- National Inspection Council for Electrical Installation Contracting (NICEIC) is an independent body for electrical installation matters.
Telephone: 0333 015 6625
- Gas Safety Register is the official list of gas engineers who are qualified to work safely and legally on gas appliances.
Telephone: 0800 408 5500
- Federation of Master Builders (FMB)
Telephone: 01656 750 955
- National Federation of Builders (NFB)
Telephone: 0330 333 7777