Making Buildings Better
Whether you are refurbishing your home or embarking on a newbuild Passivhaus project, 21 Degrees offers the expertise, products, and support to make your energy-efficient vision a reality.
Our Approach: The Whole House Philosophy
At 21 Degrees, we believe that every building should be considered as a complete system. Our whole house approach ensures that insulation, airtightness, heating, and ventilation are all integrated for optimal performance, comfort, and sustainability. This prevents common issues like condensation and mould, and avoids the unintended consequences of piecemeal upgrades.
Expert Consultancy and Design Services
With over 25 years’ experience in low-energy building, our team provides specialist consultancy for homeowners, architects, and self-builders. We offer:
- Low Energy Design Service: Early-stage advice on building fabric, U-values, windows, airtightness, and ventilation, using the Passivhaus Planning Package (PHPP) for precise modelling.
- Heating & Ventilation Specification: Detailed room-by-room calculations for air source heat pumps, heat emitters, and MVHR systems, ensuring compliance with MCS standards and optimal comfort.
High-Performance Products
We supply a comprehensive range of products designed to deliver outstanding energy efficiency and comfort:
- Triple Glazed Timber & Alu-Clad Windows and Doors
- Entrance, French, Lift & Slide, and Bi-Fold Doors
- Mechanical Ventilation with Heat Recovery (MVHR) Systems
- Specialist Airtightness and Insulation Products
- Renewable Technologies: Solar panels, heat pumps, and battery storage for sustainable energy generation and use.
Our products are chosen for their durability, performance, and ability to integrate seamlessly into both new and existing buildings.
Unmatched Experience and Service
21 Degrees is built on decades of expertise, including the legacy of the Green Building Store and other leading brands in sustainable construction. Our technical teams remain unchanged and are dedicated to delivering solutions tailored to your unique project requirements.
We pride ourselves on:
- Technical Expertise: Deep knowledge of low-energy and Passivhaus standards.
- Personal Service: Support from initial consultation to aftercare.
- Innovation: Continual pursuit of better solutions and technologies.
- Sustainability: Commitment to reducing carbon, cost, and improving occupant health.
Serving the UK from Our Historic Base
Based in a former woollen mill in the hills above Huddersfield, we supply projects across mainland UK. Our reach and reputation make us a trusted partner for those seeking to create buildings that are truly fit for the future.
Why Choose 21 Degrees?
- Full-Circle Solutions: From design to installation, we consider every aspect of your building’s performance.
- Pioneers in Passivhaus: Leaders in bringing Passivhaus standards to the UK since 2007.
- Empowering Clients: We equip homeowners, architects, and businesses with the knowledge and technology to harness sustainable energy and safeguard the planet.
Start Your Journey to a Better Building
Whether you are an architect, self-builder, or homeowner, 21 Degrees is ready to help you make your building better—more comfortable, efficient, and sustainable for generations to come.
