driving back to Kent!! We have been really pleased with the standard of workmanship and even had compliments from other tradesmen working on the room (most of whom had never seen doors like this). These are expensive doors but the price difference from a normal set of bi-folds was well worth it for the uninterrupted view you get. The doors were installed in February but I have held off doing the review until the room was more finished so I could post a more representative picture. Once the patio is done the look will be even better than we originally envisaged. I have attached a few pictures of the room (the white table is only a temporary measure while we wait for the new coffee table).Sharon B.Sharon B. ★★★★★ From first contact to installation, my interactions with FGC have been easy, fast and professional. The end product is superb, we are so happy with our new doors - wish we had done this years ago. Well done FGC!!Jayne N.Jayne N. ★★★★★ This is the second time we have installed FGC and we are very happy with our second installation- very sleek and stylish and all staff very helpful, thanksD JD J ★★★★★ Frameless Glass Curtains have few competitors so they could take a lax approach to their work. However, that is not the case. We have had a porch installed in a space that was not square or aligned. The service from survey to finish has been above standard. Barry’s attention to detail and determination that the work would not be complete until his high standards were met was much appreciated. The communication from the admin side was clear and helpful. So all in all we will be using Frameless Glass again and have no hesitation in recommending them.Brian S.Brian S. ★★★★★ Brilliant product, what a difference, no frames to block our view of the Brecon Beacons. The service has been the best I think I have ever received and the fitting team were faultless - they travelled 5 hours to get to us in Wales, arriving 30 minutes early, working flat out without a break for 9 hours before driving 5 hours back, all without one complaint!!Catherine U.Catherine U. ★★★★★ Ordered Crittal-style French doors in aluminium. The doors look fantastic and are so much better than the ancient sliding doors I had before. The company were very friendly and easy to deal with. They were understanding of my delays due to a flood. The installers were professional and polite and poor things had to work on the hottest day of the year. Would definitely recommend FGC.Laura G.Laura G. ★★★★★ Really great service from this family run company. We love the doors and the install was top notch. Thanks!Info Oad S.Info Oad S. ★★★★★ Great service and amazing finish! Would highly recommend!paul R.paul R. ★★★★★ Highly competent office and site staff, great product and at a fair price. Couldn't be happier with the entire experience and end result.vanessa C.vanessa C. ★★★★★ From the beginning to the end, everyone at FGC have been amazing. I knew straight away that the glazing FGC would provide and install would be spectacular and how right that was! The FGC glazing allows our Edwardian stained glass door to still be a main feature and in fact it shows it off perfectly. We are so happy with the end result and can’t praise FGC highly enough, somehow 5 stars doesn’t seem to be high enough.ZorèZorè ★★★★★ Their windows are second to none. No other company in Germany, UK or anywhere else can produce such a fabulous product.Any issues that has come up, they always come & fix it. The staff are so nice and polite. For a small company they do really a great job over all. The main things are the frameless bifolds that you hardly have any frame in the line of vision and there is a 5 years guarantee. Mr & Mrs JahediFiona G.Fiona G. ★★★★★ Delighted with our new frameless glass doors. Had lots of lovely comments, even all the trades who have been working on our house have said they've not seen anything like them. Great having something a little unusual. The quality of the doors is of a very high standard. The service from FGC has been very good too, from ordering through to installation. All went very smoothly with no problems. Paid a bit more than regular bifolds, but worth every penny. Best decision, no regrets at all.Andrew H.Andrew H. ★★★★★ Great service and very welcoming for my father and I. Adrian in particular was very efficient, gave great pertinent advice and guidance on my future purchase!Des P.Des P. ★★★★★ Excellent in all aspects from initial viewing in showroom to actual installation.TonyTony ★★★★★ Excellent service and product from FGC.I have a glass-box conservatory, built with structural glass about 20 years ago. The 2 sliding doors needed replacing, along with 2 side panels, and I contacted dozens of companies selling conservatory doors and none of them were prepared to install their doors because of the perceived risks of working with structural glass.Then I found FGC who, with no fuss at all, carried out a survey, provided a very reasonable quote for the doors/panels and then installed the doors/panels on the agreed date.Communication with the FGC office was always quick and easy. The surveyor and installation team were efficient and courteous. The product works beautifully.We can now use our conservatory again. Thanks FGC.Arun S.Arun S. ★★★★★ Great company with excellent, friendly and responsive service, the guys were helpful and efficient with the installation and the slide and turn doors are a fantastic product.Matt G.Matt G. ★★★★★ Fantastic service from start to finish, from the surveying, contact with office to the workmen. I have experience through work of a number of companies providing similar products and these guys have been by far the best to deal withDavid W H.David W H. ★★★★★ FGC installed a two-panel frameless glass door at our property yesterday. Wow!! the installation is exactly as discussed, and was carried out by two of FGC's team members who were so professional and courteous. They were excellent, and we have no hesitation in recommending FGC and their team to anyone considering such an installation.We are delighted with the installation, and very pleased we chose FGC.Well done FGC!!Border S.Border S. ★★★★★ The quality of the windows / doors are second to none.The customer service was first class from placing the order to installation we were kept informed at every step.The installation team led by Richard left our house and patio cleaner than when they arrivedI would recommend FGC 100%Tony- BurnleyStephen H.Stephen H. ★★★★★ From start to finish everything was excellent.Fab u lasThank youStephen O.Stephen O. ★★★★★ BRILLIANT SERVICE FROM START TO FINISHHighly recommended.Nathan P.Nathan P. ★★★★★ We purchased a beautiful Origin sliding door and side window from FGC. FGC installed the sliding door and window on time, however the sliding door did not fit correctly. Issues can happen. FGC made the process of re-surveying and re-installation very simple. FGC is a very pleasant and professional company to deal with. We are very happy with their service and would strongly recommend them.Darius C.Darius C. ★★★★★ I love my doors! It’s transformed my place. The people are great, no nonsense, organised and efficient. I’d recommend them to anyoneAdrian W.Adrian W. ★★★★★ Excellent planning and product advice. All the staff were polite courteous and friendly.On the day of the installation, the team arrived bang on time -we live in Wales so a long drive from Kent! They had the job done by lunchtime (fitting a sliding patio door) and I have to say that on first impression of the unit, it looks and feels like solid quality.Ian J.Ian J. ★★★★★ We had a 5m stretch of these wonderful doors installed several years ago and have been very happy with the uninterrupted view of the garden that they allow from the living room. They are admired by every tradesman who sees them. A minor problem we experienced with water ingress last year was promptly and effectively resolved, and the doors were serviced for free at the same time.Response from the ownerHello Ian, thank you very much for leaving us a review and glad you're happy with your doors and our service. Elly BElly B ★★★★★ Great staff and great products! Have visited the showroom to view doors, really loved all of them! Have referred to a friend - Can't recommend enoughAdam F.Adam F. ★★★★★ Really great doors. Really are something different. Expensive, but you really pay for what you get here.js_loader

