United Kingdom & Ireland - EN
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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.

Highlights
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.

Explore Guardian Glass projects in your area and beyond with Google Street View and be inspired by the possibilities.

Discover our showcase projects, captured through the lens of professional photography.

Highlights
Our story

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

Environmental priorities

Find out more about how glass can support sustainable design

Quality control

We strive for quality in everything we do

The glass that combines
thermal insulation with
high natural light

Windows can play an important role in helping to keep your home comfortable throughout the year. But standard glazing can lead to heat loss in winter and reduced comfort indoors.

ClimaGuard™ Neutral 1.0 glass is designed to provide strong thermal insulation while allowing high levels of natural daylight into your home. It helps keep warmth inside during colder months, while maintaining a bright and comfortable living space. It also features a neutral appearance and a low level of reflections on the glass, offering clear and natural views to the outside.

Guardian LamiGlass
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The image shown are for illustration purposes only and may not be an exact representation of the product

 

 

Designed for winter thermal comfort

ClimaGuard Neutral 1.0 helps improve comfort in your home by combining insulation and natural light.

Keep warmth
inside in winter

• Helps reduce heat loss through windows and maintain a stable indoor temperature during cold periods 

Enjoy natural light
 and clear views

• Allows generous levels of daylight into your home to help create bright living spaces while providing clear and natural views to the outside

Compliance with building
energy regulations

• Helps meet the requirements of Part L Building Regulations for double glazing in new and existing homes 

 

 

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Guardian Sun Packages

Combine with other glass technologies

ClimaGuard Neutral 1.0 can be combined with other glass technologies to add performance to your windows. Depending on your needs, it can help provide solar control, enhance safety, reduce outside noise, and more.

We have developed the Guardian Sun packages, which group different glazing options together, to help you choose the right window glass easily based on your needs. Discover the different Guardian Sun packages and how they can help enhance comfort in your home. 

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How ClimaGuard Neutral 1.0 works

ClimaGuard Neutral 1.0 features a transparent coating designed to reduce heat transfer through the glass compared to uncoated glass. This coating helps keep warmth inside your home while still allowing a high level of natural light to pass through. The “1.0” refers to the U-value of the glazing, which measures how much heat passes through the window—the lower the U-value, the better the insulation.

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  • ClimaGuard Neutral 1.0 coating
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Glass designed to perform for your windows

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ClimaGuard Neutral 1.0
Double Glazed Solution
Keep cool
in summer
Keep warm
in winter
Reduce
noise
Glazing
Composition
(90% Argon)
Solar Factor
(%)
Thermal
Insulation
(W/m2K)
Sound
Reduction
Index (dB)
Comfort Package550.6324-16-4 *
+ Advanced Package: Safety & Security531.0364-16-33.2 *
+ Advanced Package: Safety, Security & Acoustic531.0384-16-33.SR
Standard Solution Comparison651.1304-16-4 *
ClimaGuard Neutral 1.0
Triple Glazed Solution
Keep cool
in summer
Keep warm
in winter
Reduce
noise
Glazing
Composition
(90% Argon)
Solar Factor
(%)
Thermal
Insulation
(W/m2K)
Sound
Reduction
Index (dB)
Comfort Package430.5324-16-4-16-4
+ Advanced Package: Safety & Security450.5394-16-4-16-33.2
+ Advanced Package: Safety, Security & Acoustic450.5424-16-4-16-33.SR
Standard Solution Comparison550.6324-16-4-16-4 §

Table Definitions

Solar Factor: The level of solar radiation (heat) entering the home.

Thermal Insulation: How much the glass insulates. The lower the value the higher the insulation.

Sound Reduction Index: The higher the value the better the sound insulation.
Certified according to EN ISO 10140-2

Coating Surfaces

* #3 ClimaGuard Neutral 1.0 
† #3 ClimaGuard A 1.1
‡ #3 & #5 ClimaGuard Neutral 1.0 
§ #3 & #5 ClimaGuard A 1.1

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