no. they don't notice if its awkward for you.
i was dumped recently by one, that i had given a discount to because it was £45 and she had it done regularly,i her know night before
but then it turned into, i am not in that day can you do the day after, or i am out just the front. or can you do it early.
this is a big double bay terace 3 storey, with 3 flats inside, not that hard.
but you have to do the front then pack up and drive 1/2 a mile round to the back, park in a dodgy lane and drag your hose though the cat pee smelling 100ft garden.
then randomly i got. one of the flats recomended a window cleaner so i am going to try them.