• 1989

  • Keystone Lintels opens first design, production and distribution facility in Cookstown.

• 1994

  • Keystone Lintels gains the majority share of the Irish Lintel Market.

• 1997

  • Keystone Lintels opens first distribution depot in Birmingham.

• 2001

  • Keylite Roof Windows begins manufacturing in Cookstown.

• 2002

  • Keystone Lintels relocates to a large distribution centre in Swadlincote, South Derbyshire.

• 2005

  • Keylite Roof Windows opens UK distribution warehouse in Swadlincote.

• 2006

  • Keystone Lintels acquires IG Limited & Acier Building Components.
  • Keylite Roof Windows establishes “Keylite Polska” in Zambrow, Poland.

• 2011

  • IG-GRP Building Components is formed.

• 2012

  • smartroof, the leading brand in roof panel technology became part of The Keystone Group.

• Today

  • The Keystone Group is the UK & Ireland’s largest Steel Lintel Manufacturer.
  • Keylite Roof Windows is the UK & Ireland’s fastest growing Roof Window manufacturer.