The router position is under the stairs and the floors have not been carpeted so the engineer should be able to easily get a cable to where I want indoors.
Outside there is a small concrete wall:
I highlighted the mains water outlet. Would it be a fair guess that they would run it to there?
From there I am hoping they can run the cable along the main water feed to the entrance where I could pull it through.
..otherwise what can they do?