Regarding pricing it can be tricky one for sure as what some may think is expensive others think is cheap.
I think there is no right or wrong price if the customer is happy and you are happy what you get out of the job.
However after saying that it's very easy to undersell services if you're in the mindset to go in low every time to win work on price alone. Then you can end up regretting doing the work for that price as it turns out not as quick and easy as you thought it might be.
Regards to the example job I posted most would go in about 200-250 so Lee was the closest at £200.
I actually quoted £350 on that one and still got the job... go figure
Out of choice I would rather just do top dollar gutter clearing jobs all day long than include f.s.g cleans aswell as to be honest f.s.g's can be a hard work, take a long time and pain in the arse to do properly.
For me it puts it into perspective when you get to do a gutter clearing job worth say £300 and takes around 2 hours to do rather than spending a lot more time and effort doing jobs like the one posted.