Perry Grant
I know how you feel with Virgin Media, I had the same problem. I'm a roofer, so I fixed the problems myself. The cost depends on where the damage has been caused, I'd have to see the damage to give an estimate, but normally you'd be looking at around £200 or so to fix these problems, bricks can be either repaired with resin, or replaced and lead can easily be cut out and re-placed and then re-dressed.