Our bespoke bi-folding doors are custom made to the highest standards and designed to withstand the worst that mother nature can throw at them.
Manufactured from slim-line, thermally efficient aluminium profile (which is strong yet lightweight in construction) and fitted with stainless steel quad rollers – our bi-folds are simple and effortless to operate. Powder coated aluminium is also much less vulnerable to climatic variations which can cause timber or PVCU bi-folding doors to expand and contract – often rendering them inoperable.
We can specify odd or even number configurations without an external handle. This keeps external frame and glass lines clean and continuous as well as improving weather protection.
Our Bi-Folding doors can be manufactured with up to 7 panels folding and sliding to the left or right – providing you with a breath-taking, uninterrupted connection between internal and external spaces. Any odd number configuration will provide a single-access traffic door for day to day use – this can be fitted with multi-point, entrance door style locking or with a simple shoot-bolt operated handle to the inside.
Additional Matching Door-sets: For project continuity we can manufacture single entrance or French doors from our bi-fold profile – this will provide you with matching sight lines which are also slimmer than our standard entrance door system. Single doors can be fitted with multi-point entrance door style locking or with a simple shoot-bolt operated handle to the inside.
- Slim sightlines
- Effortless opening
- Continuous clean lines
- Single access door option
- Highly rated for weather protection
Many thanks for the installation yesterday, which was completed to a high standard. We would also like to compliment the installation team on their polite and obliging manner
Green Circle are conscientious, reliable and represent good value in the long term. For these reasons I chose them without hesitation when building my own home
Everything went smooth from start to finish, no problems.
First class installation. This is a company I would recommend as being completely reliable for quality products and service
Very pleased with all aspects of the service
Delighted with our new door, your installer Steve did an excellent job
Love my doors
Beautiful product, professionally and promptly fitted
We were very pleased with the accuracy with which everything was measured and manufactured
The whole experience has been wonderful; kind, caring and patient people giving very sound advice, with a great fitting team to complete the job. Thank you to everyone for our finished doors and windows
Your communication was excellent throughout
Excellent customer service and a brilliant product. Expectations exceeded all round!
Thanks for all you have done to make our home look wonderful
Excellent product and service – just as we were promised
What sets Green Circle apart from other window manufacturer’s is not only their wonderful product and design but the fitting crew ; especially Steve, are first rate and nothing is overlooked or too much trouble – this has been the third company we have used and I would have no hesitation in utilising Green Circle again
Many thanks for our Sliding Doors – they look terrific and the guys who installed them worked very hard
Many thanks for a job well done. As you know we’re very exposed up here and I’m happy to report that after 2 winters our Bi-Folding doors are working perfectly and have stood up to the test of some very severe weather
Your Installers; Steve and Richard were Excellent!
On-site everyone was great, particular thanks to Steve who took so much effort to avoid undue mess
I would like to say a big Thank You to all at Green Circle, I have over 35 years experience in the construction industry and the Aluminium windows you provide are the best I have come across
In these days when care and attention to detail is brushed under the carpet – it is good to see these old values are still around in Green Circle
Professional company with excellent fitters and a high quality product
We have another six windows and a door to order in the new-year and we will not consider any other supplier. I can recommend Green Circle without hesitation
Thank you for your attention to detail, the fitting seemed to go very well and the completed job looks very good!
We are very pleased with the installation, and will certainly use Green Circle for future projects
The company make you feel a valued customer from start to finish of the process. The fitter has done a very good job at fitting the door for us and also advised us on aftercare maintenance. The doors are a fantastic addition to our renovated house, they are easy to operate and excellent value, as well as looking classy.
A Special Thank you for doing a Great Job, we truly appreciate your professionalism and attention to detail
A first rate installation throughout, from design, manufacture and install despite world wide problems with resin supply, I would not hesitate to use this company again for future projects !
