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Made in Britain
SKYLON

Timber & Glazing

Traditional Sash Windows for London's Period Homes

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About Skylon

Welcome to Skylon Timber & Glazing, where craftsmanship meets functionality. We specialize in creating high-quality timber windows that enhance both the aesthetic appeal and energy efficiency of your home.

Serving London and surrounding areas, we bring over a decade of expertise in bespoke timber window manufacturing and installation. As members of The Joinery Network and FENSA registered installers, we offer free site surveys within 25 miles of London, with nationwide delivery available for all our products. Our windows are engineered for exceptional airtightness and energy efficiency, significantly reducing heat loss and lowering energy bills without compromising the traditional appearance of your property.

Traditional Sash Windows

Our expertise lies in creating authentic Georgian, Victorian, and Edwardian sash windows that perfectly match London's period architecture. Each window is meticulously crafted to preserve historical aesthetics while incorporating modern performance standards.

Whether your property is in a Conservation Area or is a Listed Building, we understand the planning requirements and deliver windows that meet both heritage and building regulation standards.

Traditional Sash Window

Why Choose Skylon

Made in Britain
Craftsmanship

Handcrafted Excellence

Every Skylon window is handcrafted in our workshop near London by skilled artisans who understand the intricacies of traditional joinery. We use time-honoured techniques combined with modern precision to create windows that will last for generations.

We use the premium Lignum timber system, ensuring PAS24 security certification on every installation. From sliding sash to casement windows, our products combine traditional aesthetics with superior thermal performance and acoustic insulation, keeping your home warm in winter and cool in summer.

Achieve Outstanding U-Values with Passive Glass

One of the biggest challenges architects and specifiers face on period property projects is meeting increasingly stringent energy performance targets while maintaining authentic aesthetics. Our timber sash windows can be fitted with Passive Glass — an advanced glazing solution that delivers exceptionally low U-values, making it possible to meet and exceed current Building Regulations and even Passivhaus standards.

Traditional double glazing typically achieves a U-value of around 1.4 W/m²K. With Passive Glass, our windows can reach U-values as low as 0.7–0.8 W/m²K — a dramatic improvement that can transform the overall energy performance of a building. For architects struggling to meet SAP calculations or Part L compliance on heritage projects, this is a game-changer.

Passive Glass uses advanced low-emissivity coatings and gas-filled cavities to minimise heat transfer while allowing maximum light transmission. The result is a window that looks identical to a traditional timber sash but performs at a level comparable to modern triple-glazed systems. This means no compromise between conservation requirements and energy targets.

Whether you are working on a Conservation Area renovation, a Listed Building project, or a high-specification new build that demands traditional aesthetics, our Passive Glass option provides the thermal performance you need. Contact us to discuss how Passive Glass can help your project achieve its energy targets.

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Trusted Certifications & Partners

FENSA Certified PAS24 Security Lignum System The Joinery Network