First basic questions you should be asking yourself are the following:
Do I really want to get into window cleaning?
Am I really cut out for the job?
What are the H&S risks involved?
What are the financial risks involved?
Could I work with a so say friend and not fall out over money?
Most will fail for one reason or another within the first year as it's not as easy as people make out it to be.
To answer your question the number of cleans per day is irrelevant if you ask me and your mate is living in cuckoo land.
100-120 houses a day between the two of you...Good luck with that one
May I ask are you fully funding this new venture by any chance?
