Hi paul
I am doing hotels myself and although I do normally have a minimum charge when it comes to stains they can vary so much.
I have had a spilt drink in reception to 'projectile red wine vomit'! It also depends where those stains are?
In reception you may have to be there either very early or late at night when traffic is at a minimum whereas a bedroom they can keep it closed off until you are done with no interruption to their service.
I have just done a 290m promenade area with a biege carpet, stain removal included and it came up an absolute treat. It took me about 4 hours and i started it at 7.30am as it is a high traffic area. All the staff commented how nice it felt. They even treated me to a coffee break in their lounge area
It was a great way to start my day and with job satisfaction thrown in.
Sweet as!
Regards
Martin