Ball park cost to run uprated wiring to a shower from consumer unit?

thanks in advance

£150 ish.
Depends how far, and how difficult to get the cable in.
A typical run, from consumer unit in front of house to bathroom at rear woudl take around 4 hours for me.
The 10mm t+e cables costs £2.50ish a metre, a good pull switch is £15, so add them onto the £15-20 a hour labour cost.

Ta Alanl