I understand that wiring regulations have tightened and the install will require a minor works cert.

Depends if you're simply connecting the cooker to an exiting circuit (say at a connection plate), or installing a new circuit from scratch. The latter would require an EIC rather than a MWC. (The EIC would of course only have to cover the new work, not the entire installation.)

free standing cooker 3kw+.

Just checking that we are taking about a full "cooker" here - 4 rings, grill and oven in one big floor standing box kind of thing. Just that usually they're rated at a heck of a lot more than 3kW. Rather than say a counter top cooking appliance (e.g. a pair of hobs and perhaps a grill) that can often just plug into a socket.

  -  Andy.

I understand that wiring regulations have tightened and the install will require a minor works cert.

Depends if you're simply connecting the cooker to an exiting circuit (say at a connection plate), or installing a new circuit from scratch. The latter would require an EIC rather than a MWC. (The EIC would of course only have to cover the new work, not the entire installation.)

free standing cooker 3kw+.

Just checking that we are taking about a full "cooker" here - 4 rings, grill and oven in one big floor standing box kind of thing. Just that usually they're rated at a heck of a lot more than 3kW. Rather than say a counter top cooking appliance (e.g. a pair of hobs and perhaps a grill) that can often just plug into a socket.

  -  Andy.