I've told this before of the hotel I do twice a year. 3 floors,32 to 38 rooms per floor. they block out 1 floor each Monday for 3 weeks. Take the hoses up to middle room on each floor, come through the window. Go to far end, work back to the middle. Go to other end, back to the middle. Helper moves 2 chairs onto bed, cranks a.c., presprays room and props door open with sprayer, comes back to me to pull hose. When I go into room with wand, he takes sprayer to next room to prespray. Before they added on 8 rooms per floor I did this job twice by myself. I was done in under 4 hours. Now with help and the extra 8 rooms per floor it takes about 5 hours each time. Helpers don't save me much time but I'm slowing down. $20 for regular rooms and $30 for suites and $150 per hallway. 3 sets of stairs at $75 each. 1 set only goes to the second floor. Just under $3000 for about 15 hours of work. We do the first floor hall on the first week and the 3rd week. It just won't come clean. I post pad the 1st floor hall sometimes and the pads are black. I also do the tile and grout in the lobby. They have no problem paying what I ask. I would go in there prepared to explain your quality for about 20 minutes until they say Ok you're hired, then give them your price.