Store front is fast pace, always on the move. You also have a very flexible schedule for completing your end of the deal. It is not uncommon to be a day late; although not recommended, just as long as you come once a week or once a month, whatever your agreement is with your client.
After having started my San Diego Window Cleaning business I have learned the hard way that unlike residential, your customer will pay you once a month and you will need to send in an invoice. However if you are lucky to land some restaurants they will usually give you free food. Store front is also nice in that you almost never need a ladder, but work mostly with a pole. This will make your job easier, and to make it even better, most of your cleanings will be outside only, with an occasional inside.
When you clean store fronts there are a few challenges however, for instance you will almost always need to bring your own water, which can add up if you have a full schedule everyday. At this point you will probably want to get a 50 gallon tank. Also you have to be careful of pedestrians and customers, not to get in their way or cause them to get hurt. When you go to clean the inside you will need to be very careful around signs and merchandise. You don’t want to lose customers by messing up their stuff.
If you don’t have a lot of money to start out with, store front window cleaning mixed with single story homes and commercial buildings will be the best way to go. Once you have made some money try and reinvest as much as possible into equipment that you need for cleaning two and three story homes and commercial buildings. Then you will have the ability to accept all sorts of jobs and direct your business in the area that most appeals to you.