Quality is Priceless with Original Glass's 5 Year Full Unit Guarantee

Thin Sealed Units

Designed for Conservation Approval Recommended by a Leading Architect Meets all 6 parts of BSEN-1279 Made in Britain

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Superthin Heritage Double Glazing.

A combination of 20 years experience operating in the sector, dedicated state-of-the-art factory, and willingness to go above and beyond for our customers, all helps make The Original Glass Company synonymous with quality and professionalism. Ideally based within the beating heart of Cambridgeshire, we readily supply 25,000 super thin double glazed units every year.

Helping to relieve tradesmen of many the usual on site stresses is the fact that all our glazing complies with BS EN 1279: Parts 1-6, conforming to the strictest thermal performance. We place emphasis on delivering what we promise, so to see our sealed units for yourself simply request a sample.

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Thin Heritage Glazed Units

Quality is Priceless

Such incredible attention to detail is simply not possible with most thin sealed glass units outside of our range, and we at The Original Glass Company take extra special time to never cut corners. From initial manufacture to onsite supply, every item of glazing is handled with the upmost care, and is comparatively cost-effective for installers when taking into account the high level of quality. We’re so confident in this sentiment that a 5 year guarantee comes provided as standard with every unit.

We chose The Original Glass Company because the product has solid test evidence to underpin its manufacturing quality. The pricing was competitive, the company were proactive in developing the critical details and prototypes for the installation, and the service is what you would expect from a long established professional company. 5th Studio would recommend The Original Glass Company to anyone with a need for specialist thin sealed units.

Oliver Smith, Director - 5th Studio

For Architects

Giving project architects the smoothest time possible from the time of planning to final installation, we develop Heritage units that help you overcome even the most difficult expectations.

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For Trade

We actively fabricate and supply our entire range of thin sealed units countrywide to the trade, letting all reputable trade installers cater for conservation builds.

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Modern Performance with Traditional Flair

Our thin glazed Heritage units combine the latest glass manufacturing technology with the traditional aesthetic of period properties. The Heritage range of thin sealed units is manufactured to faithfully replicate the look of single pane glazing while achieving modern standards for energy efficiency performance.

Surrey Residential Property


A fantastic residential renovation for these Surrey homeowners

Trinity College


2,250 premium heritage sealed units for the grade 1 listed Cambridge college

The Star & Garter

Richmond, Surrey

Glazing the breath-taking restoration from historic stately home to luxury apartments

Sheffield Terrace Residential Property


Providing High Quality Thin Sealed Units for this Heritage London Property

Alton Residential Property


Peace of mind for the residents of this Grade II listed Alton cottage

Photo of traditional style building using thin sealed units

Double Glazing for Heritage Refurbishment

At The Original Glass Company we offer three distinct choices of thin sealed unit glazing options, but you can rest easy knowing that all faithfully replicate the look and feel of original glass. Our products are fully suitable to meet the widest range of applications, setting the bar for unparalleled quality, respectful design, while also introducing some of the very best thermal performance previously unheard of in such classical builds.

Having supplied double glazed units for many high profile restoration projects, we’ve built up a reputation for never compromising on quality or the stunning visual aesthetic such beautiful buildings deserve. Even for listed restoration projects as sensitive as Grade I, we’ll always work tirelessly to meet the requirements of conservation officers and local council constituencies to successfully maintain the aesthetic significance of important historical buildings.

Get a Super-thin Double Glazing Sample!

If you’d like to experience our premier product up close, we readily offer those of interest a super-thin double glazed unit sample. Wherever in the UK you are based, simply input your details online and our team will get one sent out to you promptly.

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Our glass meets the strictest of standards

BS EN 1279: Parts 1-6

This allows us to:

  • Offer a 5 year guarantee for the entire glazed unit, not just the glass
  • Provide you with industry leading ultra-slim glazing with modern performance
  • Pass the stringent building regulations surrounding conservation projects

CE Mark Certification BS EN 1279 Accredited BS EN 12150 Accredited UKAS Certification UK manufactured

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Request a sample and we'll send you one to your door of charge.

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