Business, Energy and Clean Growth Minister Kwasi Kwarteng has confirmed that those completing work through the Energy Company Obligation (ECO) will need to be registered through a new quality scheme, delivered by TrustMark.

He said: "Driving up the energy efficiency of Britain’s homes is key to us reducing emissions from households, saving people money on their bills, and helping us to end our contribution to global warming entirely by 2050.

"This new scheme will guarantee households the peace of mind that workers installing energy efficiency measures in their homes are trusted tradespeople."

The measures will enable consumers to search the TrustMark website for accredited tradespeople, checking their installers are recognised before they start work on their homes.

The new mark builds on the existing government-endorsed TrustMark scheme, which the government says guarantees the quality of businesses. It is designed to ensure tradespeople meet industry standards, have good technical competence and trading practices, and have a commitment to providing good customer service.

Government intends to bring the amended regulations into force on 1 January 2020 to allow more time for businesses to register with TrustMark.