We’ve changed, for the future. Green Building Store is now 21°
Green Building Store is now 21°
We want to enable you to achieve the best you can in the context of your objectives and resources. We offer our consultancy services to self-builders and their architects.
Discover our range of triple glazed windows, suitable for low energy and Passivhaus homes. We make home a healthier and more comfortable place to be.
Discover our range of inward and outward opening entrance, french, lift and slide doors and Lacuna® bi-fold doors, suitable for low energy and Passivhaus homes.
Harness the power of the sun with our high-efficiency solar panels. Save on energy costs, reduce your carbon footprint, and enjoy reliable, sustainable energy for your home or business.
These cutting-edge heating and cooling systems harness the stable ground temperature or take air from outside to deliver remarkably energy-efficient solutions for residential, commercial and industrial properties.
We're nationally recognised for our expertise in designing, supplying and commissioning MVHR systems for Passivhaus and low energy projects.
We've been supplying pioneering sustainable building products since 1995. Get to know us a little better and our range of specialist products and services.
What is a healthy humidity level in the home?
Composite windows (UK): A complete guide
Why choose triple-glazed French doors for your build?
Benefits of triple-glazed windows
How to improve indoor air quality for respiratory health
Useful links
What is MVHR heat recovery ventilation?
Airtight Windows: Sealing Windows to Improve Airtightness
MVHR FAQs
Ventilation
Making Buildings Better
Cumberworth Radical Retrofit: ‘Whole House’ Retrofit for 'Hard-to-Heat’ House
