timmmay: I don't think I want to pay over a thousand dollars.
The roofer has replied to my email saying that hole needs at least a fixing screw in it. He's also asked me how many sheets need to be replaced. I've suggested he decide, I don't like being on the roof.
While the job his guys have done isn't tip top the boss/owner is reasonably responsive. I think we'll resolve this to my satisfaction in the near future.
Things often go wrong, but when a company follows up and puts things right that's almost as good as doing it right the first time in my opinion.
driller2000: interesting read
and kudos to you rick - informative and comprehensive advice - nice one mate