use something (either mortar/similar) to re-point where the lead flashing meets the roof and meets the chimney.
This all seems straight forward and uncomplicated so there shouldn't be any risk of him fucking it up - other than possibly breaking tiles.
The obvious place for him to scam us/add extra seem to me to be:
adding materials - which I now realise haven't yet been mentioned.
saying that there are extra broken tiles, fixing, then charging.
Saying we need to re-point the hips as per the original survey.
I realise this all sounds a bit neg. But he's annoyed Mrs. Hugo7 and I'm now being quizzed on what he's actually going to do and how we know it's been done.
I think starting with the assumption that a tradesman is going to scam you might mean that things are never going to end quite the way that you want them to.
My understanding of what he needs to do is:
This all seems straight forward and uncomplicated so there shouldn't be any risk of him fucking it up - other than possibly breaking tiles.
The obvious place for him to scam us/add extra seem to me to be:
I realise this all sounds a bit neg. But he's annoyed Mrs. Hugo7 and I'm now being quizzed on what he's actually going to do and how we know it's been done.