I go at about £1.50 a foot for guttering sofit and fascia, so normally you'll be looking at around £30 a side. I go for a little more with an apex as it's much more hassle getting up there. Big areas if cladding on houses are easy money, you can put in a price of say £20 and they take no time at all.
We did one this morning dormer style so 4 lots of gutters and fascias in total, cladding and an apex and only charged £90, could have charged a bit more I suppose but 2 of us did the job in an hour. We had windows in the street to do as well. We booked in 3 more bungalows for next time as well, another 2 hours work at about £170.
Yes I could charge a bit more, but pricing well and getting it with repeat business year on year is better than pricing astronomically and not getting it.
Simon.