Kevin McCloud
Brand Ambassador for Green Retreats

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Double Glazing

Double Glazing

Industry-leading ‘extra-clear’ toughened double-glazing fitted as standard.

Every Green Retreats garden room is fitted with industry-leading double-glazing on all doors and windows as standard – keeping you warm and energy efficient in your garden room.

It is part of our ethos at Green Retreats to use the finest industry-leading materials to provide you with a superior product. This is why we proudly use Pilkington K Optiwhite™ double-glazing for every glass element in your Green Retreats garden room. Pilkington K Glass™ is the original hard-coated, pyrolytic low-emissivity coated thermal glass – argon filled and fitted with a Planitherm layer and Swisspacer to provide superior insulation. This glass allows passive solar gain through the coating, reflecting heat back into your room whilst allowing free heat from the sun to enter – keeping your garden building energy-efficient and warm in those colder winter months.

double glazing cross section

Cross-section of our uPVC double glazing profile

The Pilkington K Glazing we use is the Optiwhite™ range; designed to be ‘extra clear’ with very high light transmission and therefore allowing more natural light into your garden room.

Clear Edge uPVC Doors & Windows | Double Glazing

We have also partnered with Clear Edge uPVC, who specialise in manufacturing doors and windows specifically for garden rooms using industry-leading Rehau profiles on all of their products. This partnership has enabled us to ensure that the doors and windows used in your garden room are of the highest possible quality every-time.

Want to learn more about our double glazing?

You can find out more about our double glazing and other materials used when constructing your garden room on our manufacturing page. You can also call us on 01296 325777, talk to us on LiveChat or email us for more information. Alternatively, there are many ways to get your garden room project started, simply follow the links below to begin:


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Using our configurator you can design your perfect garden office with minimal effort, ensuring it’s tailored to your own personal preferences and specifications.

You can get a great idea of how your new garden office will look by using the 360 degree rotating viewer.

Also compatible with mobile and tablet devices

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