Timber frame manufacturer Eco Frame Systems has announced a partnership with Austrian triple-glazed window manufacturer Gaulhofer.
Eco Frame Systems, based in Canterbury, said Gaulhofer products were able to meet strict Passivhaus standards.
Gaulhofer manufactures timber windows and aluminium-faced wood windows.
Eco Frame Systems undertakes projects across the south of England and London and is working with architects on Passivhaus projects.
