Consumer unit replacement is notifiable work under Part P of the Building Regulations in England and Wales. In Manchester, this means the work must be carried out by an electrician registered with a competent person scheme (such as NICEIC, NAPIT, or ELECSA), or the homeowner must notify Manchester City Council Building Control before the work starts.
Regulation 421.1.201 of BS 7671 confirms that an Electrical Installation Certificate (EIC) must be issued for consumer unit replacements. The registered electrician submits notification to the local authority through their scheme provider.
For properties in other Greater Manchester boroughs — Salford, Stockport, Tameside, Trafford, Bolton, Bury, Oldham, Rochdale, or Wigan — notification is submitted to the relevant borough council. The competent person scheme handles this automatically when the electrician registers the work.
You should receive a copy of the EIC and a Building Regulations Compliance Certificate within 30 days. Keep these documents — they are needed when selling the property.