The Heritage Glazing Authority

We invented ultra-thin double glazing for listed buildings.

Complete Conservation Service

From planning applications to final installation, we're with you.

Unmatched Certification Standards

One of only two UK companies holding full BS EN 1279 Parts 1-6 certification.

Authentic Slim Sightlines

Preserve architectural integrity with 6mm sightlines – the slimmest available.

Xenon: The Ultimate Insulating Power

As an inert gas with even lower thermal conductivity than Krypton, Xenon provides the most powerful thermal barrier possible within the narrowest glass configurations. It’s the ultimate solution for conservation projects where the preservation of slim profiles is non-negotiable, but maximum insulation is a priority.

While others shy away from Xenon due to the investment required, we embrace it for the results it delivers. For the most prestigious projects where thermal performance cannot be compromised, Xenon stands alone.

The Highest Level of Insulation Available

Xenon represents the absolute ceiling of double-glazing technology. It outperforms Argon and Krypton significantly, making it the premier choice for ultra-high-performance requirements. For heritage assets that demand the world’s best insulation, our Xenon units offer a level of efficiency that is simply unmatched in the industry.

  • Unrivalled energy efficiency for the home

  • The ultimate insulating fill for ultra-slim units

  • Maximum heat retention during peak winter

  • Reserved for the most prestigious conservation projects

white georgian windows

Expert Advice: Is Xenon Right for You?

Selecting the right gas requires an authority’s touch. Xenon is the preferred choice for elite ultra-conservation projects where building regulations demand extreme thermal performance within a fixed, slim glass dimension.

While Krypton serves the majority of high-end residential needs, Xenon is the hallmark of the premium project. Contact our specialists for an honest appraisal of whether Xenon’s superior properties are the right investment for your architectural legacy.

Request Your Technical Quote

Contact our knowledgeable team today to discuss specifications, performance requirements, and obtain competitive pricing for your project.

"Great service along with a quality product, also the best advice on the different types of the slimlite range."

Martin

via Trustpilot

"Great high quality product, does exactly what it is supposed to i.e. significant improvement in thermal insulation and noise reduction. I had an issue with the order which was immediately resolved. Would thoroughly recommend."

Duncan

via Trustpilot

"Experts in their field, a well run family business. Pleasure to deal with. Good communicators and they produce a quality product."

James Sunderland

via Trustpilot

Frequently Asked Questions

Find technical guidance on xenon double glazing, and determining when xenon offers the best thermal insulation solution.