i am trying to bid on a cleaning account but im not sure how much to bid a month if the place is at least 10,000 square feet how much would i bid?.--Answer1:You should really know the answer to this one already, if youve been in business for any length of time. Figure out how much it would cost you to clean a place this size, then add whatever your desired profit margin is. If you overbid, then it wasnt a good job for you anyway since you would have been shorting yourself.FYI, Ive heard that the going rate for janitorial services is typically between $0.50 and $1.50 per square foot per year, so you bid might be in the $415 to $1250 range. Its whatever works for you and whatever the going rate is in your area.