Many AECB members are either manufacturers or merchants that you can buy sustainable building materials from

Go to our members directory and find out more

Ecological Building Systems

Established in 2007 and based in Ireland and the UK, Ecological Building Systems believe in a “Fabric First” approach to the design of healthy low energy sustainable buildings.  Supporting architects, contractors, consultants and homeowners with high-quality, high-performance diffusion open natural building materials and solutions for newbuild and retrofit projects.


Partel is a leading developer and supplier of high-performance systems for the low-energy building sector. Combining their knowledge in architecture and engineering with technical expertise and a unique building physics approach providing an integrated range of Airtight and Windtight Systems, Thermal Bridging Solutions, and Ventilation Systems.


STEICO is a major supplier of I-joists and wood fibre insulations aiming to promote the environmental and wellbeing benefits of using its ecological wood fibre insulations. Collaborating with many organisations to endorse the credentials of natural materials, STEICO is actively driving the trend to select natural, breathable wood fibre solutions.

Green Building Store

Green Building Store has been supplying pioneering sustainable building products since 1995. They supply a range of specialist products and services for Passivhaus and low energy projects, including triple glazed timber windows and doors, MVHR heat recovery ventilation, insulation, airtightness and water saving products. They run CPD's around the products they stock.

Intelligent Membranes

Intelligent Membranes and its director Adam White has dominated the building envelope world for Passivhaus over the past few years with their liquid applied internal and external membranes which include the world-famous Passive Purple. With their very own Passivhaus Bar and training room in Cambridge, they have brought Passivhaus to the masses.


Ecomerchant have been around since 1998. Dedicated to making ethically sourced, sustainable building materials accessible to all at affordable prices. They consider the environmental merits of every product before including them in their ranges, opting not to sell products which cause excessive environmental impact.