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Cradle to Cradle

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What's your challenge?
Design with glass

From anti-reflection to color tints, modern glass enhances design in many ways.

Build with glass

Whatever the construction challenge, we have the glass to help meet it.

Glass for your home

See how the correct choice of glass can help transform a home – and even our wellbeing.

122 Leadenhall - 'The Cheesegrater'

The 75,000 square metres façade features a curtain wall that is double glazed to allow for a high solar protection on neutral-looking glass.

Fruit and Wool Exchange

The new-build façades are predominately brick-faced, with punched windows to reflect the surrounding context.

Caudwell International

Curved glass, punch windows and precast stone panels make up the envelope on a figure-of-eight footprint.

All our projects

From landmark construction projects to innovative residential builds, this is how our glass can make the difference.

Our story

Just as we were in 1932, we're ready to meet the challenges of now and the future

Environmental Stewardship

Find out more about how glass can support sustainable design

Quality control

We strive for quality in everything we do

Cradle to Cradle

Certified™ Products in Europe

Cradle to Cradle Certified Products
Cradle to Cradle Certified Products

Cradle to Cradle Certified® is a global standard for products that are considered safe, circular, and responsibly made. For more than a decade, Cradle to Cradle Certified has been helping companies to innovate and optimize materials and products according to advanced science-based measures.

Guardian Glass obtained the Cradle to Cradle (C2C) Bronze level Certification version 3.1 for three of our European product families – coated glass, laminated and float glass products – in December 2019. Not only are these products now re-certified overall to C2C Bronze level version 3.1, but Guardian Glass also met some of the more stringent requirements of C2C Bronze level version 4.0.

C2C assesses materials and products across five categories of sustainability performance:

Material Health (V4.0)

Optimizing the chemistry of the materials used in the design of products/buildings to minimize impact to human health and the environment. 

Product Circularity (V4.0)

Design to eliminate the concept of "waste" with intentional constituent cycles to retain the full value of the constituent. 

Water & Soil Stewardship (V4.0)

Treat water as a precious resource by encouraging effective management and use strategies. 

Social Fairness (V3.1)


Responsible business operations and ethics for all stakeholders, including the supply chain and the environment. 

Renewable Energy & Carbon Management (V3.1)

A future powered by renewable energy where manufacturers positively impact energy supply, ecosystem balance, and keep carbon in soil and vegetation.

Product Scorecards

Each Cradle to Cradle Certified™ product receives a scorecard with its achievement levels for the five categories:

Coated Glass


Laminated Glass

Product Scorecard

Float Glass

Product Scorecard



The advantages of building with C2C certified products

The Cradle to Cradle Building Charter encourages architects and designers to create positive impacts and beneficial footprints from the very beginning of their project. A growing number of brands such as BREEAM and LEED recognize the Cradle to Cradle Certified™ Product Standard as a preferred product designation for making more responsible purchasing decisions.


Some of Guardian Glass Europe's C2C certified products