In my quotes along with the house, I include outside of gutters, front steps and walk as well as wax. All washing is done with hot water.I do this because 99% of people want it all - the deluxe package. I just spell it all out prior to submitting my quote so they know exactly what they are getting. I find that if I offer all this upfront I am more apt to get the bid over my competition. I also offer exterior wood cleaning and sealing as well as driveway cleaning and inside of gutters for extra.