IG Lintels


Established in 1958, IG Lintels was acquired by Keystone in 2006 and is based in Cwmbran (South Wales). The Company has a strong brand reputation within the construction industry. IG Lintels have been supplied to many prestigious building contracts.


IG Elements


Proud to bring to you our new range of GRP building components. Designed using the latest CAD 3D technology all our products are authentic detailed reproductions of traditional building materials manufactured using the latest ‘RTM’ moulding techniques.


IG Masonry Support


The most recent addition to the Keystone Group is IG Masonry Support Systems. Combining optimum performance with design flexibility IG Masonry Supports offer masonry support solutions which are easy to install as well as a revolutionary brick slip system which radically reduces on site labour.