Comfort Matters

High Performance Triple Glazed Windows And Doors

At Green Building Store, we believe you thrive in the places where you experience comfort. Discover our range of triple glazed windows, suitable for low energy and Passivhaus homes. We improve the very fabric of your building, making it energy efficient and a healthier and more comfortable place to be.

Timber Triple Glazed Windows

GBS-78 and GBS-98

Aluminium Clad Timber Triple Glazed Windows

GBS-98 and GBS-98A

Timber: Low Energy Projects

Triple Glazed Timber Windows (GBS-78)

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  • U Value: 0.80 W/m2K
  • Triple Glazed Window
  • Timber Finish
  • Perfect for low energy projects
  • Choice of designs and styles
  • FSC® certified timber

Triple Glazed Window Timber Frame BadgeTriple Glazed Window U Value Badge

Aluminium: Low Energy Projects

Triple Glazed Aluminium Clad Windows (GBS-78A)

Triple Glazed Timber Window Ultra Low Energy Projects

  • U Value: 0.75 W/m2K
  • Triple Glazed Window
  • Aluminium Clad
  • Perfect for low energy projects
  • Choice of design and styles
  • FSC® certified timber

Triple Glazed Window Aluminium Clad Timber Frame BadgeTriple Glazed Window 0.75 U Value Badge

Timber: Ultra Low Energy Projects

Triple Glazed Timber Windows (GBS-98)

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  • U Value: 0.71 W/m2K
  • Triple Glazed Window
  • Timber Finish
  • Perfect for ultra low energy projects
  • Choice of design and styles
  • FSC® certified timber

Triple Glazed Window Timber Frame BadgeTriple Glazed Window 0.71 U Value Badge

Aluminium: Ultra Low Energy Projects

Triple Glazed Aluminium Clad Windows (GBS-98A)

Triple Glazed Window Aluminium Clad Timber Ultra Low Energy

  • U Value: 0.72 W/m2K
  • Triple Glazed Window
  • Aluminium Clad
  • Perfect for Ultra low energy projects
  • Choice of design and styles
  • FSC® certified timber

Triple Glazed Window Aluminium Clad Timber Frame BadgeTriple Glazed Window 0.72 U Value Badge

Our Triple Glazed Window Ranges

FSC Certified TImber

Our window ranges are available in two types of frame and two depth options;

  • Timber
    • 78mm for low energy projects (GBS-78)
    •  98mm for ultra low energy project (GBS-98)
  • Aluminium Clad Timber: 
    • 78mm for low energy projects (GBS-78A)
    •  98mm for ultra low energy project (GBS-98A)

*78 or 98 refers to the depth of the window frame (before aluminium cladding)

All of our timber is responsibly sourced and FSC certified.

 

What Makes Our Windows Better?

Our most energy efficient triple glazed windows introduce a slimmer frame whilst maintaining dual compression seals for achieving high air tightness standards. Make a genuine difference to the comfort of your home by keeping your home warm during the colder months and cooler during the summer.

So, trust in our 30 years of experience helping people create energy efficient dream homes. Let us be part of your team, and we’ll be with you every step of the way, delivering comfort by making buildings better.

Due to the complexity of specifying our products, we have a minimum order policy. To realise the benefits of triple glazing, including the continuity of thermal performance, we only recommend replacing windows throughout all of your home for replacement or retrofit projects.

 

What Are Triple Glazed Windows?

Windows that are triple glazed have three panes of glass instead of the more common single or double glazed windows. The extra argon filled cavity in a triple glazed window offers an extra layer of insulation, making them more energy efficient. 

 

How Do Triple Glazed Windows Work?

Triple Glazed Window Cross section

Each layer of glass is separated by sealed gaps of Argon. These gaps act as insulation that keeps your home warm in the winter and cool in the summer. 

Our triple glazed windows have the following features:

  • Low u values: Argon triple glazing as standard for comfort and great thermal performance
  • Airtightness: Dual air compression seals ensure long term airtightness to class 4 
  • High security: Multipoint locking tested to Secured by Design standards

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