TRADE
The Federation of Master Builders
Construction Industry Training Board
National Federation of Roofing Contractors
PROFESSIONAL
The Chartered Institute of Building
The Institute of Roofing
The CORGI Council
Gas Safe Register
National Inspection Council for Electrical Installation Contracting (NICEIC)
ASSOCIATIONS
British Board of Agrément
Energy Saving Trust
Environment-Agency
Health & Safety Executive
National Quality Assurance
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