Hmm, for pressure washing, I think the first four figure job I did was for washing trucks, $2000 for a days work. My first 5 figure job was $17k about 12 years ago cleaning concrete at a location where, if I told you, I would have to kill you. The funny thing is that they had another contractor under contract, but he was doing a lousy job, so they called me to clean it up for four times his price. Crazy stuff was happening. There is nothing like getting paid to reclean an area while the concrete is still wet from another contractor.