Don't forget there is other revenue to earn apart from carpet ,curtain and upholstery cleaning, add floor cleaning to your armoury I do a lot of Amtico floor cleaning and very nice it is too.
This product is horrendously expensive and any client of yours that has it fitted will firstly, have plenty of money and secondly want it kept up to spec.
You can charge very good money to take care of it but once again make sure you are trained first.
Damaging this of type of flooring and replacement costs involved doesn't bear thinking about.