Good to work with the design team, and a very helpful site install manager
Very Happy with the Quality and Workmanship of the Bi-Fold Doors and Windows, Your Installer was very Helpful
You were very helpful and patient with us, we appreciated your attention to detail, especially in the fitting stage. Very happy with the end product. Please pass on our thanks to the whole team
After 8 years of Green Circle Bi-fold usage…I thought I ought to maintain them a bit !!
I cleaned the grooves they run in, and sprayed silicon grease into the hinges, wheels and runners. There is no rust, no sign of wear, no loosening or wobble. They work as well as the day they were installed. Its a good product Kim. Thanks very much.
Quality of works and product fantastic!
Everything flowed very smoothly. Good all round result. Thank You!
Please let Trevor and the team know my client is absolutely delighted with the work you’ve done and the completed project
Your wonderful windows will be the ‘Jewel in the Crown’ of our new extension, framing the waterside views
Many thanks for a job well done, the finished project exceeded our expectations; we look forward to working with you in the near future on our ongoing project
We are so happy with our new Green Circle windows and patio doors. These were retro fitted recently to replace some UPVC units by another supplier, which were not that old but had caused us too many problems. Since getting these replaced by Green Circle windows and patio doors, we can really see and feel the quality. Condensation is no longer an issue, and they allow in much more light. They keep us warm and cosy. We would like to give Green Circle A++++++ for their service, the quality, look and smooth and easy operation of the patio doors and windows, for their excellent function and fit! We highly recommend you using this company.
We’re absolutely delighted with our new doors – many thanks to the whole team for a job well done
This is our second project with Green Circle. Once again the service has been absolutely first class from initial contact, through specification, ordering, delivery and after care. Green Circle is a truly professional company and an absolute pleasure to do business with. The product looks amazing in our house. We cannot recommend Green Circle highly enough. Many thanks to the whole team!
Interesting and reassuring to see the manufacturing process when we visited the first time
I’m really pleased with the windows and doors. After having been initially surprised by the price of aluminium frames, I can honestly now say they’re worth every penny
Now the scaffolding has come down the windows have come into their own, the graphite frames are spectacular, ready contrasting against the stonework. It has been a pleasure working with the team at Green Circle, from the first initial visit to the last unit being fitted the help and advice has been priceless. Quality does come with a price, but it was worth every penny , a company is only as good as the staff that work there. 10/10 Green Circle. Thank you.
Brilliant! The installation went really well and the installers cleaned up thoroughly – you’ve given the competition something to aspire to
We would be delighted to recommend Green Circle as both their service & product was excellent
Your surveyor and installers could not be more helpful and pleasant during installation. All interactions with the office were friendly and helpful
Excellent, professional service from start to fininsh
Everyone we dealt with was professional, courteous & knowledgeable. I would recommend Green Circle to anyone
Amazing service and everything completed on a very tight schedule – Thankyou for your help and efficiency completing the job well within time schedule !
Great product. Excellent service.
We’re very happy with the doors & windows and would like to say a huge thank you for the professional service we received. We recommend Green Circle highly
We were impressed by the obvious quality of the doors and the care with which they were installed by your skilled and courteous fitters
A first class company with an excellent product – designed and installed by a professional and friendly team. Please pass on our sincere thanks to all involved for making the whole experience such a pleasure
We are very happy with the whole process from the first contact to the final fix. Everyone has been very helpful and made us feel valued as customers on a personal level
Your guys turned up on time, looking smart and were very easy to deal with. My client and I would like to thank you all for an excellent job
We were very impressed with the way everything came into place, thank you all for your kindness and efficiency. We would not hesitate to recommend or use you again
Very pleased with all aspects of the service
The team is very approachable and cheerful
A big Thank you to Steve & Richard – the installation went without a hitch. Everyone who sees our new bi-folding doors is blown away. Well done to all at Green Circle for making us very happy customers
Excellent in all Respects. Efficient and friendly installation and the doors are perfect