answer to sophiaaimes.sky engineers will not run cable through loft/ internal walls etc.
A standard installation consists of cable run and tacked to skirting boards, anything other than this will be cancelled down and reffered to an independant(private) company
If a dish need to go on a chimney it may require additional brackets that is chargeable, this is to be paid on day to engineer.
PLEASE don't let these sales guys be pushy with you if you are unceratin don't be forced into anything even if they do say it's an offer. these offers last a while and these guys have a conversion target to meet