Don't understand this "price too high price too low" stuff, everyone cleans in different circumstances, cost of business to run etc surely you get what you can, you can always re-negotiate the estimate, then there's compactness of work, is the work scattered? I got criticized on a poor forum of doing £6 jobs, they didn't even ask what the work involved was? 5 an hour I do of these that's £30 an hour for work 1.5 miles away from my home as a self employed one man op, I still have kept the work cause I'm not ripping them off.