ISO 9001

Provided by British Board of Agrément (BBA)

Additional notes: ISO 9001 Covers all businesses under the Keystone Group

Date of first issue: 07/11/2018

Date of last issue: 20/04/2022

Expiry date: 19/08/2024

IG Specials & Sunlounge Lintels - Special Steel Lintels

IG Brick Slip Feature Lintel - Standard/ Heavy/ Extra Heavy/ Extreme

IG Thin Joint Lintels - Standard/ Heavy/ Extra Heavy

IG Windposts - U, DU, LP

IG Roller Shutter Lintels - Standard/ Heavy/ Extra Heavy/ Extreme

IG Solid Wall Lintels - Standard/ Heavy / Extra Heavy/ Extreme

IG Cavity Wall Lintels - Wide Inner Leaf - Standard/ Heavy/ Extra Heavy/ Extreme

IG Box Lintels - Standard/ Heavy/ Extra Heavy Duty