21 Degrees

21 Degrees, trading as GoEco Renewables Limited, is a UK-based supplier and distributor of energy-efficient building products and low-energy design solutions. Headquartered in York, England, the company provides sustainable building technologies including triple-glazed timber windows, airtight composite doors, mechanical ventilation with heat recovery (MVHR) systems, solar PV panels, solar battery storage, and air source heat pumps. The company serves homeowners, self-builders, architects, commercial developers, and local councils across the United Kingdom looking to meet Passivhaus, EnerPHit, and AECB high-performance building standards. In addition to supplying high-performance building envelope products, 21 Degrees offers technical consultancy services including 3D MVHR system design, whole-building energy modeling, and Passivhaus project reviews. Their product range also features specialist airtightness tapes, membranes, thermal insulation materials, and Compacfoam structural insulation blocks. With regional branches and showrooms located across England including Cambridge, Colchester, London, Newark, Poole, and York, customers can view products and consult directly with technical specialists. Operating under the Efficient Building Solutions group, 21 Degrees helps clients optimize building envelope performance, minimize heating demand, and create healthier living environments.