Green Building Store is now 21°
Windows

Our range

We believe you thrive in the places where you experience comfort. Discover our range of high performance triple-glazed windows, suitable for low energy and Passivhaus homes.

Our window range

Our window ranges are available in two types of frame and two depth options; timber and aluminium clad timber. *78 or 98 refers to the depth of the window frame. All our windows are responsibly source using FSC® certified timber.

GBS78
GBS98
GBS78A
GBS98A
Certified and quality tested

All of our products are thoroughly tested and quality assured.

FSC Certified Wood

Part Q Compliant

Secured by design

Make your windows unique to you

Hardware

Customise your new windows with your preferred hardware.

Frame styles

There's a range of frame options for your windows. Please speak with a member of our team for other options.

Glazing options

We offer a range of glazing options to give you the flexibility you need.

How can we help?

Visit the showrooms

Windows are a big investment, so come and visit our showrooms in Huddersfield and Swindon or catch us at exhibitions around the UK to see our products for yourself.

Request a quote

Tell us about your project, and we'll make sure you get a no-obligation quote from us. Take a step towards a more energy-efficient home today.

Get in touch

We offer a friendly and responsive aftersales service for our windows and door ranges, with a dedicated office and on-the-road aftercare team.

Life changing homes
Find us
Heath House Mill
Unit 6, Heath House Lane
Golcar
Huddersfield HD7 4JW
T: 01484 461705 E: [email protected]
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21° is a trading name of Environmental Construction Products Ltd. Registered Office: 85 Great Portland Street, London, W1W 7LT. We are an Efficient Building Solutions business. VAT registration number: 640 7097 42. Company registration: Cardiff 3359943

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