Only an authorised Green Deal Installer can install energy efficiency improvements under the Green Deal finance mechanism. Installers may specialise in one or multiple measures

BBA certification is recognised throughout the construction industry as a symbol of quality and reassurance. It's a vital ingredient for product manufacturers to help ensure acceptance with specifiers, building control, local authorities and insurers.

The Cavity Insulation Guarantee Agency provides independent 25 year guarantees for Cavity Wall Insulation fitted by registered installers in the UK and Channel islands.

Stroma Certification’s UKAS accredited Green Deal Installer Certification Scheme (GDI - PAS 2030) allows installers to complete installation work for Green Deal measures in conjunction with Publically Available Specification 2030. Only a GDI can perform installation of Green Deal approved energy efficiency measures for a property. Only through certification can you refer to yourself as a Green Deal Installer and use the Green Deal Quality Mark.