Glasfabrik Lamberts GmbH & Co. KG

About Us

Ever since the company was established by glass engineer Laurenz Lamberts in 1887, the staff at Glasfabrik LAMBERTS has devoted themselves to the manufacturing of cast glass which is glass formed by rolling processes. The family-owned company is the only european cast glass manufacturer that is not bound to any group and is one of the biggest factories in europe with modern facilities and state-of-the art machinery.

Furthermore, LAMBERTS is the only glass factory in Germany and Europe to manufacture U profile glass in all stages of production (semi-finished as well as refined glass products).

We are the only cast glass company in the world to manufacture all types of existing cast glass:

LAMBERTS LINIT U-Glass, a special and "U"-shaped rolled glass
LAMBERTS Ornament Glass (also available as a special patterned glass for facades)
Antimony-free Solar Glass LAMBERTS EcoSolar (optimized cast glass generating solar power since 1993!)
LAMBERTS Wired Glass and Wired Ornament Glass

Ecology – the lowest CO2 emissions

As the first and only cast glass company in the world, LAMBERTS manufactures all glasses according to a unique EcoGlass concept (see Ecology). LAMBERTS is one of the leading factories for architectural glass in highest quality while producing with lowest CO2 emissions.

This is why we are not only offering glass products that successfully contribute to architecture as application-specific, ecological material for years to come, but also glasses manufactured the eco-friendliest way possible.

For this very reason LAMBERTS LINIT U-glass was selected by an expert jury as one of the TOP 10 GREEN BUILDING PRODUCTS in 2008. The international competition was organized by the renowned trade journal „Sustainable Industries“ and LINIT U-glass was the only glass product among the winners.

Quality - 100 % MADE IN GERMANY

All LAMBERTS glasses are manufactured solely in our factory in Wunsiedel, Upper Franconia (Germany), by a workforce that fosters family traditions. We are using state-of-the-art machinery and comply with the highest quality and environmental standards. It is a matter of course that we are certified in compliance with the Quality Standards DIN ISO 9001:2015, 14001:2015 and 50001.

Continious advancements of our glasses in partnership with suppliers and costumers have resulted in the fact that our products experience a greater demand than ever and are increasingly applied in the most sophisticated projects.

Most sophisticated projects and applications with glasses made by LAMBERTS

After World War II, U-glass was originally used as a cheap, cost-effective solution for simple industrial and commercial buildings. Today it is used for elaborate, design-driven architectural projects all over the world – such as museums, theaters, shopping centers, stadiums and many more – due to its quality, refinement possibilities, clear forms and technical variety.
LAMBERTS LINIT U-glass is part of the training facilities of FC Bayern München and Real Madrid as well as the cable car station built for the Olympic Games in London or the Stubai glacier.

The most renowned architectural offices in the world like Steven Holl, Ian Ritchie, Rem Koolhaas and many more are planning with LAMBERTS glasses. Internationally renowned architecture awards like the LEAF prize awarded by the Leading European Architect Forum (most recently in 2016 for the Sainsbury Wellcome Center as Best Project and Best Facade) or a number of AIA Honor Awards reflect the great appreciation for our products..

Many years ago, our deep conviction, that cast glass can be used for more brilliant things, encouraged us to break new ground and explore new horizons. As a result, we are the first profiled cast glass manufacturer (since 2000) to offer thermally toughened and processed U-glass of up to 7 meters as safety glass (with or without color enameling or sandblasting).

We are also constantly widening our portfolio of glass surfaces to meet the growing demands of the architects for the most aesthetic solutions. In addition, the very first point-fixed profiled glass facade (via drill hole) was successfully realized with LAMBERTS LINIT U-glass.

LAMBERTS Ornament Glasses are frequently used in facades as an alternative to neutral float glass or in combination with float glass due to their impressive play of light.

LAMBERTS EcoSolar is the first antimony-free solar glass for the photovoltaics and collector industry.

You can look forward to many more new products and enhancements in the future.
On our "References" page you can click through a selection of already finished projects. Or learn more about why LAMBERTS glasses are also special in regard to ecological criteria on our page "Ecology".

Our values

Starting in the early nineteen-nineties, when a growing environmental movement in Germany caused a profound change of views regarding our dealings with nature and available resources, LAMBERTS already began to concentrate on ecological improvement of all relevant corporate processes, especially the production.

