Authentic Beauty, Mastered

Our heritage door glazing is the intersection of tradition and technology. By using ultra-slim sightlines and period-correct glass, we satisfy the most rigorous conservation officers while delivering the thermal performance of a modern entrance. It is the gold standard for external and internal heritage doors.

Slim Frames

Sightlines as narrow as 6mm for authentic period aesthetics and maximum natural light

Energy Efficiency

U-values from 1.2W/m²K with double glazing; 0.4W/m²K with vacuum glazing

Heritage Compliance

Approved for listed buildings and conservation areas by planning authorities

Multiple Options

Krypton-filled units, vacuum glazing, and traditional double glazing available

Bespoke Manufacturing

Custom-made to fit your exact door design requirements

Minimal Maintenance, Maximum Peace of Mind

Our heritage door glazing requires minimal maintenance to maintain its appearance and performance. Clean glass panels regularly with standard glass cleaner and inspect seals annually. All units come with comprehensive guarantees and our expert team provides ongoing support throughout the lifespan of your glazing, giving you complete peace of mind.

  • Clean glass with non-abrasive cleaner and a soft cloth
  • Check putty or sealant condition annually
  • Maintain drainage channels in external doors
  • Report any seal failure promptly for warranty claims
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Frequently Asked Questions 

Find answers to common questions about heritage door glazing, thermal performance, and conservation area requirements.

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Perfect for Period Properties

Your home’s character is its most valuable asset. Whether it’s a Georgian townhouse or a Victorian villa, we maintain that authenticity.

Our units retrofit into panelled, glazed, and patio doors with only minor alterations to your original joinery, ensuring a perfect, respectful integration.

Where door replacement is necessary, we offer traditionally crafted timber doors through our partnership with Gowercroft Joinery, maintaining authentic design while meeting contemporary performance standards.

Approved for Conservation Areas

We are the founding authority on heritage glazing, regularly specified by architects for the nation’s most sensitive projects.

We provide expert guidance through the planning process, ensuring your project meets every regulation while standing as a testament to quality for decades to come.

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Your Path to Exceptional Heritage Windows

We transform the intricate process of upgrading heritage windows into a seamless experience. From initial consultation through to installation and ongoing aftercare, our specialist team champions your project at every stage.
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Consultation and Assessment

Our heritage experts visit your property or project site to evaluate existing windows, understand your vision, and recommend the best approach. We navigate conservation area requirements and support planning application preparation with authority.

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Bespoke Design and Quotation

No two heritage properties share the same story. We develop comprehensive proposals detailing how our slim units will complement your frames, glass specifications and sight lines. Expect transparent pricing and honest project timelines.

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Precision In-House Manufacturing

Your bespoke glass units are crafted to exacting specifications at our dedicated facility. Every unit undergoes stringent quality verification, confirming sealant integrity, gas retention, and full BS EN 1279 compliance before dispatch.

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Expert Installation and Aftercare

Whether collaborating with your chosen installer or our approved network, we deliver comprehensive support. All installations carry guarantees against failures, with our team available for ongoing guidance and maintenance advice.

"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