Certificated Installers 

• 2010 Rotherham Ltd (Rotherham)
• A & R Hepburn (Engineering) Ltd (Scotland)
• Aaron Services Ltd (East Anglia, Lincolnshire)
• Advanced Gas Services Ltd (East Yorkshire)
• Aqua Interiors (Yorkshire, Lancashire, East Midlands, North East England)
• Blackpool Coastal Housing (Blackpool)
• Citigas Emergency Gas Services Ltd (Nottingham, Derby, Chesterfield, Sheffield and Rotherham)
• CRHS Heat
• East Durham Homes Ltd (East Durham)
• East Riding of Yorkshire Council Housing Maintenance (Beverley)
• Fusion Heating Ltd (Northern & Republic Ireland)
• Hackney Homes Property Services (South East London)
• Heat, Energy & Associated Technology Ltd (National)
• Hull City Services Construction Division (Hull)
• Ian Mitchell Gas Services Ltd (East Yorkshire)
• J B Heating Ltd (West London)
• Kirklees Building Services (National)
• Leeds City Council, City Services, Property Maintenance (Leeds)
• Martin Dixon Ltd (Humberside, North, West & South Yorks, North Lincs, Greater Manchester)
• New Charter Building Company Ltd (North West)
• North East Derbyshire District Council (North East Derbyshire)
• Nottingham City Homes Ltd (Nottingham)
• R G Francis Ltd (Anglia & East London)
• Read & Errington (Blackpool)
• Renfrewshire Council (Renfrewshire)
• Richard Irvin Building Services (Scotland)
• Robert Heath Heating Ltd ( London, Surrey, Berks, Hants, Sussex, Middlesex, Kent, Essex, Herts, Beds, Nottinghamshire, Dorset, Bucks)
• Rule & Parker (East Anglia)
• St Leger Homes, Doncaster, South Yorkshire
• Sun Realm Heating Co Ltd
• Swale Heating (National)
• The Gas Company (Yorkshire)
• Thorpete Associates Ltd (East Midlands)
• Town & Country Gas Ltd (Staffordshire & South Cheshire)
• WRB Gas (Contracts) Ltd (Scotland)
• Micron H&V Ltd (East Riding of Yorkshire, North Lincolnshire and South Lincolnshire)

Please note this is not an exhaustive list, please contact CORGI Certification for names and numbers of Certificated installers in your area.