Original SlimLite™
Original SlimLite™ glazing offers trusted energy efficiency for homes across the UK.
Preserving Heritage, Improving Performance
SlimLite are the industry authorities in ultra-slim double glazing for listed buildings and conservation areas. Our heritage units achieve sightlines as minimal as 6mm, allowing you to maintain the authentic appearance of original single-glazed windows while forcing a dramatic improvement in energy efficiency.
Be Inspired
Inspiration Through Heritage
Explore our gallery and case studies to see how SlimLite has transformed heritage homes and historic properties. Discover real projects showcasing authentic design, craftsmanship, and timeless performance.
Original SlimLite™
Our foundational slim double glazing solution offers a significant leap over standard glazing. With sightlines from 6-8mm and argon gas fill, Original SlimLite™ units deliver U-values from 1.4 W/m²K.
Perfect for conservation zones where planning dictates units that respect the building’s heritage, these units fit seamlessly into existing timber windows, making them the superior choice for sympathetic renovation.
Authentic SlimLite™ (Krypton)
Our premium krypton-filled units represent the pinnacle of heritage double glazing technology. Achieving U-values as low as 1.4 W/m²K with the same ultra-slim sightlines, Authentic SlimLite™ uses krypton gas for superior thermal properties.
Fitted with reproduction hand-drawn glass, these units are the definitive choice for restoration where conservation officers demand authenticity alongside modern thermal power.
Pattern Glass Options
Respect the character of historic windows while meeting the vital need for privacy. Our slim units are available with a comprehensive range of authentic pattern glass designs, perfectly suited to Victorian and Edwardian properties.
These heritage units maintain the slim profile essential for conservation while incorporating the decorative glazing that defines your property, avoiding the visual issues of modern materials.
SlimVac Vacuum Glazing (LandVac)
The most thermally efficient technology available for historic buildings. SlimVac achieves an outstanding 0.4 W/m²K U-value with just 8.3mm thickness – thinner than many original single-glazed units.
With no gas fill required, it eliminates heat loss through convection. Toughened as standard, SlimVac represents heritage window engineering at its finest, ensuring a high quality of life without compromising architectural integrity.
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Get in touch
Want to learn more about our heritage glazing solutions? Our knowledgeable team is here to answer your questions and guide you through your project. Complete our contact form today, and we’ll be in touch as soon as we can.
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