21 Degrees Durham

Energy efficient upgrades in Durham and the surrounding areas.
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Energy efficient upgrades in Durham

Originally founded as Unique Energy and rebranded to Green Building Renewables in 2022, we evolved to become 21 Degrees in November 2024.

Whether you need a single product or the ultimate Passivhaus, your system needs to be well thought out and designed correctly. We adopt a full-circle approach to provide better performing buildings from a carbon, cost, and comfort perspective to get you the right outcome

Our specialist products and services include renewables such as solar panels and heat pumps, and energy efficient upgrades such as triple-glazed windows and doors, mechanical ventilation with heat recovery (MVHR) systems, and insulation and airtightness products. 

Series of three images, 3d diagram, exterior of a house and a close up of a window

Total of 7 Solar panels installed on our bungalow roof last week. Very professional, polite and helpful installers.

Anne Haider - Peterlee

5 stars Google Review The workman were very professional, they did an excellent job! Very clean and dirty, we were kept updated with the progress of the works. Excellent would definitely recommend this company to family and friends.

Debbie Anatole-Henry - Durham

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