What is the average rate per square ft. for commercial cleaning?

Are you asking about what you might charge for this kind of service or what others might charge for it? Also, where is the location where this kind of service is to be provided? It would be helpful for us to know that so that we can help you the best here!

Depending on the going rates for this kind of service, also dependent on where it is being done, my suggestion would be to set a monetary figure as to what you want to make per hour and base an estimate on how many hours it's going to take you to do the job. If you or they are going to be providing the tools and supplies, then that would also figure into the estimate. But, the bottom line for me would be what I would want to come up with an estimate as to what I wanted to make per hour without having to provide the tools and supplies. If you provide the tools to do the job, then you would charge just a little more. If you provide the supplies, such as cleaning liquids, paper of any kind, then I would charge a lot more.

Other things that you have to consider are what you are paying for at least liability insurance for just the business and insurance for your business vehicle as well as the usual maintenance on it. If this job might require you to travel a considerable distance in order to get to it, then I would also suggest adding some for mileage for what you charge the customer.

But, please let us know where this will be taking place, as someone who knows the specific going rates in the area just might come along and help in answering your question.

Thanks!