No worries mate
the front didnt have much gutter as most of the front is the apex.
On the back I turned my goose neck right down and give them a good wash out, on this job i did put my ladder up near the down pipe and had a little look, it was mint.
I get a quite a few of these jobs, starting to quite down a bit now on average a couple a month in june/july was the peak I done many of them and conserv roofs aswell.
wfp on facias has its bad points tho(not many), if the soffits have vents they drip like mad, but again can be done, just need to price accordingly.