I am getting too old and sick to do my job, but have an idea?
I used to do pretty much one thing, every night with three helpers for over 15 years. Bonnet clean nasty, greasy restaurant carpet. You do this with a couple buckets and a floor buffer. With all materials, you can get started with one machine for about $1,500-1,800. I own four set ups. One really top of the line machine made in USA, that was about $1,800. The other three with made in China buffers that cost me $1,300 per set up. They work well, just not as well as the made in USA one.
If you extract or steam clean carpet, you will be lucky to get 500 sq ft per hour done. The way I do it, I get more like 1,200 sf per hour. I only extract twice a year. I bonnet clean 10 times per year. The carpets look clean, that's what matters.
When I bonnet clean, I charge 6¢ per sf and make about $70 per hour. This make everyone happy. When I extract, I have to charge more, 9¢ per hour. I make $45 per hour. Nobody is really happy there, but at some point, you need to extract.
I live in a economic area not doing well, Binghamton, NY.
I pay them half the profits and hold them to a very high standard. I bring the extractor and help as needed.