Ultra Thin Composite Windows

Ultra Slim wooden and composite windows eterno

Exceptional Quality and Design

Ultra thin composite windows with exceptional durability and minimal maintenance required. The best choice for a warmer, quieter and safer home compared to aluminium, timber and uPvc alternatives.

Our ultra thin wooden aluminium windows are guaranteed to stand out with their stunning contemporary design. Handmade by Italian craftsmen, the lightweight and durable frames can make up large openable sashes up to 4m while maintaining a frame as thin as 3.7 cm.

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bespoke timber windows replacement London Eterno before and after

Our Happy Customers

“Smooth Process, Excellent Product!”

“Working with Eterno was smooth and efficient. The design and specification process was seamless due to the attentive and knowledgeable team.

The windows they provide are not only attractive but also highly functional. They offer superb insulation and impressive soundproofing. We are very satisfied with the overall experience. Highly recommended!”

– Mrs Anja, Regent’s Park, London

Superior protection, zero maintenance

Each frame is structurally built up of multiple timber layers, making the windows as strong as steel, while maintaining a low weight and supreme energy efficiency. External aluminium cladding provides a sleek outside finish and protects the windows from the elements without extra maintenance needed – no painting, sanding or staining required!rnrnHigh security Argon filled glazing with a warm edge spacer keeps the warm in during cold days and keeps the heat out during heatwaves.

Windows for life

Exceptional expected lifetime of 60+ years with up to 10 years of warranty and minimal to no maintenance

Sustainable & eco friendly

Handmade in Italy with responsibly sourced timber from PEFC-certified forests

Endless design freedom

Large opening sashes, numerous opening types and countless design and finish options available

Superb energy efficiency

Оutstanding U-values as low as 0.8 W/m2K thanks to cutting-edge technology

Let’s talk about your project

Get in touch today and our experts will answer all of your questions. We’ll come up with a bespoke solution that best fits your project so we can help turn your vision into a reality!

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