ACCREDITATIONS

Cornerstone is pleased to hold the following accreditations and memberships:

BS EN ISO 9001:2015

BS EN ISO 14001:2015

BS EN OHSAS 18001:2015

CHAS (Contractors Health & Safety Assessment Scheme)

Checkatrade

Constructionline (Level 3 – Gold)

Environmental Agency

ICO (Information Commissioners Office)

NIA (National Insulation Association)

Prompt Payment Code

BBA (British Board of Agrément)

Builder’s Profile

Green Deal Installer

GDGC (Green Deal & ECO Guarantee Company)

SWIGA (Solid Wall Insulation Guarantee Agency)