i dont think its anything to do with a name!i think its more to do with personality than a name on a van!!!
spud window cleaning/james milton window cleaning?
i personally feel your name is better.it imprints a sense of a personal touch,reliability,trustworthyness on the mind.
my nickname where i used to work was "acid" as i used to take a fair bit of LSD at the time!i dont think i would use it as a name for my business though!!