TrustMark is the only Government-endorsed Quality Scheme covering work carried out in or around the home. Operating across the UK, TrustMark is a not-for-profit social enterprise that continually re-invests in the scheme, to support Scheme Providers and Registered Businesses to improve consumer protection and standards across all sectors.
If you install energy efficiency measures under any of the government supported initiatives such as Energy Company Obligation (ECO), you must be certified to install the measures against the Publicly Available Specifications (PAS) standards 2030 by a certification body that UKAS has accredited.
It is important to understand that when a business becomes PAS 2030:2019 certified, then they must adhere to the PAS 2035:2019 requirements for a project, which must be overseen and lodged into the TrustMark Data Warehouse by a TrustMark registered Retrofit Coordinator.