Ok on housing etc ..but if you are going to go into this line of business buy or rent a truck mounted elevated platform and do the job right.
Ive got a mate that owns a row of shops and hired a access platform the other week to clean the whole block with some awkward areas...cost of hire was £120 for the day(old mill type building over 3 floors approx 45 foot)...sort of made me think differently about the whole gutter cleaning business
So Kevin don,t jump down my throat as this is only my opinion and I bow to yr superior knowledge of cleaning s**t out of gutters for extraordinary amounts of re numeration