Hi Danno
Looking at it from another perspective, how much do you know about carpet cleaning.
You will almost certainly be asked to clean upholstery too and maybe hard floors.
All these areas have many pitfalls and it is what allows those who know what they are doing to charge good prices. However this takes time and rushing in when you don't know much will almost certainly result in problems which may well put you off permanently.
My advice is establish WC first, then get some training etc.
Cheers
Doug