21 Degrees Colchester

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

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. 

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

Positive: Professionalism, Punctuality, Quality, Responsiveness, Value Steve Cross Plumbing fitted an Air Source Heat Pump system to our house. Staff were all very professional, efficient, tidy and did an excellent job. The whole installation was completed on time and on budget. I would highly recommend them to anybody.

Adrian Edwards - Oxfordshire

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.

Nick Roberts - Oxfordshire

Air Source We had excellent advice from this company about our air source heat pump. Rather than taking our money for a job that didn’t need doing we were advised to speak to installers/suppliers about the issue to get it rectified under warranty. Would use the company again for problems and servicing. They are very easy to communicate with.

Heather Cox - Oxfordshire

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