Trade associations and Professional Bodies for Under Floor Heating

Association of Plumbing and Heating Contractors

Building Engineering Services Association

Chartered Association of Building Engineers

Chartered Institute of Building

CHAS

CIPHE

CORGI

Federation of Master Builders

Green Deal

Guild of Master Craftsmen

Institute of Plumbing & Heating Engineers

Norfolk Trusted Trader

Refcom F-Gas Certification

The Consumer Protection Guarantee

TrustMark

Which? Trusted Trader