How do you prepare a business plan for a cleaning company?

Please see the link provided for a detailed Q&A that explains how to write a business plan. Preparing a business plan for a cleaning company would follow the same process - except that you would want to include market information specifically related to the cleaning industry. Visit the Web sites of ISAA (www.issa.com) and the Building Service Contractors Association International (www.bscai.org) for an abundance of data and statistics. PowerHomeBiz also has some great information that you might be able to use on starting a janitorial business: http://www.powerhomebiz.com/vol95/janitorial.htm