21°’s actions and achievements have not only delivered cutting edge sustainable products to the market, but in so doing have progressed the nature of this market place itself.
The Queen’s Awards for Enterprise: Sustainable Development 2009
About us
Since 1995, we’ve been supplying a range of specialist products and services including triple glazed windows and doors, MVHR heat recovery ventilation and airtightness products.
About us
We’re the sustainable building pioneers, supplying a range of specialist products and services for Passivhaus and low energy projects, since 1995.
21° is committed to low energy building to help reduce carbon emissions and cut heating bills. The most effective way of doing this is to focus on the building fabric, using high levels of continuous insulation, together with stringent airtightness and advanced ventilation strategies. This approach leads us to be strong proponents of the Passivhaus approach to low energy building, which can cut a building’s heating need by up to 90%, compared with typical uninsulated UK housing stock.
As well as reducing energy bills and CO2 emissions, low energy and Passivhaus homes and buildings can improve the quality of life for occupants. Constant warm and even temperatures, eradication of mould and condensation issues, and elimination of cold spots or draughts can really make our homes and buildings more comfortable and enjoyable places to be.
By developing expertise in Passivhaus products, 21° hopes to facilitate the construction of Passivhaus buildings in the UK and to promote current ‘best practice’ in low carbon construction.
Our products
We offer a wide range of products, including triple-glazed timber & alu-clad windows and doors advanced MVHR heat recovery ventilation, specialist airtightness & insulation products.
Certified and quality tested
All of our products are thoroughly tested and quality assured.
FSC Certified Wood
Part Q Complient
Secured by design
Why choose 21°?
25 years’ trusted experience
Highest quality service
Comprehensive range of products
Confidence on quality
Friendly & knowledgeable team
No sub-contractors
Discover how it all began for 21°
Find out more about who we are, why thermal efficiency was a major priority from the start and why we switched to triple glazing as standard and began to supply a wide range of Passivhaus products.
Read our background
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