Technical Knowledge
BIM-ready systems with integrated 3D data for seamless design, documentation, and Revit coordination
A Glazing Partner Built Around Your Specification
Zyle Fenster works directly with architects, Passivhaus consultants, contractors, and developers to supply individually specified windows, doors, and curtain wall systems in timber and aluminium-clad timber. With over 25 years of experience across the UK market, we provide the technical depth, product range, and supply reliability that complex, design-led projects demand – from initial specification support through to coordinated delivery and installation.
Why Specify Zyle Fenster?
Because the glazing specification is too important to leave to a generic supplier. We bring technical knowledge, a genuinely broad product range, and a hands-on approach to every project – so the right product is specified correctly, first time.
Contact UsPassivhaus
Triple-glazed Aluclad systems engineered to meet or exceed Passivhaus performance standards.
Acoustic Performance
Contemporary Aluclad to traditional timber sash, fully tested to 45dB to ISO 10140-2:2021.
Individually Specified
Every product individually configured to your size, performance, finish, and installation requirements.
Featured Products
From First Specification
to Final Sign-Off
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, ScotlandWhat our customers say
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
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