This is all the more motivated by the fact that we are based in the natural preserve region of the "Fichtelgebirge" in the heart of wonderful nature since 1887. Company founder Laurenz Lamberts chose Wunsiedel-Holenbrunn due to its perfect geographic location, where he was able to manufacture glass from locally mined, natural products.

In a first step, we analyzed and scrutinized the manufacturing method (the melting furnace and the firing method) as well as the use of recycled glasses from our own and economic cycle.

Over the years all measures were combined in our concept "LAMBERTS EcoGlass" which is still unique in the field of architectural and structural glass.

The concept of EcoGlass is based on six pillars making it one of the most sustainable construction products available:

1. Oxygen-fired furnace since 1996!

Since 1996 LAMBERTS is the first and only cast glass company in the world to manufacture all glass types using an oxygen-fired melting furnace which is the most ecologically sustainable method available. This pioneering step was implemented due to our deep conviction that production processes should be evaluated and improved in terms of environmental friendliness. Through the years LAMBERTS continuously made an effort to gradually enhance all production processes.

2. Percentage of recycled glass in the molten glass

At LAMBERTS we recycle 100 % of our glass rejects during production and use up to 50 % recycled glass from the economic cycle by means of optimized production processes.

3. Green energy

As of 2011 all of Glasfabrik LAMBERTS, from the computers in the administrative offices to the melting furnaces in production – is solely powered by more expensive green electricity – a decision made deliberately. Since the beginning in 1887 our factory is located in Wunsiedel, Bavaria. Wunsiedel is probably one of the leading green cities in Germany as the energy made available by the Stadtwerke (municipal works) is 100 % green and generated 100 % in Bavarian run-of-river power stations.

4. Sustainability

LAMBERTS EcoGlass is 100 % reusable if it – for whatever reasons – needs to be disposed in the future. When it is melted down, no harmful side effects are created whatsoever. On the contrary! The melting down of our glasses would have additional environmental benefits.

5. Antimony free glasses

For decades all glasses manufactured at LAMBERTS, including the solar glasses for photovoltaics and the collector industry, are made without cheap antimony. This raw material has been under suspicion to be carcinogenic for a long time.

6. Low CO2 emissions

The Glasfabrik LAMBERTS is one of the best architectural cast glass companies in the world while also ensuring lowest CO2 emissions (see downloads: Environmental Product Declaration).

7. CO2 savings in buildings due to greatly improved thermal insulation glass

Lambert's glass products and thermal insulation solutions themselves contribute to reducing CO2 emissions with significantly improved thermal insulation concepts and optimised U-values (also in combination with Thermolight products). The energy savings they achieve compensate within a short time for the CO2 emissions generated during their manufacture.

8. Bird protection

Up to 100 million birds die every year in Europe, and up to one billion in the USA, because glass in architecture is not recognised as an obstacle in time. In 2016, LAMBERTS LINIT©EcoGlass was the first profiled building glass to be tested and certified as bird-friendly by the American Bird Conservancy (ABC), the leading authority on bird-friendly architecture in the USA. The same applies to LAMBERTS ornamental glass.

9. World's first architectural glass manufacturer with certificate of origin and latest EPD for all glass products

Lamberts is the first architectural glass manufacturer in the world (flat glass, ornamental glass, wired glass, profiled glass, solar glass) to provide proof of origin and a currently valid EPD (Environmental Product Declaration) from an authorised testing institute in accordance with European standards for all its glass products and all its production plants.


All those measures and many more individual actions result in the fact, that we are not only offering you glass products successfully contributing to architecture as an application-specific, ecological material for many years, but also in the fact that the glasses are manufactured in the most environmentally friendly way currently available.

In 2017 and in a very complex and detailed process we started to develop an Environmental Product Declaration (EPD) for all our glass products according to the current standards of DIN EN ISO 14025 and EN 15804 to be able to provide concrete proof. This happened in cooperation with the renowned and accredited glass institute "ift Rosenheim" and also includes the consumption data of the company among other things (see downloads below). The outstanding results for our sector speak for themselves and it's a given that we are also certified according to DIN ISO 14001.

When the ecological aspects of your glass are important to you, please compare the glasses of other companies and request their latest EPDs according to current standards!

Our International Locations