Aluminium Bi-folding Doors

Our aluminium Bi Folding sliding doors will give your home individuality and character. A Bi-folding Door will open up a room to light and over a 90% clear opening, with flush floor levels from inside to outside. Bringing the outside inside and creating a functional and open space for living, working and entertaining. Bifolds give you a very aesthetically pleasing alternative to conventional Sliding Patio Doors.

We have been manufacturing made to measure aluminium bi-folding doors since 2005, and were officially the first UK Manufacturer to offer aluminium bi-fold doors to the trade. We are one of the UK's largest manufacturers of aluminium Bi-folding doors. With over 25 years of experience, a 10 year guarantee, competitive prices and specialised support its no wonder we are first choice for folding sliding patio doors.

How Do I Install Your Bifolding Doors?

Assembly & Fitting Manuals
Durafold 1000 Bi-folding Doors
Assembly and fitting guide for our Durafold 1000 Bi-folding Doors
PDF Download
0.5 Mb
Continental Bifold Fitting Guide
Assembly and fitting guide for our Continental Folding Doors.
PDF Download
0.5 Mb
Smarts Mullion Fitting Guide
Assembly and fitting guide for our Smarts Mullion Bifold Doors.
PDF Download
3.4 Mb

Fitting our bifolding doors is not difficult, but it does require a lot more precision, knowledge and experience than fitting other aluminium window and door systems. The essential things to remember are that when fitting Bifolding doors the cill / threshold, head and jambs must be fitted dead level and square, otherwise the Bifolding doors will not operate correctly. The doors must also be Toe and Heeled correctly in the positions shown in our our Installation manuals (see PDF downloads right). If the correct Toeing and Heeling procedure must be undertaken to ensure correct and sustained operation of your doors. The packers support the weight of the door when it is open, preventing the frames from dropping.

Watch Toe And Heeling Video


If you have any questions on bi folds that have not been answered by our website, then please call us and ask one of our advisors. We have 10 lines and they are happy to answer you questions. Speak to our folding door technical department directly when you call 01268 686513.

Dont Want To Do This Yourself?

We have found that many trade companies do not want the fuss and hassle associated with fitting bifolding doors, this is why we have introduced what we refer to as our fixing service. Designed specifically to help out builders, our trade customers and prevent site visits later on when the doors have dropped. We come out onto site and fit your doors into an existing and prepared aperture for you, leaving them in a fully working condition with nothing left to do, but make good.

We can also provide onsite tuition, training and advice on how to fit our folding doors so that you can give your fitting teams the opportunity to fit our bi-folding doors more confidently on future jobs.

Read more about our fixing service

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Contact Information

  • T: 01268 681612 (Office)
  • T: 01268 695100 (Showrooms)

  • F: 01268 510058 (office)
  • E: sales@duration.co.uk
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