Slim-frame Reynaers bifold doors combining high specification performance, versatility, and a clean contemporary look for design-led projects.
Two High-Performance Bifold Door Systems
Zyle Fenster supplies two premium aluminium bifold door systems – the Reynaers CF77 and the Schüco ASS 70FD. Both are designed for smooth operation, superior quality, and high-performance glazing across a full range of configurations.
Designed for Large Openings and Natural Light
Aluminium bifold doors are a popular choice for homeowners and architects seeking to connect interior spaces with outdoor areas. Our bifold door systems fold neatly to one or both sides, creating a large opening that maximises natural light and easy access to patios, gardens and terraces.
Available across a range of configurations, our aluminium bifolds are suited to both new-build and refurbishment projects. Whether you’re specifying bifold patio doors for a contemporary extension or a grand design build, Zyle Fenster offers a solution to match your next project with precision and confidence.
Performance, Durability, and Peace of Mind
Both bifold door systems offered by Zyle Fenster are built to deliver high performance across thermal efficiency, acoustic performance, and weather resistance. With polyamide thermal breaks, double or triple glazing options, and robust locking systems, our aluminium doors meet and exceed current building regulations without compromise.
Finished in a wide range of colours – including dual-colour options with different finishes inside and out – our bifold doors offer durability alongside design freedom. With over 25 years of experience supplying the UK market, Zyle Fenster brings technical expertise and genuine peace of mind to every project.
Bifold Door FAQs
Common questions about our aluminium bifold doors, answered clearly. For project-specific guidance, our technical team is always available to help.
Contact UsOur bifold door systems are available in a wide range of configurations – from 2-panel to multi-panel arrangements – opening to the left, right, or both sides to suit your opening size and layout.
Both the Reynaers CF77 and Schüco ASS 70FD support double and triple glazing options, with glass thicknesses ranging from 6mm to 63mm, giving you flexibility in thermal and acoustic performance.
Yes. Our bifold door systems are designed to meet current UK building regulations for thermal performance, air permeability, and weather resistance, with security accreditation to RC 2/WK 2 standard.
Both systems are available in a full range of polyester powder coat colours and anodised finishes, including dual-colour options – allowing a different colour on the interior and exterior face.
Yes. The Reynaers CF77 system allows one door panel to function as a principal entrance independently, without affecting the operation of the remaining panels – a practical feature for everyday use.
Our Projects
Stirling, Scotland
Find out more about Stirling, ScotlandHamill House, Scotland
Find out more about Hamill House, ScotlandEdinburgh, Scotland
Find out more about Edinburgh, ScotlandDollar, Scotland
Whether incorporated into a modern contemporary new build or unlocking a period property, our curtain wall can reinvigorate a property by letting the natural daylight come flooding in.
Find out more about Dollar, Scotland
Zyle supplied Passive House windows for our new build, and the system met all project expectations. Airtightness and overall performance were delivered as specified, and their technical coordination on site was reliable and detail focused.
Private Owner
Mark Reynolds, Bristol
Our vacuum glazed sash windows provide an excellent balance between heritage sensitivity and modern performance. The slim glazing preserves the character of the property while significantly improving overall comfort. Installation was precise and professionally managed.
Private owner
Laura Mitchell, Southampton
The Passive House windows performed exactly as required within our project specification. Installation detailing, sealing, and overall execution were handled correctly, ensuring a high standard of delivery. A technically competent and reliable supplier.
Private Owner
Andrew Collins, Cambridge
We selected aluminum windows for their contemporary aesthetic and low maintenance. The proportions are well considered, and the finish quality is consistent throughout. Installation was efficient and carried out with strong attention to detail.
Private Owner
Rachel Adams, Reading
The triple glazed sash windows integrate seamlessly into the existing façade while offering a clear upgrade in comfort. Craftsmanship is evident in both joinery and installation, and the improvement in acoustic insulation is immediately noticeable.
Private Owner
Thomas Green, Nottingham
The Alu-Clad windows and doors introduced a strong architectural presence while maintaining a refined internal finish. Detailing, material quality, and consistency across the project are of a high standard. The process was structured and dependable from start to finish.
Private Owner
Olivia Bennett, Oxford
Featured Products
Talk to Our Team
Whether you are an architect specifying for a new project, a self-builder planning your custom home, or a developer working to a programme, our team is here to help. Get in touch for technical advice, product information, or to request a quote.
- 124 City Road
- London
- United Kingdom
- EC1V 2NX
