Work done: replace felt and batten on half the roof, re-align one gutter, install hedgehogs, install new downpipes.
Quiet, tidy, efficient, respectful, I don't have enough words of praise.
Danny and the team were great, and the price was more than fair as well.
None of my garden (which is pretty cramped with plants/flowers this time of year) was damaged, they made sure to not disturb the hedgehog nest, they were so quiet I could barely hear them despite them working literally above my head while I was working on my laptop.
When it turned out it was more than one batten that was rotten, Danny discussed with me and we reached a compromise. I'm definitely getting them back in to do the other side of the roof next year!