What our customers say

We are both delighted with the FGC product and have no issues with any future viewings. From our perspective the “outside has truly come inside”, we use the decking on a daily basis as the FGC curtains have transformed the house which I think adds a significant value to the property. The only trouble now is that when we see home improvement programs such as Grand Designs where they suggest using bi-fold doors we end

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 on time and on schedule) All arrived on time.  Were we clean and tidy? Yes

As it happens, we are still sadly not in the house. We should be however at the end of February which will be great! I can however pretty much respond to the below as I have been able to test the doors. 1. Your performance was excellent from what has been reported by the builders. They mentioned that you were happy to leave you to complete the work and had no problems. They did unfortunately

I like to confirm that the performance on site was excellent and the lads where very polite and helpful. The doors look great, all we have to do is to undertake all the finishes around the framework.

As to how we were from initial contact (were we polite)? Extremely polite & very helpful. Arranging installation (were we on time and on schedule) Excellent, on time & schedule. Were we clean and tidy? Yes. And finally are you pleased with our doors (would you Recommend us)? My next design & build project I will definitely recommend & use you guys. May I also ask if you would like to be on our list

After visiting a NT stately home which had a glass porch entry I asked fgc to see if they could do one for us. I had the vestiges of a porch with brick sides but no front. The installation made the entrance a feature which is declared up market and interesting. It is a halfway point for exotic plants, deliveries and keeps draughts out. Modern but understated. The support team is good and responds fast.

Professor Eaton
Professor

We’ve FGC doors installed in our rear extension and they really are the highlight of the whole development. The support from the FGC guys has been friendly and really responsive – Brilliant service all

Jack Richens
Jack Oxford

We are absolutely delighted with our frameless glass doors. They have transformed our living area in terms of light and space, giving a contemporary feel. The whole process has been very efficient and the fitters who came to install the doors were excellent. I would definitely

Angie Barker
Angie
Thanks you for everything FGC did on this project for us.  We found you from an on-line search which doesn’t always identify helpful or committed suppliers, especially where the requirement is small or simple as this one was..  FGC were both helpful and committed.  Thank you especially for progressing things much quicker that the weeks you first quoted to meet our programme.   Paul and his colleague (sorry didn’t get his name), where very good

Thank you for a good job even though there were a few issues along the way. Chris and I will have no hesitation in recommending your company, products and services to others. Kind regards Mike and Chris Rodwell

I am really impressed with the finished product and service e provided by FGC. I had an image in my mind of how I wanted the end result to look. The “invisible” glassing was the most difficult and important part to source. FGC came through with flying colours, right from the initial contact, design and survey discussions, to the installation visits. FGC have been superb at meeting my requirements and timescales. The fitting was carried

David, Surrey
as an Architectural Technologists, I stumbled across FGC and its proved to be my best stumble. I have knocked two rooms into one to make the most of viewing my garden, my wife and I were looking for the most unobtrusive bi fold door frame to maximise the view, which was proving a challenge until I found the frameless glass bi fold doors by FGC FGC system is going to change our home and garden,

Anthony Mackin
Anthony

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