Question on housekeepers...

[Blackpool]

We're wanting to hire a housekeeper to come by once a week. All we want is someone who will do basic cleaning and mop the floors. That's what we had done in the states. From reading the threads here on housekeeping, it looks like much more is expected, like multiple visits a week, cleaning clothes, and sometimes even cooking. I don't want to offend any potential housekeeper. If I'm just asking for a basic service of dusting, vacuuming, cleaning and mopping once a week, is that considered offensive? Or am I supposed to pay for more services or visits per week? We just need to know what is expected of us. Any help would be greatly appreciated.