Originally founded as Green Building Store by three experienced building professionals who shared a common frustration with the poor availability of ecological building products. Also proud pioneers in the UK’s sustainable building movement, having constructed the first-ever Passivhaus in the UK with cavity wall construction, and being among the first to achieve Passivhaus certification for a home in the country.
Green Building Store rebranded to 21 Degrees in March 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.