Gas Safety Certificate (CP12): Issued by a Gas Safe registered engineer after inspecting gas appliances and installations. Required annually. Electrical Installation Condition Report (EICR): Issued by a qualified electrician. Checks the property’s electrical system for safety. Required every 5 years. Energy Performance Certificate (EPC): Issued by an accredited energy assessor. ... https://firstlandlordcertificateslondon.co.uk/