21 Degrees Cambridge

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

Originally founded as Eco East Anglia and rebranded to Green Building Renewables in 2023, 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. 

Positive: Professionalism, Punctuality, Quality, Responsiveness, Value We had 21 Degrees install an Air Source Heat Pump system in our home. The staff were highly professional, efficient, and tidy, delivering an excellent job. The entire installation was completed within the agreed timeframe and budget. I would enthusiastically recommend them to anyone.

Jamie Edwards - Royston

Highly recommended! Really quick response when our old boiler gave up. Great advice from Paul and Steve, Sam the engineer was very polite, neat and tidy, they charged a fair price, and the team in the office were easy to deal with.

Mike Garvey - Cambridge

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