Clean-lined flush casement windows with a timber core, aluminium exterior, and outstanding thermal performance – available in double or triple…
Timber Performance, Aluminium Precision
Our Aluclad windows unite the warmth of engineered timber internally with the durability of an aluminium exterior. Available across four distinct ranges – each engineered to deliver excellent insulation, design flexibility, and long-term reliability across a wide range of project types and architectural styles.
The Best of Both Materials
Aluclad timber windows offer something that neither pure timber nor aluminium windows achieve alone. The timber core provides structural integrity, natural aesthetic appeal, and excellent thermal insulation, while the aluminium exterior protects against the elements and requires virtually no maintenance. This combination is increasingly the specification of choice for architects working on design-led, energy-conscious buildings.
Our manufacturing processes are precise and consistent, with each window engineered to exacting tolerances. Mortise and tenon jointing, factory-applied microporous finishes, and warm edge spacer bars are among the details that distinguish our Aluclad windows from lower-specification alternatives. The result is a product that performs reliably from final installation onwards, with a smooth operation that lasts.
Triple Glazing and Thermal Efficiency as Standard
Triple glazing is a key factor in the performance of our Aluclad range. Our triple-glazed systems achieve U-values as low as 0.79 W/m²K, making them an excellent choice for Passivhaus projects, low-energy new builds, and any project where thermal performance is a primary consideration. Thermal breaks within the aluminium cladding prevent cold bridging at the frame, supporting consistent interior comfort and reducing energy demand.
Available in the full RAL classic colour range with a choice of engineered redwood, hardwood, Accoya, or European oak timber cores, our Aluclad windows offer complete design flexibility. Whether the project calls for a modern look with slim profiles or a more traditional aesthetic, our range provides a considered solution backed by superior craftsmanship and peace of mind at every stage.
Frequently Asked Questions
Common questions about our Aluclad timber windows, answered by our technical team for architects, specifiers, and self-build clients.
Contact UsOur double-glazed Aluclad windows achieve Uw values of 1.2 W/m²K, while triple-glazed versions reach as low as 0.8 W/m²K – and 0.79 W/m²K in our certified Passivhaus range.
Triple glazing typically reduces window heat loss by 30–40% compared to high-performance double glazing, with significantly improved acoustic attenuation and reduced cold-edge condensation at the frame perimeter.
For new builds, Passivhaus projects, or any property targeting low energy consumption, triple-glazed Aluclad windows offer a measurable long-term return in reduced heating costs and improved comfort.
Our standard specification uses engineered redwood. Engineered hardwood, Accoya, and European oak are also available, offering a range of durability, stability, and aesthetic finish options to suit your project.
The aluminium exterior requires only occasional cleaning and is resistant to weathering and corrosion. The internal timber finish uses a factory-applied, microporous paint or stain system that provides long-lasting protection with minimal upkeep.
Our Projects
Clifden, Ireland
Find out more about Clifden, IrelandDublin, Ireland
Find out more about Dublin, IrelandWorlds End, Ireland
Find out more about Worlds End, IrelandBallyorban, Ireland
Find out more about Ballyorban, Ireland
We purchased a combination of Alu-Clad windows, Lift & Slide doors and entrance glazing from Zyle Fenster for our family home.
Every member of the team was knowledgeable, approachable and highly professional. Manufacturing quality is outstanding and the installation was carried out with real attention to detail. Even after completion, they followed up to ensure everything was perfect.
It’s rare to find a company that delivers exactly what they promise. We would happily recommend Zyle Fenster to anyone building or renovating a home.
Seán & Emma R. – County Meath
Our architect specified Reynaers aluminium systems and recommended Zyle Fenster for the supply and installation.
The large glazing panels have completely changed the feel of the house while maintaining excellent thermal comfort throughout the winter. The installers were meticulous and every junction was finished beautifully.
It’s refreshing to work with a company that genuinely cares about delivering a quality result.
Niamh F. – County Clare
We chose Schüco aluminium windows and doors through Zyle Fenster for our contemporary home.
Everything about the experience was professional. From technical advice through to installation, the team demonstrated real expertise. The slim profiles look fantastic and the quality of the finish is exactly what we hoped for.
A premium product installed by a premium company.
David L. – County Waterford
Our conservation project required slim glazing without compromising performance, and Zyle Fenster recommended their vacuum glazed timber sash windows.
The result is outstanding. The traditional appearance has been preserved while the improvement in warmth and noise reduction is remarkable. You simply wouldn’t know they contain such advanced technology.
Excellent communication, excellent installation and an exceptional product.
Michael & Sarah K. – County Kilkenny
Finding authentic timber sash windows that also met modern energy standards wasn’t easy until we found Zyle Fenster.
The finished windows perfectly suit our Victorian home while dramatically improving comfort. They operate beautifully and the attention to detail is outstanding.
The installation team treated our home with great respect and left everything spotless each evening. We have received countless compliments from neighbours.
Margaret C. – Dublin
We wanted a large glazed feature overlooking the garden while still achieving excellent thermal performance. The timber curtain wall supplied by Zyle Fenster exceeded every expectation.
The craftsmanship is remarkable and the amount of natural light it brings into the house is incredible. Our architect was particularly impressed with the technical knowledge and attention to detail shown throughout the design process.
Professional, reliable and extremely high-quality workmanship.
Patrick D. – County Wicklow
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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.
- Unit 12L
- Six Cross Roads Business Park
- Kilbarry, Waterford
- X91 Y985
