Gavin
I do, price depends on the job, its not like carpet cleaning can be very labour intensive striping and sealing and agents/polish can be expensive.
I have been known to charge £7.50 sqm on lager areas, on small a price, which can work out more on sqm.
Spray buffing again depends on job but as an average £45 per hour, burnishing more, we are talking one off’s jobs, contracts different! Again equipment can cost.
Hope this has helped would also recommend a course if going into this field as one cock up can cost you dearly more than a replacement carpet!
Len