I'm a small business owner in northern Indiana and have expanded my lawn care to include power washing. Purchased a commercial pressure washer. Question is..........what is a fair estimate for pressure washing a lake front home? Is it standard practice to charge by the hour, if so, how much? Or, is it more acceptable to charge by the job..if so how much for a one story 2000 sf home? I first apply a cleaner and then power wash off? Further, what is a good water sealer (clear) to use on lake side decks? Thanks for help??????