COMMUNITY Please see below some useful links to websites which may be of interest to you. Domestic Energy Assessors Accredited Energy Performance Certificate providers. The NICEIC The National Inspection Council for Electrical Installers and Contractors. Trust Mark TrustMark is an award-winning scheme supported by Government, building industry and consumer protection groups to help you find reliable, trustworthy tradesmen to make improvements and repairs inside and outside your home NHER Domestic Energy Assessor accreditation scheme provider.